1
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Hall JN, Miller JH, Assary RS, Baddour FG, Dagle R, Dagle V, Griffin MB, Habas SE, Iisa K, Krause TR, Kumar A, Linger JG, Mittal A, Mukarakate C, Parks JE, Ruddy DA, Schmidt A, Sutton AD, Thorson MR, Unocic KA, Wang H, Winkelman A, Yang X, Schaidle JA. State of the Art in Thermal Catalytic Upgrading of Biomass and Biomass-Derived Intermediates. Annu Rev Chem Biomol Eng 2025; 16:371-408. [PMID: 40489304 DOI: 10.1146/annurev-chembioeng-082323-122317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2025]
Abstract
Biomass-derived energy sources represent a promising domestic route for fuel and chemical production, taking advantage of largely underutilized biological and waste resources. Heterogeneous catalysis plays a key role in these biomass conversion processes, as reflected by all American Society for Testing and Materials-approved pathways for producing sustainable aviation fuel proceeding through a catalytic step. This concise review seeks to establish the state of the art in thermal catalytic process development for various biomass-derived feedstocks and the current enabling capabilities that aid this development. Research needs are identified and described throughout the article, as further advancements in heterogeneous catalysis are required to improve the affordability and realize the full potential of biomass-derived products.
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Affiliation(s)
- Jacklyn N Hall
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois, USA
| | - Jacob H Miller
- National Renewable Energy Laboratory, Golden, Colorado, USA;
| | - Rajeev S Assary
- Material Science Division, Argonne National Laboratory, Lemont, Illinois, USA
| | | | - Robert Dagle
- Pacific Northwest National Laboratory, Richland, Washington, USA
| | - Vanessa Dagle
- Pacific Northwest National Laboratory, Richland, Washington, USA
| | | | - Susan E Habas
- National Renewable Energy Laboratory, Golden, Colorado, USA;
| | - Kristiina Iisa
- National Renewable Energy Laboratory, Golden, Colorado, USA;
| | - Theodore R Krause
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois, USA
| | - Adarsh Kumar
- National Renewable Energy Laboratory, Golden, Colorado, USA;
| | | | - Ashutosh Mittal
- National Renewable Energy Laboratory, Golden, Colorado, USA;
| | | | - James E Parks
- Manufacturing Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - Daniel A Ruddy
- National Renewable Energy Laboratory, Golden, Colorado, USA;
| | - Andrew Schmidt
- Pacific Northwest National Laboratory, Richland, Washington, USA
| | - Andrew D Sutton
- Manufacturing Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | | | - Kinga A Unocic
- Physical Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - Huamin Wang
- Pacific Northwest National Laboratory, Richland, Washington, USA
| | - Austin Winkelman
- Pacific Northwest National Laboratory, Richland, Washington, USA
| | - Xiaokun Yang
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
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2
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Doan HA, Li C, Miller JH, LiBretto NJ, Rein AL, Zhou M, Hafenstine GR, Vardon DR, Habas SE, Assary RS. Molecular-Level Insights into the Reaction Mechanisms of Reductive Etherification for the Production of Synthetic Biofuels. ACS OMEGA 2025; 10:16472-16480. [PMID: 40321557 PMCID: PMC12044437 DOI: 10.1021/acsomega.4c09698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2024] [Revised: 03/20/2025] [Accepted: 03/27/2025] [Indexed: 05/08/2025]
Abstract
Reductive etherification provides a pathway for creating low-carbon-intensity distillate fuel blendstocks and chemicals from biomass-derived alcohols and ketones. In this work, we examine the reductive etherification of representative model compounds, n-butanol and 4-heptanone, to form 4-butoxyheptane over size-controlled Pd nanoparticles supported on NbOPO4 through a combination of experiments and density functional theory (DFT) calculations. Reaction rate and selectivity trends from packed-bed reactions show that both the catalyst and support are needed to carry out the reaction and that reaction rates increase with increasing Pd particle size. The DFT calculations show that the reaction most likely proceeds via the formation of an enol intermediate on the support, which is subsequently hydrogenated on Pd. Furthermore, we rationalize the dependence of 4-butoxyheptane formation rates on Pd particle size by showing the energetic favorability of enol ether hydrogenation on low-index terrace sites (Pd(111) and (100)) compared to that on high-index step sites (Pd(110)).
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Affiliation(s)
- Hieu A. Doan
- Materials
Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Consortium
for Computational Physics and Chemistry, Bioenergy Technologies Office, Washington, DC 20585 United States
| | - Chenyang Li
- Materials
Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Consortium
for Computational Physics and Chemistry, Bioenergy Technologies Office, Washington, DC 20585 United States
| | - Jacob H. Miller
- Catalytic
Carbon Transformation & Scale Up Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Nicole J. LiBretto
- Catalytic
Carbon Transformation & Scale Up Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Alexander L. Rein
- Catalytic
Carbon Transformation & Scale Up Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Mingxia Zhou
- Materials
Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Consortium
for Computational Physics and Chemistry, Bioenergy Technologies Office, Washington, DC 20585 United States
| | - Glenn R. Hafenstine
- Catalytic
Carbon Transformation & Scale Up Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Derek R. Vardon
- Catalytic
Carbon Transformation & Scale Up Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Susan E. Habas
- Catalytic
Carbon Transformation & Scale Up Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Rajeev S. Assary
- Materials
Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Consortium
for Computational Physics and Chemistry, Bioenergy Technologies Office, Washington, DC 20585 United States
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3
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Case NT, Gurr SJ, Fisher MC, Blehert DS, Boone C, Casadevall A, Chowdhary A, Cuomo CA, Currie CR, Denning DW, Ene IV, Fritz-Laylin LK, Gerstein AC, Gow NAR, Gusa A, Iliev ID, James TY, Jin H, Kahmann R, Klein BS, Kronstad JW, Ost KS, Peay KG, Shapiro RS, Sheppard DC, Shlezinger N, Stajich JE, Stukenbrock EH, Taylor JW, Wright GD, Cowen LE, Heitman J, Segre JA. Fungal impacts on Earth's ecosystems. Nature 2025; 638:49-57. [PMID: 39910383 PMCID: PMC11970531 DOI: 10.1038/s41586-024-08419-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 11/18/2024] [Indexed: 02/07/2025]
Abstract
Over the past billion years, the fungal kingdom has diversified to more than two million species, with over 95% still undescribed. Beyond the well-known macroscopic mushrooms and microscopic yeast, fungi are heterotrophs that feed on almost any organic carbon, recycling nutrients through the decay of dead plants and animals and sequestering carbon into Earth's ecosystems. Human-directed applications of fungi extend from leavened bread, alcoholic beverages and biofuels to pharmaceuticals, including antibiotics and psychoactive compounds. Conversely, fungal infections pose risks to ecosystems ranging from crops to wildlife to humans; these risks are driven, in part, by human and animal movement, and might be accelerating with climate change. Genomic surveys are expanding our knowledge of the true biodiversity of the fungal kingdom, and genome-editing tools make it possible to imagine harnessing these organisms to fuel the bioeconomy. Here, we examine the fungal threats facing civilization and investigate opportunities to use fungi to combat these threats.
