4.2 Review

COx Fixation to Elementary Building Blocks: Anaerobic Syngas Fermentation vs. Chemical Catalysis

期刊

CHEMIE INGENIEUR TECHNIK
卷 94, 期 11, 页码 1667-1687

出版社

WILEY-V C H VERLAG GMBH
DOI: 10.1002/cite.202200153

关键词

Acetogenic C-1 conversion; Biofuels; Carbon utilization; Heterogeneous catalysis; Reaction networks

资金

  1. Federal Ministry of Education and Research (BMBF) [03SFK2K0-2]
  2. CoordenacAo de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) [88881.174609/2018-01]
  3. Helmholtz Research Program Materials and Technologies for the Energy Transition (MTET), Topic 3: Chemical Energy Carriers
  4. KIT-Publication Fund of the Karlsruhe Institute of Technology
  5. Projekt DEAL

向作者/读者索取更多资源

This review provides a comparison of different reaction paths, operating conditions, and product recovery between heterogeneous catalysis and anaerobic syngas fermentation for the conversion of synthesis gas. While the mass-specific productivity is similar for both technologies, the space-time yield of heterogeneous catalysis is significantly higher.
Heterogeneous catalysis and anaerobic syngas fermentation represent two different approaches for the conversion of synthesis gas into chemicals and fuels. This review provides a unique comparison of different reaction paths for the fixation of CO2, CO and H-2 into elementary building blocks such as methanol, acetic acid and ethanol. Operating conditions, reactor engineering, influence of gas impurities, yields, conversion efficiencies as well as downstream product recovery are compared. It was found that mass-specific productivity ranges in the same order of magnitude for both technologies, while space-time yield of heterogeneous catalysis is up to three orders of magnitude higher.

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