Carbon Dioxide Fischer-Tropsch Synthesis : A New Path to Carbon-Neutral Fuels
- Authors
- Choi, Yo Han; Jang, Youn Jeong; Park, Hunmin; Kim, Won Young; Lee, Young Hye; Choi, Sun Hee; Lee, Jae Sung
- Issue Date
- Mar-2017
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Carbon capture and utilization; Carbon-neutral fuels; Copper-iron catalyst; Liquid hydrocarbons; CO2 Fischer-Tropsch synthesis
- Citation
- APPLIED CATALYSIS B-ENVIRONMENTAL, v.202, pp.605 - 610
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED CATALYSIS B-ENVIRONMENTAL
- Volume
- 202
- Start Page
- 605
- End Page
- 610
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/20493
- DOI
- 10.1016/j.apcatb.2016.09.072
- ISSN
- 0926-3373
- Abstract
- Paradigm of climate change mitigation technologies is shifting from carbon capture and storage (CCS) to carbon capture and utilization (CCU). Here we propose a new path to CCU - direct CO2 conversion to liquid transportation fuels by reacting with renewable hydrogen produced by solar water splitting. The highly promising and CO2-neutral CCU system is possible by our discovery of a new catalyst that produces liquid hydrocarbon (C5+) selectivity of similar to 65% and greatly suppressed CH4 formation to 2-3%, which represents an unprecedented selectivity pattern for direct catalytic CO2 hydrogenation and is very similar to that of conventional CO-based Fischer-Tropsch (FT) synthesis. The catalyst was prepared by reduction of delafossite-CuFeO2 and in-situ carburization to Hagg carbide (chi-Fe5C2), the active phase for heavy hydrocarbon formation. The reference catalysts derived from bare Fe2O3, CuO-Fe2O3 mixture, and spinel CuFe2O4 are much less active and produce mainly light hydrocarbons, highlighting the critical role of delafossite-CuFeO2 as the catalyst precursor. The new catalyst breaks through the limitation of CO2-based FT synthesis and will open the avenue for new opportunity for carbon recycling into valuable liquid fuels at the similar conditions to industrially practiced CO-FT synthesis.
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