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Affiliation(s)
- Nicola T Case
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Sarah J Gurr
- Biosciences, University of Exeter, Exeter, UK
- University of Utrecht, Utrecht, The Netherlands
| | - Matthew C Fisher
- MRC Center for Global Infectious Disease Analysis, Imperial College London, London, UK
| | - David S Blehert
- National Wildlife Health Center, U.S. Geological Survey, Madison, WI, USA
| | - Charles Boone
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Donnelly Centre, University of Toronto, Toronto, Ontario, Canada
- RIKEN Center for Sustainable Resource Science, Wako, Japan
| | - Arturo Casadevall
- Department of Molecular Microbiology and Immunology, Johns Hopkins University, Baltimore, MD, USA
| | - Anuradha Chowdhary
- Medical Mycology Unit, Department of Microbiology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
- National Reference Laboratory for Antimicrobial Resistance in Fungal Pathogens, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
| | - Christina A Cuomo
- Department of Molecular Microbiology and Immunology, Brown University, Providence, RI, USA
| | - Cameron R Currie
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA
| | - David W Denning
- Manchester Fungal Infection Group, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Iuliana V Ene
- Fungal Heterogeneity Group, Institut Pasteur, Université Paris Cité, Paris, France
| | | | - Aleeza C Gerstein
- Department of Microbiology, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Statistics, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Neil A R Gow
- Medical Research Council Centre for Medical Mycology, University of Exeter, Exeter, UK
| | - Asiya Gusa
- Department of Molecular Genetics and Microbiology, Duke University, Durham, NC, USA
| | - Iliyan D Iliev
- Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, Cornell University, New York, NY, USA
- Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, New York, NY, USA
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medicine, Cornell University, New York, NY, USA
- Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY, USA
| | - Timothy Y James
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, USA
| | - Hailing Jin
- Department of Microbiology and Plant Pathology, Center for Plant Cell Biology, Institute for Integrative Genome Biology, University of California, Riverside, Riverside, CA, USA
| | - Regine Kahmann
- Max Planck Institute for Terrestrial Microbiology, Marburg, Germany
| | - Bruce S Klein
- Departments of Pediatrics, Medicine and Medical Microbiology and Immunology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - James W Kronstad
- Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada
| | - Kyla S Ost
- Department of Immunology and Microbiology, University of Colorado Anschutz School of Medicine, Aurora, CO, USA
| | - Kabir G Peay
- Departments of Biology and Earth System Science, Stanford University, Stanford, CA, USA
| | - Rebecca S Shapiro
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, Canada
| | - Donald C Sheppard
- Departments of Medicine and Microbiology and Immunology, McGill University, Montreal, Quebec, Canada
| | - Neta Shlezinger
- Koret School of Veterinary Medicine, Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, Israel
| | - Jason E Stajich
- Department of Microbiology and Plant Pathology, Center for Plant Cell Biology, Institute for Integrative Genome Biology, University of California, Riverside, Riverside, CA, USA
| | - Eva H Stukenbrock
- Christian Albrecht University of Kiel and Max Planck Institute for Evolutionary Biology, Plön, Germany
| | - John W Taylor
- Department of Plant and Microbial Biology, University of California, Berkeley, Berkeley, CA, USA
| | - Gerard D Wright
- M. G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Leah E Cowen
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada.
| | - Joseph Heitman
- Department of Molecular Genetics and Microbiology, Duke University, Durham, NC, USA.
| | - Julia A Segre
- Microbial Genomics Section, National Human Genome Research Institute, NIH, Bethesda, MD, USA.
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4
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Liao Q, Sun L, Lu H, Qin X, Liu J, Zhu X, Li XY, Lin L, Li RH. Iron driven organic carbon capture, pretreatment, recovery and upgrade in wastewater: Process technologies, mechanisms, and implications. WATER RESEARCH 2024; 263:122173. [PMID: 39111213 DOI: 10.1016/j.watres.2024.122173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 07/25/2024] [Accepted: 07/27/2024] [Indexed: 08/26/2024]
Abstract
Wastewater treatment plants face significant challenges in transitioning from energy-intensive systems to carbon-neutral, energy-saving systems, and a large amount of chemical energy in wastewater remains untapped. Iron is widely used in modern wastewater treatment. Research shows that leveraging the coupled redox relationship of iron and carbon can redirect this energy (in the form of carbon) towards resource utilization. Therefore, re-examining the application of iron in existing wastewater carbon processes is particularly important. In this review, we investigate the latest research progress on iron for wastewater carbon flow restructuring. During the iron-based chemically enhanced primary treatment (CEPT) process, organic carbon is captured into sludge and its bioavailability is enhanced through iron-based advanced oxidation processes (AOP) pretreatment, further being recovered or upgraded to value-added products in anaerobic biological processes. We discuss the roles and mechanisms of iron in CEPT, AOP, anaerobic biological processes, and biorefining in driving organic carbon conversion. The dosage of iron, as a critical parameter, significantly affects the recovery and utilization of sludge carbon resources, particularly by promoting effective electron transfer. We propose a pathway for beneficial conversion of wastewater organic carbon driven by iron and analyze the benefits of the main products in detail. Through this review, we hope to provide new insights into the application of iron chemicals and current wastewater treatment models.
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Affiliation(s)
- Quan Liao
- Department of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
| | - Lianpeng Sun
- Department of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, Guangdong 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - Hui Lu
- Department of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, Guangdong 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - Xianglin Qin
- Department of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
| | - Junhong Liu
- Department of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, Guangdong 510006, China
| | - Xinzhe Zhu
- Department of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, Guangdong 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - Xiao-Yan Li
- Shenzhen Engineering Research Laboratory for Sludge and Food Waste Treatment and Resource Recovery, Tsinghua Shenzhen International Graduate School, Tsinghua University, China
| | - Lin Lin
- Shenzhen Engineering Research Laboratory for Sludge and Food Waste Treatment and Resource Recovery, Tsinghua Shenzhen International Graduate School, Tsinghua University, China
| | - Ruo-Hong Li
- Department of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, Guangdong 510006, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China.
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5
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Lanfranchi A, Desmond-Le Quéméner E, Magdalena JA, Cavinato C, Trably E. Conversion of wine lees and waste activated sludge into caproate and heptanoate: Thermodynamic and microbiological insights. BIORESOURCE TECHNOLOGY 2024; 408:131126. [PMID: 39029767 DOI: 10.1016/j.biortech.2024.131126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/27/2024] [Accepted: 07/16/2024] [Indexed: 07/21/2024]
Abstract
In this study, wine lees and waste activated sludge (WAS) were co-fermented for the first time in a 4:1 ratio (COD basis) at 20, 40, 70 and 100 gCOD/L, in batch at 37 °C and pH 7.0. The substrates were successfully converted to caproate (C6) and heptanoate (C7) with a high selectivity (40.2 % at 40 gCOD/L). The rapidly-growing chain-elongating microbiome was enriched inClostridiaceaeandOscillospiraceae, representing together 3.4-8.8 % of the community. Substrate concentrations higher than 40 gCOD/L negatively affected C6 and C7 selectivities and yields, probably due to microbial inhibition by high ethanol concentrations (15.82-22.93 g/L). At 70 and 100 gCOD/L, chain elongation shifted from ethanol-based to lactate-based, with a microbiome enriched in the lactic acid bacteriaRoseburia intestinalis(27.3 %) andEnterococcus hirae(13.8 %). The partial pressure of H2(pH2) was identified by thermodynamic analysis as a fundamental parameter for controlling ethanol oxidation and improving C6 and C7 selectivities.
