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Ghosh AB, Atta A. Mixing Enhancement of Newtonian Liquids in a Curvature Induced Split and Recombine Micromixer. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- Amritendu Bhuson Ghosh
- Multiscale Computational Fluid Dynamics (mCFD) Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India
| | - Arnab Atta
- Multiscale Computational Fluid Dynamics (mCFD) Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India
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Hafeez S, Al-Salem SM, Bansode A, Villa A, Dimitratos N, Manos G, Constantinou A. Computational Investigation of Microreactor Configurations for Hydrogen Production from Formic Acid Decomposition Using a Pd/C Catalyst. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04128] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sanaa Hafeez
- Department of Chemical Engineering, University College London, London WCIE 7JE, UK
| | - Sultan M. Al-Salem
- Environment & Life Sciences Research Centre, Kuwait Institute for Scientific Research, P.O. Box: 24885, Safat 13109, Kuwait
| | - Atul Bansode
- Catalysis Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, Netherlands
| | - Alberto Villa
- Dipartimento di Chimica, Universitá degli Studi di Milano, via Golgi, 20133 Milan, Italy
| | - Nikolaos Dimitratos
- Dipartimento di Chimica Industriale e dei Materiali, ALMA MATER STUDIORUM Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - George Manos
- Department of Chemical Engineering, University College London, London WCIE 7JE, UK
| | - Achilleas Constantinou
- Department of Chemical Engineering, Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, 3036 Limassol, Cyprus
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Hafeez S, Harkou E, Al-Salem SM, Goula MA, Dimitratos N, Charisiou ND, Villa A, Bansode A, Leeke G, Manos G, Constantinou A. Hydrogenation of carbon dioxide (CO2) to fuels in microreactors: a review of set-ups and value-added chemicals production. REACT CHEM ENG 2022. [DOI: 10.1039/d1re00479d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A review of CO2 hydrogenation to fuels and value-added chemicals in microreactors.
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Affiliation(s)
- Sanaa Hafeez
- Department of Chemical Engineering, University College London, London WCIE 7JE, UK
| | - Eleana Harkou
- Department of Chemical Engineering, Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, 3036 Limassol, Cyprus
| | - Sultan M. Al-Salem
- Environment & Life Sciences Research Centre, Kuwait Institute for Scientific Research, P.O. Box: 24885, Safat 13109, Kuwait
| | - Maria A. Goula
- Laboratory of Alternative Fuels and Environmental Catalysis (LAFEC), Department of Chemical Engineering, University of Western Macedonia, GR-50100, Greece
| | - Nikolaos Dimitratos
- Dipartimento di Chimica Industriale e dei Materiali, ALMA MATER STUDIORUM Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Nikolaos D. Charisiou
- Laboratory of Alternative Fuels and Environmental Catalysis (LAFEC), Department of Chemical Engineering, University of Western Macedonia, GR-50100, Greece
| | - Alberto Villa
- Dipartimento di Chimica, Universitá degli Studi di Milano, via Golgi, 20133 Milan, Italy
| | - Atul Bansode
- Catalysis Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, Netherlands
| | - Gary Leeke
- School of Chemical Engineering, University of Birmingham, B15 2TT, UK
| | - George Manos
- Department of Chemical Engineering, University College London, London WCIE 7JE, UK
| | - Achilleas Constantinou
- Department of Chemical Engineering, Cyprus University of Technology, 57 Corner of Athinon and Anexartisias, 3036 Limassol, Cyprus
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Synergistic effect of micro-meso-macroporous system and structural Al amount of ZSM-5 for intensification of light olefins production in n-hexane cracking. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Decomposition of Additive-Free Formic Acid Using a Pd/C Catalyst in Flow: Experimental and CFD Modelling Studies. Catalysts 2021. [DOI: 10.3390/catal11030341] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The use of hydrogen as a renewable fuel has gained increasing attention in recent years due to its abundance and efficiency. The decomposition of formic acid for hydrogen production under mild conditions of 30 °C has been investigated using a 5 wt.% Pd/C catalyst and a fixed bed microreactor. Furthermore, a comprehensive heterogeneous computational fluid dynamic (CFD) model has been developed to validate the experimental data. The results showed a very good agreement between the CFD studies and experimental work. Catalyst reusability studies have shown that after 10 reactivation processes, the activity of the catalyst can be restored to offer the same level of activity as the fresh sample of the catalyst. The CFD model was able to simulate the catalyst deactivation based on the production of the poisoning species CO, and a sound validation was obtained with the experimental data. Further studies demonstrated that the conversion of formic acid enhances with increasing temperature and decreasing liquid flow rate. Moreover, the CFD model established that the reaction system was devoid of any internal and external mass transfer limitations. The model developed can be used to successfully predict the decomposition of formic acid in microreactors for potential fuel cell applications.
