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Fang W, Wang C, Liu Z, Wang L, Liu L, Li H, Xu S, Zheng A, Qin X, Liu L, Xiao FS. Physical mixing of a catalyst and a hydrophobic polymer promotes CO hydrogenation through dehydration. Science 2022; 377:406-410. [PMID: 35862543 DOI: 10.1126/science.abo0356] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
In many reactions restricted by water, selective removal of water from the reaction system is critical and usually requires a membrane reactor. We found that a simple physical mixture of hydrophobic poly(divinylbenzene) with cobalt-manganese carbide could modulate a local environment of catalysts for rapidly shipping water product in syngas conversion. We were able to shift the water-sorption equilibrium on the catalyst surface, leading to a greater proportion of free surface that in turn raised the rate of syngas conversion by nearly a factor of 2. The carbon monoxide conversion reached 63.5%, and 71.4% of the hydrocarbon products were light olefins at 250°C, outperforming poly(divinylbenzene)-free catalyst under equivalent reaction conditions. The physically mixed CoMn carbide/poly(divinylbenzene) catalyst was durable in the continuous test for 120 hours.
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Affiliation(s)
- Wei Fang
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Chengtao Wang
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.,Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Zhiqiang Liu
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics and Mathematics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Liang Wang
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lu Liu
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Hangjie Li
- Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Shaodan Xu
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Anmin Zheng
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics and Mathematics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Xuedi Qin
- Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Lujie Liu
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Feng-Shou Xiao
- Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.,Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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PTFE-Modified Mn-Co-Based Catalytic Ceramic Filters with H2O Resistance for Low-Temperature NH3-SCR. SUSTAINABILITY 2022. [DOI: 10.3390/su14095353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Mn-Co-based catalysts were loaded to ceramic filters element by impregnation for the coprocessing of dust and nitrogen oxide (NOx) in flue gas. The influence of the Mn/Co ratio and loading on the catalytic performance was investigated. The Mn-Co-based catalytic ceramic filter with a Mn/Co molar ratio of 2/1 can achieve 99% NO conversion by selective catalytic reduction of NOx with NH3 (NH3-SCR) in the temperature range of 100−180 °C, but its resistance to H2O was relatively poor. The filter element was modified by PTFE to improve the H2O resistance. After modification, the catalytic ceramic filter showed superior resistance to H2O and SO2 at low temperatures (100–180 °C) and satisfactory self-cleaning performance.
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Liuzzi D, Fernandez E, Perez S, Ipiñazar E, Arteche A, Fierro JLG, Viviente JL, Pacheco Tanaka DA, Rojas S. Advances in membranes and membrane reactors for the Fischer-Tropsch synthesis process for biofuel production. REV CHEM ENG 2020. [DOI: 10.1515/revce-2019-0067] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The biomass-to-liquid (BtL) process is a promising technology to obtain clean, liquid, second-generation biofuels and chemicals. The BtL process, which comprises several steps, is based upon the gasification of biomass and the catalytic transformation of the syngas that is obtained via the Fischer-Tropsch synthesis (FTS) reaction, producing a hydrocarbon pool known as syncrude. The FTS process is a well-established technology, and there are currently very large FTS plants operating worldwide that produce liquid fuels and hydrocarbons from natural gas (NG) (gas-to-liquids, GtL process) and coal (coal-to-liquids, CtL process). Due to the limited availability of local biomass, the size of the BtL plants should be downscaled compared to that of a GtL or CtL plant. Since the feasibility of the XtL (X refers to any energy source that can be converted to liquid, including coal, NG, biomass, municipal solid waste, etc.) processes is strongly influenced by the economies of scale, the viability of small-scale BtL plants can be compromised. An interesting approach to overcome this issue is to increase the productivity of the FTS process by developing reactors and catalysts with higher productivities to generate the desired product fraction. Recently, by integrating membrane reactors with the FTS process the gas feeding and separation unit have been demonstrated in a single reactor. In this review, the most significant achievements in the field of catalytic membrane reactors for the FTS process will be discussed. Different types of membranes and configurations of membrane reactors, including H2O separation and H2-feed distribution, among others, will be analyzed.
