摘要
在碳中和的目标下,CO_(2)甲烷化技术不仅可以解决CO_(2)排放带来的环境问题,还可以生产CH_(4)以缓解能源短缺等问题。CO_(2)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CO_(2)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CO_(2)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CO_(2)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CO_(2)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,CO_(2)methanation technology can not only solve the environmental problems caused by CO_(2)emissions,but also convert CO_(2)into CH_(4) to alleviate problems such as the energy shortages.Since the strong exothermic of CO_(2)methanation reaction tends to form hot spots,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 CO_(2)methanation catalysts.Metal-substrate supported monolithic catalysts have attracted more and more attention in CO_(2)methanation field due to their enhanced heat transfer and mechanical strength.In this paper,the different preparation method,the application of different types of metal substrates,and the advantages of heat transfer of metal-substrate supported monolithic catalyst in CO_(2)methanation reaction are reviewed.This review systematically summarizes the current studies of metal-substrate supported monolithic catalyst and discusses the future development trend,in order to provide technical reference for the research and industrial application.
作者
申芮旭
汪紫菱
张天雨
王强
SHEN Ruixu;WANG Ziling;ZHANG Tianyu;WANG Qiang(Beijing Key Lab for Source Control Technology of Water Pollution,College of Environmental Science andEngineering,Beijing Forestry University,Beijing 100083,China;Engineering Research Center for WaterPollution Source Control&Eco-remediation,College of Environmental Science and Engineering,Beijing ForestryUniversity,Beijing 100083,China)
出处
《能源环境保护》
2023年第1期115-129,共15页
Energy Environmental Protection
基金
国家自然科学基金资助项目(52106072,52225003)。
