二氧化碳逆水煤气变换的研究进展  

Research progress of CO_(2)conversion via Reverse Water-Gas Shift reaction

作　　者：侯章贵 吴冲冲 张斯然 HOU Zhanggui;WU Chongchong;ZHANG Siran(CNOOC Institute of Chemicals&Advanced Materials,Beijing 102209,China)

机构地区：[1]中海油化工与新材料科学研究院,北京102209

出　　处：《无机盐工业》2024年第11期105-115,共11页Inorganic Chemicals Industry

基　　金：中海油CCUS重大专项二氧化碳制碳中性航空煤油技术研究项目(KJGG-2022-12-CCUS-030402)。

摘　　要：逆水煤气变换(RWGS)反应,通过催化二氧化碳与氢气的反应,成为生成甲醇、低碳烯烃、芳烃、汽油等高附加值化学品和燃料的关键步骤。深入剖析了RWGS反应的两大机理:氧化还原机理和中间体机理。同时,对近年来RWGS反应的研究进展进行了详细综述,对应用于该反应的催化剂进行了系统的分类、分析和总结。这些催化剂涵盖了负载型金属催化剂、氧化物催化剂(混合氧化物、尖晶石和钙钛矿)及碳化物催化剂。此外,还对RWGS的工业应用进行了分析,并对RWGS反应的发展进行了展望。RWGS可耦合石脑油脱氢芳构化技术、乙苯脱氢制备苯乙烯技术、低碳烷烃脱氢制烯烃技术、二氧化碳捕集技术及合成电子燃料技术等实现二氧化碳资源化利用。这不仅为开发制备新型RWGS反应催化剂提供了理论依据和指导,也为未来RWGS反应的应用场景提供了可行的思路和参考。The Reverse Water-Gas Shift(RWGS)reaction,facilitated by the catalytic reaction between carbon dioxide and hydrogen,has become a crucial step in the production of high-value chemicals and fuels such as methanol,low-carbon olefins,aromatics,and gasoline.This review presents an in-depth analysis of the two primary mechanisms of the RWGS reaction:the redox mechanism and the intermediate mechanism.Additionally,recent advancements in RWGS research were comprehensively reviewed,the catalysts employed in this reaction were systematically categorized,analyzed,and summarized.These catalysts encompassed supported metal catalysts,oxide catalysts(including mixed oxides,spinels,and perovskites),and carbide catalysts.Moreover,the industrial applications of the RWGS reaction was analyzed and its future development was prospected.RWGS reaction could serve as an efficient method for integrating technologies like naphtha dehydroaromatization,ethylbenzene dehydrogenation for styrene production,low-carbon alkane dehydrogenation for olefin production,carbon dioxide capture,and synthetic electronic fuel production to realize efficient utilization of CO_(2).It not only provided theoretical basis and guidance for developing new RWGS reaction catalysts but also offered feasible ideas and references for the future application scenarios of the RWGS reaction.

关 键 词：逆水煤气变换 催化剂 反应机理 二氧化碳 

分 类 号：TQ116[化学工程—无机化工]