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Affiliation(s)
- Dalia Liuzzi
- Estructura y Reactividad , Institute of Catalysis and Petrochemistry (CSIC) , Marie Curie 2, 28049 Madrid , Spain
| | - Ekain Fernandez
- TECNALIA, Basque Research and Technology Alliance (BRTA) , Mikeletegi Pasealekua 2, 20009 Donostia-San Sebastián , Spain
| | - Susana Perez
- TECNALIA, Basque Research and Technology Alliance (BRTA) , Leonardo da Vinci 11 , 01510 Miñano , Spain
| | - Enrique Ipiñazar
- TECNALIA, Basque Research and Technology Alliance (BRTA) , Mikeletegi Pasealekua 2, 20009 Donostia-San Sebastián , Spain
| | - Amaya Arteche
- TECNALIA, Basque Research and Technology Alliance (BRTA) , Mikeletegi Pasealekua 2, 20009 Donostia-San Sebastián , Spain
| | - José Luís G. Fierro
- Estructura y Reactividad , Institute of Catalysis and Petrochemistry (CSIC) , Marie Curie 2, 28049 Madrid , Spain
| | - Jose Luis Viviente
- TECNALIA, Basque Research and Technology Alliance (BRTA) , Mikeletegi Pasealekua 2, 20009 Donostia-San Sebastián , Spain
| | - David Alfredo Pacheco Tanaka
- TECNALIA, Basque Research and Technology Alliance (BRTA) , Mikeletegi Pasealekua 2, 20009 Donostia-San Sebastián , Spain
| | - Sergio Rojas
- Estructura y Reactividad , Institute of Catalysis and Petrochemistry (CSIC) , Marie Curie 2, 28049 Madrid , Spain
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Deibert W, Ivanova ME, Baumann S, Guillon O, Meulenberg WA. Ion-conducting ceramic membrane reactors for high-temperature applications. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.08.016] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Qu Z, Hu S, Jiang H, Liu Y, Huang J, Xing W, Chen R. A Side-Stream Catalysis/Membrane Filtration System for the Continuous Liquid-Phase Hydrogenation of Phenol over Pd@CN to Produce Cyclohexanone. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b03043] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Zhengyan Qu
- State Key Laboratory of Materials-Oriented
Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Shuo Hu
- State Key Laboratory of Materials-Oriented
Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Hong Jiang
- State Key Laboratory of Materials-Oriented
Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Yefei Liu
- State Key Laboratory of Materials-Oriented
Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Jun Huang
- State Key Laboratory of Materials-Oriented
Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Weihong Xing
- State Key Laboratory of Materials-Oriented
Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Rizhi Chen
- State Key Laboratory of Materials-Oriented
Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
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Saeidi S, Nikoo MK, Mirvakili A, Bahrani S, Saidina Amin NA, Rahimpour MR. Recent advances in reactors for low-temperature Fischer-Tropsch synthesis: process intensification perspective. REV CHEM ENG 2015. [DOI: 10.1515/revce-2014-0042] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe low-temperature Fischer-Tropsch (LTFT) process aims to produce heavy cuts such as wax and diesel. For many years, there have been studies and improvements on the LTFT process to make the existing reactors more efficient. Recent studies have proposed innovative configurations such as monolithic loop and membrane reactors as well as microchannel reactor, which improved the performance of LTFT synthesis. This persuades us to update the existing knowledge about the available reactors. Some fundamental features of the current reactors, which belong to the classes of conventional reactors (fixed-bed reactors and slurry reactors) and innovative reactors, are discussed to assist the selection of the most efficient reactors specifically for heavy-cuts production. Published experimental and theoretical works with respect to developments in reactor technology and significant advances in catalysis (such as using structured packing, foams, and knitted wire as catalyst supports due to their excellent radial mixing properties) of the FT process are analyzed and discussed. Consequently, it is shown that the LTFT innovative reactors have higher CO conversions and selectivity of desired heavy cuts. Furthermore, the place of innovative reactors among conventional reactors in terms of effective process parameters on the product distribution has been estimated.
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