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Affiliation(s)
- A Lanfranchi
- INRAE, Univ Montpellier, LBE, 102 Avenue Des Etangs, 11100 Narbonne, France; Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca' Foscari Venezia, Mestre 30174, Italy.
| | | | - J A Magdalena
- INRAE, Univ Montpellier, LBE, 102 Avenue Des Etangs, 11100 Narbonne, France; Vicerrectorado de Investigación Y Transferencia de La Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - C Cavinato
- Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca' Foscari Venezia, Mestre 30174, Italy
| | - E Trably
- INRAE, Univ Montpellier, LBE, 102 Avenue Des Etangs, 11100 Narbonne, France
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6
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Yaşar Dinçer FC, Yirmibeşoğlu G, Bilişli Y, Arık E, Akgün H. Trends and emerging research directions of sustainable aviation: A bibliometric analysis. Heliyon 2024; 10:e32306. [PMID: 38947464 PMCID: PMC11214493 DOI: 10.1016/j.heliyon.2024.e32306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 05/28/2024] [Accepted: 05/31/2024] [Indexed: 07/02/2024] Open
Abstract
This study aims to conduct a bibliometric analysis to determine trends and emerging research directions of sustainable aviation between 2001 and 2023. 726 studies indexed in the Web of Science were examined through VOSviewer software. Science mapping and performance analyses were implemented to demonstrate a systematic quantitative review and the characteristics of the research area. Moreover, by using co-occurrence of keywords, citation, bibliographic coupling, co-authorship, and co-citation analyses, the trends of the research area were revealed in detail. Findings indicated that the publications on sustainable aviation literature were mainly conducted between 2020 and 2023. Research areas of the publications were mainly on "engineering" and "energy fuels". In terms of number of the publications, "International Journal of Sustainable Aviation Fuel" was the most productive source and Heyne was the most productive author. Co-occurrence analysis demonstrated that "sustainable aviation fuel" was the most frequently used keyword. Furthermore, sustainable aviation research has shifted in focus toward more challenging and technology-oriented research over time. Citation analysis indicated that the most cited author was Heyne, the most cited study was Ma et al.'s study on "Aviation biofuel from renewable resources: routes, opportunities and challenges" and the most cited sources was "Energy". Among countries, the U.S.A was the most cited country and Chinese Academy of Sciences was the most cited organization. Bibliographic analysis showed that Heyne was the author with the highest connection strength. Co-authorship analysis demonstrated that Washington State University was the most collaborative organization. Finally, co-citation analysis of cited references indicated that fundamental subjects and related references were mainly sustainable aviation fuel, production of sustainable aviation fuel and its use in aviation studies. It is anticipated that results of this study would contribute to sustainable aviation research and ensure guidance and new perspectives for future research topics and directions on sustainable aviation.
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Affiliation(s)
- Fatma Cande Yaşar Dinçer
- Department of International Trade and Logistics, Faculty of Applied Sciences, Akdeniz University, 07070, Antalya, Türkiye
| | - Gözde Yirmibeşoğlu
- Department of International Trade and Logistics, Faculty of Applied Sciences, Akdeniz University, 07070, Antalya, Türkiye
| | - Yasemin Bilişli
- Department of Office Services and Secretariat, Social Sciences Vocational School, Akdeniz University, 07070, Antalya, Türkiye
| | - Emel Arık
- Department of Journalism, Faculty of Communication, Akdeniz University, 07070, Antalya, Türkiye
| | - Hakkı Akgün
- Department of Journalism, Faculty of Communication, Suleyman Demirel University, 32260, Isparta, Türkiye
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7
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Hull T, King KJ, Kruger JS, Christensen ED, Chamas A, Pienkos PT, Dong T. Nutrient Recovery from Algae Using Mild Oxidative Treatment and Ion Exchange. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2024; 12:8573-8580. [PMID: 38845760 PMCID: PMC11151276 DOI: 10.1021/acssuschemeng.4c02658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 06/09/2024]
Abstract
Valorization of algal biomass to fuels and chemicals frequently requires pretreatment to lyse cells and extract lipids, leaving behind an extracted solid residue as an underutilized intermediate. Mild oxidative treatment (MOT) is a promising route to simultaneously convert nitrogen contained in these residues to easily recyclable ammonium and to convert carbon in the same fraction to biofuel precursor carboxylates. We show that for a Nannochloropsis algae under certain oxidation conditions, nearly all the nitrogen in the residues can be converted to ammonium and recovered by cation exchange, while up to ∼20% of the carbon can be converted to short chain carboxylates. At the same time, we also show that soluble phosphorus in the form of phosphate can be selectively recovered by anion exchange, leaving a clean aqueous carbon stream for further upgrading.
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Affiliation(s)
- Tobias
C. Hull
- Advanced
Energy Systems Graduate Program, Colorado
School of Mines, Golden, Colorado 80401, United
States
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Kameron J. King
- Department
of Civil and Environmental Engineering, Old Dominion University, Norfolk, Virginia 23529, United States
| | - Jacob S. Kruger
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Earl D. Christensen
- Catalytic
Carbon Transformation & Scale-Up Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Ali Chamas
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Philip T. Pienkos
- Matereal,
Inc. 1007 Savannah Avenue, Pittsburgh, Pennsylvania 15227, United States
| | - Tao Dong
- Catalytic
Carbon Transformation & Scale-Up Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
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8
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Tanvir RU, Li Y, Hu Z. Competitive partitioning of denitrification pathways during arrested methanogenesis: Implications in ammonium recovery, N 2O emission, and volatile fatty acid production. BIORESOURCE TECHNOLOGY 2024; 401:130717. [PMID: 38642664 DOI: 10.1016/j.biortech.2024.130717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 04/07/2024] [Accepted: 04/17/2024] [Indexed: 04/22/2024]
Abstract
The complex interaction between nitrate (NO3-) reduction and fermentation is poorly understood when high levels of NO3- are introduced into anaerobic systems. This study investigated the competitive distribution between conventional denitrification (DEN) and dissimilatory nitrate reduction to ammonium (DNRA) during simultaneous denitrification and fermentation in arrested methanogenesis. Up to 62% of initial NO3- (200 mg-N/L) was retained as ammonium through DNRA at a chemical oxygen demand (COD)/N ratio of 25. Significant N2O emission occurred (1.7 - 8.0% of the initial NO3-) with limited carbon supply (≤1600 mg COD/L) and sludge concentration (≤3000 mg COD/L). VFA composition shifted predominantly towards acetic acid (>50%) in the presence of nitrate. A novel kinetic model was developed to predict DNRA vs. DEN partitioning and NO2- accumulation. Overall, NO3- input, organic loading, and carbon source characteristics independently and collectively controlled competitive DNRA vs. DEN partitioning.
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Affiliation(s)
- Rahamat Ullah Tanvir
- Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, USA
| | - Yebo Li
- Quasar Energy Group, 8600 E Pleasant Valley Road, Independence, OH 44131, USA
| | - Zhiqiang Hu
- Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, USA.
