Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science andEngineering, Beijing Forestry University
Engineering Research Center for WaterPollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing ForestryUniversity

在碳中和的目标下,CO2甲烷化技术不仅可以解决 CO2排放带来的环境问题,还可以生产CH4以缓解能源短缺等问题。 CO2甲烷化反应目前面临的主要问题之一是反应的强放热效应容易形成热点,导致催化剂活性组分烧结失活,影响催化剂的使用寿命。 因此,近年来研究者们在开发高效稳定的 CO2甲烷化催化剂的同时,也开始关注催化剂在反应过程中活性组分因高温导致烧结失活的解决方案。 而金属基整体式催化剂由于拥有良好的传热性能和机械强度,在 CO2甲烷化领域引起了越来越多的关注。 本文将从不同种类金属基整体式催化剂的制备方法、不同种类的金属基底的特点以及其在 CO2甲烷化反应方面的应用、金属基整体式催化剂的传热优势三个方面进行综述,系统地阐述了金属基整体式催化剂的研究现状,并对其发展前景进行了展望,以期为金属基整体式 CO2甲烷化催化剂的研发及工业化应用提供技术借鉴。

With the goal of carbon neutrality, CO2 methanation technology can not only solve the envi⁃ronmental problems caused by CO2 emissions, but also convert CO2 into CH4 to alleviate problems suchas the energy shortages. Since the strong exothermic of CO2 methanation reaction tends to form hotspots, leading to the sintering and inactivation of the active components of the catalyst. In recent years,researchers begun to pay attention to the solution of this problem while developing efficient CO2 metha⁃nation catalysts. Metal-substrate supported monolithic catalysts have attracted more and more attentionin CO2 methanation field due to their enhanced heat transfer and mechanical strength. In this paper, thedifferent preparation method, the application of different types of metal substrates, and the advantagesof heat transfer of metal-substrate supported monolithic catalyst in CO2 methanation reaction are re⁃viewed. This review systematically summarizes the current studies of metal-substrate supported mono⁃lithic catalyst and discusses the future development trend, in order to provide technical reference for theresearch and industrial application.

国家自然科学基金资助项目(52106072,52225003)

申芮旭, 汪紫菱, 张天雨, 等. 金属基整体式二氧化碳甲烷化催化剂研究进展[J]. 能源环境保护, 2023,37(1): 115-129.

SHEN Ruixu, WANG Ziling, ZHANG Tianyu, et al. Recent progress in metal-substrate supported monolithic cat⁃alysts for CO2 methanation[J]. Energy Environmental Protection, 2023, 37(1): 115-129.