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Eze WU, Madufor IC, Onyeagoro GN, Obasi HC, Ugbaja MI. Study on the effect of Kankara zeolite-Y-based catalyst on the chemical properties of liquid fuel from mixed waste plastics (MWPs) pyrolysis. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-020-03116-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Hafeez S, Aristodemou E, Manos G, Al-Salem SM, Constantinou A. Modelling of packed bed and coated wall microreactors for methanol steam reforming for hydrogen production. RSC Adv 2020; 10:41680-41692. [PMID: 35516550 PMCID: PMC9057832 DOI: 10.1039/d0ra06834a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 11/02/2020] [Indexed: 11/29/2022] Open
Abstract
A Computational Fluid Dynamics (CFD) study has been conducted to assess the performance of packed bed and coated wall microreactors for the steam reforming of methanol with a CuO/ZnO/Al2O3 based catalyst (BASF F3-01). The results obtained were compared to experimental data from the literature to assess the validity and robustness of the models, and a good validation has been obtained. The performance of the packed bed and coated wall microreactors is similar at a constant reforming temperature. It was found that methanol conversion is enhanced with increasing temperature, residence time, steam to methanol ratio, and catalyst coating thickness. Furthermore, internal and external mass transfer phenomena were investigated using the models, and it was found that there were no internal and external mass transfer resistances for this reactor configuration. Further studies demonstrated that larger catalyst pellet sizes led to the presence of internal mass transfer resistance, which in turn causes lower methanol conversions. The CFD models have exhibited a sound agreement with the experimental data, hence they can be used to predict the steam reforming of methanol in microreactors. A Computational Fluid Dynamics (CFD) study has been conducted to assess the performance of packed bed and coated wall microreactors for the steam reforming of methanol with a CuO/ZnO/Al2O3 based catalyst (BASF F3-01).![]()
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Affiliation(s)
- Sanaa Hafeez
- Division of Chemical & Energy Engineering, School of Engineering, London South Bank University London SE1 0AA UK +44 (0)20 7815 7185
| | - Elsa Aristodemou
- Division of Chemical & Energy Engineering, School of Engineering, London South Bank University London SE1 0AA UK +44 (0)20 7815 7185
| | - George Manos
- Department of Chemical Engineering, University College London London WCIE 7JE UK
| | - S M Al-Salem
- Environment & Life Sciences Research Centre, Kuwait Institute for Scientific Research P. O. Box: 24885 Safat 13109 Kuwait
| | - Achilleas Constantinou
- Division of Chemical & Energy Engineering, School of Engineering, London South Bank University London SE1 0AA UK +44 (0)20 7815 7185.,Department of Chemical Engineering, University College London London WCIE 7JE UK.,Department of Chemical Engineering, Cyprus University of Technology 57 Corner of Athinon and Anexartisias 3036 Limassol Cyprus
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Hafeez S, Aristodemou E, Manos G, Al-Salem SM, Constantinou A. Computational fluid dynamics (CFD) and reaction modelling study of bio-oil catalytic hydrodeoxygenation in microreactors. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00102c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A computational fluid dynamics (CFD) model was derived and validated in order to investigate the hydrodeoxygenation reaction of 4-propylguaiacol, which is a lignin-derived compound present in bio-oil.