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9
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Miller J, Nimlos CT, Li Y, Young AC, Ciesielski PN, Chapman LM, Foust TD, Mukarakate C. Risk Minimization in Scale-Up of Biomass and Waste Carbon Upgrading Processes. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2024; 12:666-679. [PMID: 38239432 PMCID: PMC10792666 DOI: 10.1021/acssuschemeng.3c06231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/22/2023] [Accepted: 12/01/2023] [Indexed: 01/22/2024]
Abstract
Improving the odds and pace of successful biomass and waste carbon utilization technology scale-up is crucial to decarbonizing key industries such as aviation and materials within timelines required to meet global climate goals. In this perspective, we review deficiencies commonly encountered during scale-up to show that many nascent technology developers place too much focus on simply demonstrating that technologies work in progressively larger units ("profit") without expending enough up-front research effort to identify and derisk roadblocks to commercialization (collecting "information") to inform the design of these units. We combine this conclusion with economic and timeline data collected from technology scale-up and piloting operations at the National Renewable Energy Laboratory (NREL) to motivate a more scientific, risk-minimized approach to biomass and waste carbon upgrading scale-up. Our proposed approach emphasizes maximizing information collection in the smallest, most agile, and least expensive experimental setups possible, emulating the mentality embraced by R&D across the petrochemical industry. Key points are supported by examples of successful and unsuccessful scale-up efforts undertaken at NREL and elsewhere. We close by showing that the U.S. national laboratory system is uniquely well equipped to serve as a hub to facilitate effective scale-up of promising biomass and waste carbon upgrading technologies.
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Affiliation(s)
- Jacob
H. Miller
- Catalytic
Carbon Transformation and Scale-Up Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Claire T. Nimlos
- Catalytic
Carbon Transformation and Scale-Up Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Yudong Li
- Catalytic
Carbon Transformation and Scale-Up Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Andrew C. Young
- Catalytic
Carbon Transformation and Scale-Up Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Peter N. Ciesielski
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Liz M. Chapman
- Catalytic
Carbon Transformation and Scale-Up Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Thomas D. Foust
- Catalytic
Carbon Transformation and Scale-Up Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Calvin Mukarakate
- Catalytic
Carbon Transformation and Scale-Up Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
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10
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Rachbauer L, Granda CB, Shrestha S, Fuchs W, Gabauer W, Singer SW, Simmons BA, Urgun-Demirtas M. Energy and nutrient recovery from municipal and industrial waste and wastewater-a perspective. J Ind Microbiol Biotechnol 2024; 51:kuae040. [PMID: 39448370 PMCID: PMC11586630 DOI: 10.1093/jimb/kuae040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Accepted: 10/22/2022] [Indexed: 10/26/2024]
Abstract
This publication highlights the latest advancements in the field of energy and nutrient recovery from organics rich municipal and industrial waste and wastewater. Energy and carbon rich waste streams are multifaceted, including municipal solid waste, industrial waste, agricultural by-products and residues, beached or residual seaweed biomass from post-harvest processing, and food waste, and are valuable resources to overcome current limitations with sustainable feedstock supply chains for biorefining approaches. The emphasis will be on the most recent scientific progress in the area, including the development of new and innovative technologies, such as microbial processes and the role of biofilms for the degradation of organic pollutants in wastewater, as well as the production of biofuels and value-added products from organic waste and wastewater streams. The carboxylate platform, which employs microbiomes to produce mixed carboxylic acids through methane-arrested anaerobic digestion, is the focus as a new conversion technology. Nutrient recycling from conventional waste streams such as wastewater and digestate, and the energetic valorization of such streams will also be discussed. The selected technologies significantly contribute to advanced waste and wastewater treatment and support the recovery and utilization of carboxylic acids as the basis to produce many useful and valuable products, including food and feed preservatives, human and animal health supplements, solvents, plasticizers, lubricants, and even biofuels such as sustainable aviation fuel. ONE-SENTENCE SUMMARY Multifaceted waste streams as the basis for resource recovery are essential to achieve environmental sustainability in a circular economy, and require the development of next-generation waste treatment technologies leveraging a highly adaptive mixed microbial community approach to produce new biochemicals, biomaterials, and biofuels from carbon-rich organic waste streams.
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Affiliation(s)
- Lydia Rachbauer
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | | | - Shilva Shrestha
- Department of Environmental Health and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Werner Fuchs
- Department for Agrobiotechnology, Institute of Environmental Biotechnology, University of Natural Resources and Life Sciences, Vienna, 3430 Tulln, Austria
| | - Wolfgang Gabauer
- Department for Agrobiotechnology, Institute of Environmental Biotechnology, University of Natural Resources and Life Sciences, Vienna, 3430 Tulln, Austria
| | - Steven W Singer
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Blake A Simmons
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Joint Bioenergy Institute, Emeryville, CA 94608, USA
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11
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Sun J, Zhang L, Loh KC. Enhancing scalability and economic viability of lignocellulose-derived biofuels production through integrated pretreatment and methanogenesis arrest. BIORESOURCE TECHNOLOGY 2023; 389:129790. [PMID: 37820965 DOI: 10.1016/j.biortech.2023.129790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/14/2023] [Accepted: 09/17/2023] [Indexed: 10/13/2023]
Abstract
The pursuit of affordable biofuels necessitates continuous refinement of valorization strategies, focusing on cost-effective feedstocks, accessible bioprocessing, and high-quality products. High energy input required during various stages, including pretreatment, post-pretreatment, and methanogenesis arrest, impeded the economic lignocellulose-derived biofuels production from anaerobic digestion (AD). Addressing this challenge, an upstream process integrating synergistic alkali pretreatment and arrested AD was proposed. Results demonstrated that an optimum reactor pH 10 yielded a volatile fatty acids (VFA) titer of 3.6 gCOD/L, only 23% lower than using methanogenesis inhibitor. The study further explored the interplay between initial pH, cell viability/functionality, and VFA production by assessing cell viability and cell population demographics. This integrated approach demonstrated a VFA yield of 364 gVFA/kgTSsubstrate at a cost of just USD 0.2/kgVFA, encompassing post-pretreatment and methanogenesis arrest, which underscores the viability of combining pretreatment and methanogenesis arrest for cost effective and scalable biofuels production.
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Affiliation(s)
- Jiachen Sun
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117576, Singapore
| | - Le Zhang
- Department of Resources and Environment, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; Energy and Environmental Sustainability Solutions for Megacities (E2S2) Phase II, Campus for Research Excellence and Technological Enterprise (CREATE), 138602, Singapore
| | - Kai-Chee Loh
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117576, Singapore; Energy and Environmental Sustainability Solutions for Megacities (E2S2) Phase II, Campus for Research Excellence and Technological Enterprise (CREATE), 138602, Singapore.
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12
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Lago A, Greses S, Aboudi K, Moreno I, González-Fernández C. Effect of decoupling hydraulic and solid retention times on carbohydrate-rich residue valorization into carboxylic acids. Sci Rep 2023; 13:20590. [PMID: 37996698 PMCID: PMC10667524 DOI: 10.1038/s41598-023-48097-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 11/22/2023] [Indexed: 11/25/2023] Open
Abstract
This research assessed the effect of decoupling hydraulic retention time (HRT) and solid retention time (SRT) on the production of volatile fatty acids (VFAs) via anaerobic fermentation of beet molasses. The performance of a continuous stirred tank reactor (CSTR, STR = HTR = 30 days) and two anaerobic sequencing batch reactors (AnSBR) with decoupled STR (30 days) and HRT (20 and 10 days) was compared. Previously, a temperature study in batch reactors (25, 35, and 55 °C) revealed 25 °C as the optimal temperature to maximize the VFAs yield and the long-chain VFAs (> C4) production, being selected for the continuous reactors operation. An HRT of 20 days in AnSBR led to an enhancement in bioconversion efficiency into VFAs (55.5% chemical oxygen demand basis) compared to the CSTR (34.9%). In contrast, the CSTR allowed the production of valuable caproic acid (25.4% vs 4.1% w/w of total VFAs in AnSBR). Decreasing further the HRT to 10 days in AnSBR was detrimental in terms of bioconversion efficiency (21.7%) due to primary intermediates (lactate) accumulation. By decoupling HRT and SRT, VFAs were maximized, revealing HRT as an effective tool to drive specific conversion routes (butyrate- or lactate-fermentation).
