Applied Catalysis2022，Vol.3009.DOI:10.1016/j.apcatb.2021.120713

FeMn@HZSM-5 capsule catalyst for light olefins direct synthesis via Fischer-Tropsch synthesis: Studies on depressing the CO2 formation

Song, Faen Yong, Xiaojing Wu, Xuemei Zhang, Wei Ma, Qingxiang Zhao, Tiejian Tan, Minghui Guo, Zhongshan Zhao, Heng Yang, Guohui Tsubaki, Noritatsu Tan, Yisheng
Applied Catalysis2022，Vol.3009.DOI:10.1016/j.apcatb.2021.120713
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  • NSTL
  • Elsevier

FeMn@HZSM-5 capsule catalyst for light olefins direct synthesis via Fischer-Tropsch synthesis: Studies on depressing the CO2 formation

Song, Faen 1Yong, Xiaojing 2Wu, Xuemei 1Zhang, Wei 2Ma, Qingxiang 3Zhao, Tiejian 2Tan, Minghui 1Guo, Zhongshan 2Zhao, Heng 4Yang, Guohui 1Tsubaki, Noritatsu 4Tan, Yisheng1
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作者信息

  • 1. Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China
  • 2. Natl Energy Grp Ningxia Coal Ind Co Ltd, Yinchuan, Ningxia, Peoples R China
  • 3. Ningxia Univ, State Key Lab High Efficiency Coal Utilizat & Gre, Yinchuan 750021, Ningxia, Peoples R China
  • 4. Univ Toyama, Sch Engn, Dept Appl Chem, Toyama 9308555, Japan
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Abstract

For Fe-based Fischer-Tmpsch synthesis catalyst, how to decrease CO2 formation is a big challenge. In this work, a capsule catalyst (FeMn@HZSM-5) with FeMn as core and HZSM-5 as shell was prepared and used for Fischer-Tropsch to olefins (FTO) reaction, compared with bare FeMn catalyst and several hybrid catalysts by physically mixing FeMn and HZSM-5 in different ways. Among these catalysts, the FeMn@HZSM-5 capsule catalyst showed the best catalytic performance with the highest light olefins selectivity and the lowest CO2 selectivity. Compared with FeMn catalyst, the CO2 selectivity of FeMn@HZSM-5 catalyst decreased more than 10%. However, the CO2 selectivity of other physically mixing catalysts was similar to that of bare FeMn catalyst, indicating that randomly adding HZSM-5 had no effect on depressing the CO2 formation. Benefiting from the HZSM-5 shell, the FeMn@HZSM-5 capsule catalyst could effectively affect the diffusion of H2O and thus suppress the water-gas shift reaction in FTO reaction.

Key words

Fischer-Tropsch synthesis/Water-gas shift reaction/FeMn catalyst/Capsule catalyst/Core-shell structure

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出版年

2022
Applied Catalysis

Applied Catalysis

ISSN：0926-3373
被引量26
参考文献量50
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