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Affiliation(s)
- Sanaa Hafeez
- Division of Chemical & Petroleum Engineering
- School of Engineering
- London South Bank University
- London SE1 0AA
- UK
| | - Elsa Aristodemou
- Division of Chemical & Petroleum Engineering
- School of Engineering
- London South Bank University
- London SE1 0AA
- UK
| | - George Manos
- Department of Chemical Engineering
- University College London
- London WCIE 7JE
- UK
| | - S. M. Al-Salem
- Environment & Life Sciences Research Centre
- Kuwait Institute for Scientific Research
- Safat 13109
- Kuwait
| | - Achilleas Constantinou
- Division of Chemical & Petroleum Engineering
- School of Engineering
- London South Bank University
- London SE1 0AA
- UK
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Li W, Xia F, Zhao S, Zhang M, Li W, Zhang J. Characterization of liquid–liquid mass transfer performance in a novel pore‐array intensified tube‐in‐tube microchannel. AIChE J 2019. [DOI: 10.1002/aic.16893] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Wenpeng Li
- School of Chemical Engineering and TechnologyTianjin University Tianjin China
| | - Fengshun Xia
- School of Chemical Engineering and TechnologyTianjin University Tianjin China
| | - Shuchun Zhao
- School of Chemical Engineering and TechnologyTianjin University Tianjin China
| | - Minqing Zhang
- School of Chemical Engineering and TechnologyTianjin University Tianjin China
| | - Wei Li
- School of Chemical Engineering and TechnologyTianjin University Tianjin China
| | - Jinli Zhang
- School of Chemical Engineering and TechnologyTianjin University Tianjin China
- School of Chemistry and Chemical EngineeringShihezi University Shihezi China
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Eze WU, Madufor IC, Onyeagoro GN, Obasi HC. The effect of Kankara zeolite-Y-based catalyst on some physical properties of liquid fuel from mixed waste plastics (MWPs) pyrolysis. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02806-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Al-Salem SM, Behbehani MH, Karam HJ, Al-Rowaih SF, Asiri FM. On the Kinetics of Degradation Reaction Determined Post Accelerated Weathering of Polyolefin Plastic Waste Blends. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16030395. [PMID: 30704142 PMCID: PMC6388198 DOI: 10.3390/ijerph16030395] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/20/2019] [Accepted: 01/21/2019] [Indexed: 11/16/2022]
Abstract
Polyolefin (PO) polymers constitute the majority of consumer plastic commodities. The reliance on such materials make it near imposable to avoid touching one in any given day. Therefore, the accumulation of plastic solid waste (PSW) in developed and developing societies alike requires immediate attention to manage and valorize this type of waste. In this work, PSW originating from real life sources and virgin linear low-density polyethylene (LLDPE) films were compounded in a mechanical recycling effort. The recycled blends constituted up to 100% (by weight) of the waste material. Accelerated weathering (aging) was conducted on the blends, reaching threshold limit of exposure to study the major changes occurring on the recycled blends. Thermogravimetry and differential scanning calorimetry (DSC) were used to determine their characteristics and applicability for future recycling using thermo-chemical treatment (TCT) methods. Analytical solution methods following the international committee of thermal analysis and calorimetry (ICTAC) were followed in conducting the measurements and kinetic calculations alike. A novel analytical mathematical solution model is also introduced to determine both the pre-exponential factor (Ao) and apparent activation energy (Ea) of the degradation reaction. The model proved to be a more accurate analysis tool, and the work in whole enabled the determination of future plans for using such waste components as a feedstock to thermal units.
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Affiliation(s)
- S M Al-Salem
- Environment & Life Sciences Research Centre, Kuwait Institute for Scientific Research, P.O. Box: 24885, Safat 13109, Kuwait.
| | - M H Behbehani
- Environment & Life Sciences Research Centre, Kuwait Institute for Scientific Research, P.O. Box: 24885, Safat 13109, Kuwait.
| | - H J Karam
- Environment & Life Sciences Research Centre, Kuwait Institute for Scientific Research, P.O. Box: 24885, Safat 13109, Kuwait.
| | - S F Al-Rowaih
- Environment & Life Sciences Research Centre, Kuwait Institute for Scientific Research, P.O. Box: 24885, Safat 13109, Kuwait.
| | - F M Asiri
- Environment & Life Sciences Research Centre, Kuwait Institute for Scientific Research, P.O. Box: 24885, Safat 13109, Kuwait.
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Gérardy R, Morodo R, Estager J, Luis P, Debecker DP, Monbaliu JCM. Sustaining the Transition from a Petrobased to a Biobased Chemical Industry with Flow Chemistry. Top Curr Chem (Cham) 2018; 377:1. [DOI: 10.1007/s41061-018-0222-3] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 10/27/2018] [Indexed: 12/16/2022]
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