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Affiliation(s)
- Adrián Lago
- Biotechnological Processes Unit, IMDEA Energy, Avda. Ramón de la Sagra 3, 28935, Móstoles, Madrid, Spain
- Thermochemical Processes Unit, IMDEA Energy, Avda. Ramón de la Sagra 3, 28935, Móstoles, Madrid, Spain
| | - Silvia Greses
- Biotechnological Processes Unit, IMDEA Energy, Avda. Ramón de la Sagra 3, 28935, Móstoles, Madrid, Spain
| | - Kaoutar Aboudi
- Biotechnological Processes Unit, IMDEA Energy, Avda. Ramón de la Sagra 3, 28935, Móstoles, Madrid, Spain
- Department of Chemical Engineering and Food Technology, Faculty of Sciences (Wine and Agri-Food Research Institute-IVAGRO and International Campus of Excellence-ceiA3), University of Cádiz, Republic Saharawi Avenue, P.O. Box No. 40, 11510, Puerto Real, Cádiz, Spain
| | - Inés Moreno
- Thermochemical Processes Unit, IMDEA Energy, Avda. Ramón de la Sagra 3, 28935, Móstoles, Madrid, Spain
- Chemical and Environmental Engineering Group, ESCET, Rey Juan Carlos University, 28933, Móstoles, Madrid, Spain
| | - Cristina González-Fernández
- Biotechnological Processes Unit, IMDEA Energy, Avda. Ramón de la Sagra 3, 28935, Móstoles, Madrid, Spain.
- Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, University of Valladolid, Dr. Mergelina, S/N, 47011, Valladolid, Spain.
- Institute of Sustainable Processes, Dr. Mergelina, S/N, 47011, Valladolid, Spain.
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13
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Kopperi H, Venkata Mohan S. Catalytic hydrothermal deoxygenation of sugarcane bagasse for energy dense bio-oil and aqueous fraction acidogenesis for biohydrogen production. BIORESOURCE TECHNOLOGY 2023; 379:128954. [PMID: 36963697 DOI: 10.1016/j.biortech.2023.128954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/18/2023] [Accepted: 03/21/2023] [Indexed: 05/03/2023]
Abstract
The study focuses on the effective conversion of sugarcane bagasse (SCB) by catalytic deoxygenation using various alkali and metal-based catalysts under N2 pressure employing water as solvent. The specific influence of catalyst over bio-crude yields (bio-oil and aqueous fraction) including energy recovery ratio was explored. The optimum catalytic condition (Ru/C) resulted in ∼ 70% of bio-crude and 28% of bio-oil with an improved HHV (31.6 MJ/kg) having 11.6% of aliphatic/aromatic hydrocarbons (C10-C20) which can be further upgraded to drop-in fuels. The biocrude composed of 44% of aqueous soluble organic fraction (HTL-AF). Further, the carbon-rich HTL-AF was valorized through acidogenic fermentation to yield biohydrogen (Bio-H2). The maximum bio-H2 production of 201 mL/g of TOC conversion (K2CO3 catalyst) was observed with 7.7 g/L of VFA. The SCB was valorized in a biorefinery design with the production of fuels and chemical intermediates in a circular chemistry approach.
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Affiliation(s)
- Harishankar Kopperi
- Bioengineering and Environmental Sciences (BEES) Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - S Venkata Mohan
- Bioengineering and Environmental Sciences (BEES) Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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14
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Puliafito SE. Civil aviation emissions in Argentina. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 869:161675. [PMID: 36669658 DOI: 10.1016/j.scitotenv.2023.161675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 12/28/2022] [Accepted: 01/13/2023] [Indexed: 06/17/2023]
Abstract
The impact of aviation on climate change is reflected in increasing emissions of CO2 and other pollutants from fuel burning emitted at high altitudes, representing 2.9 % of total Greenhouse gases (GHG) emissions in 2019. However, mitigations options for decarbonization of aviation are difficult to implement given operational safety, technology maturity, energy density and other constraints. One alternative for mitigation is the use of certified sustainable aviation fuel (SAF) with lower carbon intensity than conventional jet fuel (CJF). This research presents an inventory of Argentine civil aviation emissions for its domestic and international flights, and analyzes the possibility of supplying SAF as a mitigation strategy given its abundant biomass production. Argentine aviation activity is presented as a monthly 4D (latitude, longitude, altitude and time) spatial inventory for the interval 2001-2021, based on origin and destination city pairs, aircraft types and airlines. Fuel consumption and pollutant emissions were calculated for landing-and-take-off and cruise phases. Monthly domestic ranged from 67 to 179 kt CO2eq (2001-2019). Annual peak values occurred in 2019 consuming 560 kt CJF and direct emitting of 1.77 Mt CO2eq. While Revenue-Passenger-Kilometer (RPK) grew almost 4 times (4.18 × 109 in 2001 to 16.42 × 109 in 2019), the number of flights changed only 1.5 times (from 98,000 in 2002 to 152,000 in 2019). The main efficiency indexes varied from 97 t CJF/RPK, 308 gCO2eq/RPK to 34 t CJF/RPK, 107 gCO2eq/RPK between 2001 and 2019, respectively, showing an average annual improvement of 3.5 % due to partial fleet renewal, especially from 2015 onwards. Emissions of other pollutants for 2019 reached total values of CO 14.14 kt; NOx 6.77 kt; PM tot 55.12 kt. For the period 2001-2019, international aviation consumed between 1 Mt - 1.5 Mt CJF, directly emitting between 3.30 and 4.80 Mt of CO2eq; RPKs went from 6.234 × 109 to 20.524 × 109; the efficiency indices ranged from 529 to 240 gCO2eq/RPK. The most important changes occurred with an optimization of routes and number of flights and the replacement of the four-engines (B747, A380) by more efficient twin-engines (B777, A330) aircraft. Argentina is not required to any offsetting regulatory program due to its small aviation market (approx. 0.22 % global market in 2019), nor has to date certified SAF production pathways, nevertheless it has potential for SAF availability based on actual biofuels production (ethanol, biodiesel and soybean oil) and biomass feedstock's existences. In this sense this studies proposes that 2019 domestic fuel consumption could be supplied using 79 % exportable amounts of sugarcane ethanol (257 ± 53 kt) (by Ethanol to Jet ETJ) and 34 % of exportable soybean oil (1079 ± 160 kt) (by hydroprocessed esters and fatty acids- HEFA) pathways. For this scenario average GHG emissions reached 1.321 ± 0.115 Mt CO2eq; which would imply a 62 % of the current emission value using CJF (2.17Mt CO2eq), or savings of about 838 kt CO2eq (38 %). At the 2019 level of harvest and biofuel production, up to 1.4 Mt of SAF could be produced from sugarcane ethanol/ETJ and soybean oil/HEFA mitigating up to 1.8 MtCO2eq. A 35 kt CO2eq annual sectoral national mitigation strategy could be reached by using 14 kt of SAF.
