期刊
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
卷 343, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2023.123477
关键词
Value-added petrochemicals; C1 chemistry; Tandem reaction; CO x hydrogenation; Oxygenates; Clean alternative fuels
This paper summarizes the catalytic activities and reaction mechanisms of COx conversions, and strategies for improving catalytic activity and stability. It also discusses the use of tandem reactions with hybrid catalysts to efficiently utilize methane gas with high CO/CO2 content.
The emission controls of carbon oxides (COx) are crucial to fulfill carbon neutrality, where COx is a useful building block for chemical synthesis. Therefore, COx conversions have been intensively investigated to reduce carbon emissions and to produce alternative fuels such as dimethyl ether, C5+ higher hydrocarbons, and higher alcohols by using heterogeneous catalysts. There are lots of advantages in catalytic conversion strategies, which can be largely affected by reaction conditions and types of catalysts. In the paper, catalytic activities and reaction mechanisms of COx conversions are briefly summarized to elucidate recent progresses of various catalytic reactions. Furthermore, the strategies to improve catalytic activity and stability as well as adjustments of final products selectivity are summarized. Various tandem reactions with well-designed hybridized catalysts to efficiently utilize CO/CO2 containing syngas are summarized to explain recent synthetic strategies for the productions of value-added hydrocarbon fuels and oxygenates by using environmentally benign catalytic processes.
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