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Efficient Waste to Energy Conversion Based on Co-CeO2 Catalyzed Water-Gas Shift Reaction

Title
Efficient Waste to Energy Conversion Based on Co-CeO2 Catalyzed Water-Gas Shift Reaction
Author
전병훈
Keywords
waste-derived synthesis gas; high-temperature water-gas shift; Co–CeO2 catalyst; preparation method; oxygen vacancy
Issue Date
2020-04
Publisher
MDPI
Citation
CATALYSTS, v. 10, no. 4, article no. 420
Abstract
Waste to energy technology is attracting attention to overcome the upcoming environmental and energy issues. One of the key-steps is the water-gas shift (WGS) reaction, which can convert the waste-derived synthesis gas (H-2 and CO) to pure hydrogen. Co-CeO2 catalysts were synthesized by the different methods to derive the optimal synthetic method and to investigate the effect of the preparation method on the physicochemical characteristics of Co-CeO2 catalysts in the high-temperature water-gas shift (HTS) reaction. The Co-CeO2 catalyst synthesized by the sol-gel method featured a strong metal to support interaction and the largest number of oxygen vacancies compared to other catalysts, which affects the catalytic activity. As a result, the Co-CeO2 catalyst synthesized by the sol-gel method exhibited the highest WGS activity among the prepared catalysts, even in severe conditions (high CO concentration: similar to 38% in dry basis and high gas hourly space velocity: 143,000 h(-1)).
URI
https://www.mdpi.com/2073-4344/10/4/420https://repository.hanyang.ac.kr/handle/20.500.11754/165824
ISSN
2073-4344
DOI
10.3390/catal10040420
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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