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Affiliation(s)
- S Enrique Puliafito
- Argentine National Technological University (GEAA UTN / CONICET), Argentina.
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15
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Abstract
Combustion is a reactive oxidation process that releases energy bound in chemical compounds used as fuels─energy that is needed for power generation, transportation, heating, and industrial purposes. Because of greenhouse gas and local pollutant emissions associated with fossil fuels, combustion science and applications are challenged to abandon conventional pathways and to adapt toward the demand of future carbon neutrality. For the design of efficient, low-emission processes, understanding the details of the relevant chemical transformations is essential. Comprehensive knowledge gained from decades of fossil-fuel combustion research includes general principles for establishing and validating reaction mechanisms and process models, relying on both theory and experiments with a suite of analytic monitoring and sensing techniques. Such knowledge can be advantageously applied and extended to configure, analyze, and control new systems using different, nonfossil, potentially zero-carbon fuels. Understanding the impact of combustion and its links with chemistry needs some background. The introduction therefore combines information on exemplary cultural and technological achievements using combustion and on nature and effects of combustion emissions. Subsequently, the methodology of combustion chemistry research is described. A major part is devoted to fuels, followed by a discussion of selected combustion applications, illustrating the chemical information needed for the future.
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16
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Chu N, Jiang Y, Liang Q, Liu P, Wang D, Chen X, Li D, Liang P, Zeng RJ, Zhang Y. Electricity-Driven Microbial Metabolism of Carbon and Nitrogen: A Waste-to-Resource Solution. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:4379-4395. [PMID: 36877891 DOI: 10.1021/acs.est.2c07588] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Electricity-driven microbial metabolism relies on the extracellular electron transfer (EET) process between microbes and electrodes and provides promise for resource recovery from wastewater and industrial discharges. Over the past decades, tremendous efforts have been dedicated to designing electrocatalysts and microbes, as well as hybrid systems to push this approach toward industrial adoption. This paper summarizes these advances in order to facilitate a better understanding of electricity-driven microbial metabolism as a sustainable waste-to-resource solution. Quantitative comparisons of microbial electrosynthesis and abiotic electrosynthesis are made, and the strategy of electrocatalyst-assisted microbial electrosynthesis is critically discussed. Nitrogen recovery processes including microbial electrochemical N2 fixation, electrocatalytic N2 reduction, dissimilatory nitrate reduction to ammonium (DNRA), and abiotic electrochemical nitrate reduction to ammonia (Abio-NRA) are systematically reviewed. Furthermore, the synchronous metabolism of carbon and nitrogen using hybrid inorganic-biological systems is discussed, including advanced physicochemical, microbial, and electrochemical characterizations involved in this field. Finally, perspectives for future trends are presented. The paper provides valuable insights on the potential contribution of electricity-driven microbial valorization of waste carbon and nitrogen toward a green and sustainable society.
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Affiliation(s)
- Na Chu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong Jiang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Qinjun Liang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Panpan Liu
- School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China
| | - Donglin Wang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Xueming Chen
- Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, College of Environment and Safety Engineering, Fuzhou University, Fuzhou 350116, China
| | - Daping Li
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Peng Liang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, PR China
| | - Raymond Jianxiong Zeng
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yifeng Zhang
- Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark
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17
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Kaha M, Noda M, Maeda Y, Kaneko Y, Yoshino T, Tanaka T. Characterization of oil body-associated proteins obtained from oil bodies with different sizes in oleaginous diatom Fistulifera solaris. J Biosci Bioeng 2023; 135:359-368. [PMID: 36935336 DOI: 10.1016/j.jbiosc.2023.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/08/2023] [Accepted: 01/13/2023] [Indexed: 03/19/2023]
Abstract
Oil body-associated proteins from the oleaginous diatom Fistulifera solaris were identified by proteomic analysis of oil bodies of various sizes (small, middle, and large) by time-dependent culturing upon nutrient-starvation at 36, 96 and 168 h. This diatom strain has the capability to accumulate neutral lipids and triacylglycerol. Liquid chromatography-tandem mass spectrometry analysis revealed 662 proteins in all oil body sizes. Among these, 132 proteins were predicted to be localized to the endoplasmic reticulum. Seventeen proteins that exhibited a positive correlation with gene expression and the oil body size were selected as novel candidates for oil body-associated proteins. Among the 17 protein candidates, two proteins encoded by fso:g8246 and fso:g10200 were confirmed to be localized on the surface of the oil body and endoplasmic reticulum. A protein encoded by fso:g2514, which is involved in sterol biosynthesis, was also identified. This protein was likely to localize to mitochondria; however, inhibitor assays suggested that it might play a role in lipid degradation. Our work provides new insights into the proteomics of microalgae and provides a valuable strategy for boosting lipid productivity in microalgae.
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Affiliation(s)
- Marshila Kaha
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Masayoshi Noda
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Yoshiaki Maeda
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan; Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8572, Japan
| | - Yumika Kaneko
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Tomoko Yoshino
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Tsuyoshi Tanaka
- Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
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18
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Bell DC, Feldhausen J, Spieles AJ, Boehm RC, Heyne JS. Limits of identification using VUV spectroscopy applied to C8H18 isomers isolated by GC×GC. Talanta 2023; 258:124451. [PMID: 36931058 DOI: 10.1016/j.talanta.2023.124451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023]
Abstract
The vacuum ultraviolet detector for gas chromatography can be used to identify structural differences between isomers with similar chromatographic elution times, which adds detail to characterization, valuable for prescreening of sustainable aviation fuel candidates. Although this capability has been introduced elsewhere, vacuum ultraviolet spectroscopy for saturated hydrocarbons has been examined minimally, as the similarities between their spectra are much less significant than their aromatic counterparts. The fidelity with which structural differences can be identified has been unclear. In this work, all possible structural isomers of C8H18 are measured and determined to have unambiguously unique vacuum ultraviolet spectra. Using a statistically based residual comparison approach, the concentration limits at which the spectral differences are interpretable are tested in both a controlled study and a real fuel application. The concentration limit at which the spectral differences between C8H18 isomers are unambiguous is below 0.40% by mass and less than 0.20% with human discretion in our experimental configuration.
