School of Energy Science and Engineering,Harbin Institute of Technology
School of Electrical Engineering and Automation,Harbin Institute of Technology

随着热化学技术及相关反应机制认知的不断进步,二氧化碳回收转化为高附加值燃料或其他化工产品的清洁能源技术正逐步走向成熟。 同时,因社会工业进步及人类生产活动急剧增加了大气中的二氧化碳浓度,且已远超地球正常发展的浓度阈值,这使得基于二氧化碳转化的零碳高效可再生清洁能源技术成为世界各国为应对全球能源与环境问题亟待实现的关键技术。 鉴于二氧化碳热催化转化的基本原理、关键材料和反应系统的相关研究对于推动该技术的工业化进程有着至关重要的作用,本文报道了二氧化碳热催化转化机制相关的最新进展,重点阐述了对热催化过程具有辅助作用的活性气体(包括 H2O、CH4和 H2)在实现高水平二氧化碳回收转换与高效合成气生产方面的催化机制,其核心体现在优化的反应动力学与温和条件下的热力学优势。

The ability to produce high-grade fuels and chemicals by reutilizing CO2 is becoming indis⁃putably realizable thanks to the development of knowledge of certain mechanisms and progress in theability to use existing technologies. The current atmospheric concentration of CO2,its environmental im⁃pacts,and the increasing levels of human activity stimulate the development of reliable and affordablerenewable clean fuel technologies,based on CO2 conversion,for achieving the closing of the carbon cy⁃cle. Meeting this goal is of great importance,but doing so is full of challenges in relation to prospects forglobal application. The fundamentals of thermo-catalytic conversion of CO2 and the key materials andsystems needed have led to considerable research attention in the context of creating clean industrialfeedstock,a greener economy,and a protected environment. This article investigates recent progress inCO2 thermo-catalytic conversion mechanisms. The combination of CO2 feed with other reactive gases,such as H2O,CH4,and renewable H2 could be able to achieve high levels of CO2 reuse,thanks to thehigher conversion kinetics and much more thermodynamic favorability at milder operating conditions.

国家重点研发计划资助项目(2018YFA0702300);国家自然科学基金资助项目(52227813)

马丹妮, 颜天天, 张烁, 等. CH4 / H2O/ H2 辅助热催化 CO2 转化机制[J]. 能源环境保护, 2023, 37(6):23-35.

MA Danni,YAN Tiantian,ZHANG Shuo, et al. CH4 / H2O/ H2 -assisted thermocatalytic CO2 conversion mecha⁃nisms:A review[J]. Energy Environmental Protection, 2023, 37(6): 23-35.