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Affiliation(s)
- David C Bell
- Bioproduct Sciences and Engineering Laboratory, School of Engineering and Applied Science, Washington State University, Richland, WA, 99354, USA.
| | - John Feldhausen
- Bioproduct Sciences and Engineering Laboratory, School of Engineering and Applied Science, Washington State University, Richland, WA, 99354, USA
| | - Aaron J Spieles
- Department of Mechanical and Aerospace Engineering, University of Dayton, 300 College Park, Dayton, OH, 45469, USA
| | - Randall C Boehm
- Bioproduct Sciences and Engineering Laboratory, School of Engineering and Applied Science, Washington State University, Richland, WA, 99354, USA
| | - Joshua S Heyne
- Bioproduct Sciences and Engineering Laboratory, School of Engineering and Applied Science, Washington State University, Richland, WA, 99354, USA; Energy Processes and Materials Division, Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
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19
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Current Status and Prospects of Valorizing Organic Waste via Arrested Anaerobic Digestion: Production and Separation of Volatile Fatty Acids. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation9010013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Volatile fatty acids (VFA) are intermediary degradation products during anaerobic digestion (AD) that are subsequently converted to methanogenic substrates, such as hydrogen (H2), carbon dioxide (CO2), and acetic acid (CH3COOH). The final step of AD is the conversion of these methanogenic substrates into biogas, a mixture of methane (CH4) and CO2. In arrested AD (AAD), the methanogenic step is suppressed to inhibit VFA conversion to biogas, making VFA the main product of AAD, with CO2 and H2. VFA recovered from the AAD fermentation can be further converted to sustainable biofuels and bioproducts. Although this concept is known, commercialization of the AAD concept has been hindered by low VFA titers and productivity and lack of cost-effective separation methods for recovering VFA. This article reviews the different techniques used to rewire AD to AAD and the current state of the art of VFA production with AAD, emphasizing recent developments made for increasing the production and separation of VFA from complex organic materials. Finally, this paper discusses VFA production by AAD could play a pivotal role in producing sustainable jet fuels from agricultural biomass and wet organic waste materials.
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20
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Miller JH, Tifft SM, Wiatrowski MR, Benavides PT, Huq NA, Christensen ED, Alleman T, Hays C, Luecke J, Kneucker CM, Haugen SJ, Sànchez i Nogué V, Karp EM, Hawkins TR, Singh A, Vardon DR. Screening and evaluation of biomass upgrading strategies for sustainable transportation fuel production with biomass-derived volatile fatty acids. iScience 2022; 25:105384. [DOI: 10.1016/j.isci.2022.105384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 09/26/2022] [Accepted: 10/14/2022] [Indexed: 11/09/2022] Open
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21
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Intensification of Acidogenic Fermentation for the Production of Biohydrogen and Volatile Fatty Acids—A Perspective. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8070325] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Utilising ‘wastes’ as ‘resources’ is key to a circular economy. While there are multiple routes to waste valorisation, anaerobic digestion (AD)—a biochemical means to breakdown organic wastes in the absence of oxygen—is favoured due to its capacity to handle a variety of feedstocks. Traditional AD focuses on the production of biogas and fertiliser as products; however, such low-value products combined with longer residence times and slow kinetics have paved the way to explore alternative product platforms. The intermediate steps in conventional AD—acidogenesis and acetogenesis—have the capability to produce biohydrogen and volatile fatty acids (VFA) which are gaining increased attention due to the higher energy density (than biogas) and higher market value, respectively. This review hence focusses specifically on the production of biohydrogen and VFAs from organic wastes. With the revived interest in these products, a critical analysis of recent literature is needed to establish the current status. Therefore, intensification strategies in this area involving three main streams: substrate pre-treatment, digestion parameters and product recovery are discussed in detail based on literature reported in the last decade. The techno-economic aspects and future pointers are clearly highlighted to drive research forward in relevant areas.
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22
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Wang M, Zhang X, Huang H, Qin Z, Liu C, Chen Y. Amino Acid Configuration Affects Volatile Fatty Acid Production during Proteinaceous Waste Valorization: Chemotaxis, Quorum Sensing, and Metabolism. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:8702-8711. [PMID: 35549463 DOI: 10.1021/acs.est.1c07894] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
During proteinaceous waste valorization to produce volatile fatty acids (VFAs), protein needs to be hydrolyzed to amino acids (AAs), but the effects of the configuration of AAs on their biotransformation and VFA production have not been investigated. In this study, more residual d-AAs than their corresponding l-AAs were observed after VFAs were produced from kitchen waste in a pilot-scale bioreactor. For all AAs investigated, the VFA production from d-AAs was lower than that from corresponding l-AAs. The metagenomics and metaproteomics analyses revealed that the l-AA fermentation system exhibited greater bacterial chemotaxis and quorum sensing (QS) than d-AAs, which benefited the establishment of functional microorganisms (such as Clostridium, Sedimentibacter, and Peptoclostridium) and expression of functional proteins (e.g., substrate transportation cofactors, l-AA dehydrogenase, and acidogenic proteins). In addition, d-AAs need to be racemized to l-AAs before being metabolized, and the difference of VFA production between d-AAs and l-AAs decreased with the increase of racemization activity. The findings of the AA configuration affecting bacterial chemotaxis and QS, which altered microorganism communities and functional protein expression, provided a new insight into the reasons for higher l-AA metabolism than d-AAs and more d-AAs left during VFA production from proteinaceous wastes.
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Affiliation(s)
- Meng Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Xuemeng Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Haining Huang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Zhiyi Qin
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Chao Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yinguang Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
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23
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Varghese VK, Poddar BJ, Shah MP, Purohit HJ, Khardenavis AA. A comprehensive review on current status and future perspectives of microbial volatile fatty acids production as platform chemicals. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 815:152500. [PMID: 34968606 DOI: 10.1016/j.scitotenv.2021.152500] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/26/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
Volatile fatty acids (VFA), the secondary metabolite of microbial fermentation, are used in a wide range of industries for production of commercially valuable chemicals. In this review, the fermentative production of VFAs by both pure as well mixed microbial cultures is highlighted along with the strategies for enhancing the VFA production through innovations in existing approaches. Role of conventionally applied tools for the optimization of operational parameters such as pH, temperature, retention time, organic loading rate, and headspace pressure has been discussed. Furthermore, a comparative assessment of above strategies on VFA production has been done with alternate developments such as co-fermentation, substrate pre-treatment, and in situ removal from fermented broth. The review also highlights the applications of different bioreactor geometries in the optimum production of VFAs and how metagenomic tools could provide a detailed insight into the microbial communities and their functional attributes that could be subjected to metabolic engineering for the efficient production of VFAs.
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Affiliation(s)
- Vijay K Varghese
- Environmental Biotechnology and Genomics Division (EBGD), CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur 440020, India
| | - Bhagyashri J Poddar
- Environmental Biotechnology and Genomics Division (EBGD), CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur 440020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Maulin P Shah
- Industrial Waste Water Research Lab, Division of Applied and Environmental Microbiology Lab, Enviro Technology Ltd., Ankleshwar 393002, India
| | - Hemant J Purohit
- Environmental Biotechnology and Genomics Division (EBGD), CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur 440020, India
| | - Anshuman A Khardenavis
- Environmental Biotechnology and Genomics Division (EBGD), CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur 440020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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24
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Adaptive Initial Sizing Method and Safety Assessment for Hybrid-Electric Regional Aircraft. AEROSPACE 2022. [DOI: 10.3390/aerospace9030150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In the wake of many climate-friendly initiatives, the aviation sector must become more sustainable. A potential path for regional airliners could be the installation of hybrid-electric powertrains. In this work, a conceptual study design of various powertrain architectures is conducted. This helps the designer to quickly generate approximate numbers on the basic characteristics of new aircraft configurations. These results can be used to advance subsystems modeling or improve the starting values in the following preliminary aircraft design. After the selection of representative architectures, reasonable technological assumptions were gathered, ranging between a conservative and an optimistic scenario. This was done for powertrain components, various energy storage concepts and structural and aerodynamic changes. The initial sizing method was developed by building two interconnected sizing iteration loops. In addition, a safety assessment was integrated due to the many unconventional components in the powertrain’s setup. The results show that the fuel consumption of a conventional aircraft is not undercut with a hybrid-electric powertrain aircraft based on conservative technological assumptions. In the optimistic scenario, however, selected powertrain architectures show a significant drop in fuel consumption when compared to the conventional one. Furthermore, the use of synergistic effects and systematic powertrain optimizations can decrease the fuel consumption even further. In conclusion, it was shown that this initial sizing method can calculate entire hybrid-electric aircraft designs on a conceptual level. The results can quickly present trends that are reasonable and helpful. In addition, the safety assessment first gives evidence about which levels of safety have to be considered for the different components in the development of hybrid-electric powertrains.
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25
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Guo Y, Qin Y, Liu H, Wang H, Han J, Zhu X, Ge Q. CeO2 Facet-Dependent Surface Reactive Intermediates and Activity during Ketonization of Propionic Acid. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Yonghua Guo
- Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yuyao Qin
- Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Huixian Liu
- Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Hua Wang
- Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Jinyu Han
- Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xinli Zhu
- Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Qingfeng Ge
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Illinois 62901, United States
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26
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Miller JH, Hafenstine GR, Nguyen HH, Vardon DR. Kinetics and Reactor Design Principles of Volatile Fatty Acid Ketonization for Sustainable Aviation Fuel Production. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jacob H. Miller
- Catalytic Carbon Transformation and Scaleup Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Glenn R. Hafenstine
- Catalytic Carbon Transformation and Scaleup Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Hannah H. Nguyen
- Catalytic Carbon Transformation and Scaleup Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Derek R. Vardon
- Catalytic Carbon Transformation and Scaleup Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
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27
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Establishing Butyribacterium methylotrophicum as a platform organism for the production of biocommodities from liquid C1 metabolites. Appl Environ Microbiol 2022; 88:e0239321. [PMID: 35138930 DOI: 10.1128/aem.02393-21] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Using the Wood-Ljungdahl pathway, acetogens can non-photosynthetically fix gaseous C1 molecules preventing them from entering the atmosphere. Many acetogens can also grow on liquid C1 compounds such as formate and methanol which avoid the storage and mass transfer issues associated with gaseous C1 compounds. Substrate redox state also plays an important role in acetogen metabolism and can modulate products formed by these organisms. Butyribacterium methylotrophicum is an acetogen known for its ability to synthesize longer-chained molecules such as butyrate and butanol, which have significantly higher value than acetate or ethanol, from one-carbon (C1) compounds. We explored B. methylotrophicum's C1 metabolism by varying substrates, substrate concentrations and substrate feeding strategies to improve four-carbon product titers. Our results showed that formate utilization by B. methylotrophicum favored acetate production and methanol utilization favored butyrate production. Co-feeding of both substrates produced a high butyrate titer of 4 g/L when methanol was supplied in excess to formate. Testing of formate feeding strategies, in the presence of methanol, led to further increases in the butyrate to acetate ratio. Mixotrophic growth of liquid and gaseous C1 substrates expanded the B. methylotrophicum product profile as ethanol, butanol and lactate were produced in these conditions. We also showed that B. methylotrophicum is capable of producing caproate, a six-carbon product, presumably through chain elongation cycles of the reverse β-oxidation pathway. Furthermore, we demonstrated butanol production via heterologous gene expression. Our results indicate that both selection of appropriate substrates and genetic engineering play important roles in determining titers of desired products. Importance. Acetogenic bacteria can fix single-carbon (C1) molecules. However, improvements are needed to overcome poor product titers. Butyribacterium methylotrophicum can naturally ferment C1 compounds into longer-chained molecules such as butyrate alongside traditional acetate. Here we show that B. methylotrophicum can effectively grow on formate and methanol to produce high titers of butyrate. We improved ratios of butyrate to acetate through adjusted formate feeding strategies and produced higher value six-carbon molecules. We also expanded the B. methylotrophicum product profile with the addition of C1 gases as the organism produced ethanol, butanol and lactate. Furthermore, we developed a transformation protocol for B. methylotrophicum to facilitate genetic engineering of this organism for the circular bioeconomy.
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28
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Chen C, Zhang X, Liu C, Wu Y, Zheng G, Chen Y. Advances in downstream processes and applications of biological carboxylic acids derived from organic wastes. BIORESOURCE TECHNOLOGY 2022; 346:126609. [PMID: 34954356 DOI: 10.1016/j.biortech.2021.126609] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
Recovering carboxylic acids derived from organic wastes from fermentation broth is challenging. To provide a reference for future study and industrial application, this review summarized recent advances in recovery technologies of carboxylic acids including precipitation, extraction, adsorption, membrane-based processes, etc. Meanwhile, applications of recovered carboxylic acids are summarized as well to help choose suitable downstream processes according to purity requirement. Integrated processes are required to remove the impurities from the complicated fermentation broth, at the cost of loss and expense. Compared with chemical processes, biological synthesis is better options due to low requirements for the substrates. Generally, the use of toxic agents, consumption of acid/alkaline and membrane fouling hamper the sustainability and scale-up of the downstream processes. Future research on novel solvents and materials will facilitate the sustainable recovery and reduce the cost of the downstream processes.
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Affiliation(s)
- Chuang Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Xuemeng Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Chao Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yang Wu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Guanghong Zheng
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.
| | - Yinguang Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.
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29
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Holtzapple MT, Wu H, Weimer PJ, Dalke R, Granda CB, Mai J, Urgun-Demirtas M. Microbial communities for valorizing biomass using the carboxylate platform to produce volatile fatty acids: A review. BIORESOURCE TECHNOLOGY 2022; 344:126253. [PMID: 34728351 DOI: 10.1016/j.biortech.2021.126253] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/23/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
The carboxylate platform employs a diverse microbial consortium of anaerobes in which the methanogens are inhibited. Nearly all biomass components are digested to a mixture of C1-C8 monocarboxylic acids and their corresponding salts. The methane-arrested anaerobic digestion proceeds readily without needing to sterilize biomass or equipment. It accepts a wide range of feedstocks (e.g., agricultural residues, municipal solid waste, sewage sludge, animal manure, food waste, algae, and energy crops), and produces high product yields. This review highlights several important aspects of the platform, including its thermodynamic underpinnings, influences of inoculum source and operating conditions on product formation, and downstream chemical processes that convert the carboxylates to hydrocarbon fuels and oxygenated chemicals. This review further establishes the carboxylate platform as a viable and economical route to industrial biomass utilization.
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Affiliation(s)
- Mark T Holtzapple
- Department of Chemical Engineering, Texas A&M University, College Station, TX 77843-3122, USA
| | - Haoran Wu
- Department of Chemical Engineering, Texas A&M University, College Station, TX 77843-3122, USA; Applied Materials Division, Argonne National Laboratory, 9700 S Cass Ave, Lemont, IL 60439, USA
| | - Paul J Weimer
- Department of Bacteriology, University of Wisconsin at Madison, Madison, WI 53706, USA
| | - Rachel Dalke
- Applied Materials Division, Argonne National Laboratory, 9700 S Cass Ave, Lemont, IL 60439, USA
| | - Cesar B Granda
- Department of Chemical Engineering, Texas A&M University, College Station, TX 77843-3122, USA
| | - Jesse Mai
- Applied Materials Division, Argonne National Laboratory, 9700 S Cass Ave, Lemont, IL 60439, USA
| | - Meltem Urgun-Demirtas
- Applied Materials Division, Argonne National Laboratory, 9700 S Cass Ave, Lemont, IL 60439, USA.
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