甲烷催化燃烧反应机理及催化剂研究进展  

Research progress of reaction mechanism and catalysts on catalytic methane combustion

作　　者：楚培齐 王赛飞 赵世广 张依 邓积光[3] 刘雨溪[3] 郭萌 段二红[1,2] CHU Pei-qi;WANG Sai-fei;ZHAO Shi-guang;ZHANG Yi;DENG Ji-guang;LIU Yu-xi;GUO Meng;DUAN Er-hong(School of Environmental Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China;National Local Joint Engineering Research Center for Volatile Organic Compounds and Odor Pollution Control,Shijiazhuang 050018,China;College of Environmental and Energy Engineering,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]河北科技大学环境科学与工程学院,河北石家庄050018 [2]挥发性有机物与恶臭污染防治技术国家地方联合工程研究中心,河北石家庄050018 [3]北京工业大学环境与能源工程学院,北京100124

出　　处：《燃料化学学报》2022年第2期180-194,共15页Journal of Fuel Chemistry and Technology

基　　金：国家自然科学基金(U20A20130);河北省高等学校科学技术研究项目(QN2021059);河北省重点研发计划-资源与环境专项(20373703D);河北科技大学人才研究基金(1181400)资助。

摘　　要：在煤矿开采及燃气轮机等工业应用或移动源领域存在甲烷大体量排放,且传统高温焚烧法会导致二次污染,因此,在低温下实现甲烷高效转化成为亟待解决的问题。从能源利用和环境保护角度,催化燃烧技术是实现甲烷废气高效净化的有效措施。本文综述了近年来催化机理和催化剂的研究进展。首先,在实验和理论基础上,总结概括了甲烷氧化机理,其中,重点阐述了“Two-term”模型;其次,系统介绍了各催化剂的性能优缺点和改性技术;最后,对甲烷催化未来研究提出展望,即采用结构优化方法来暴露更多活性位点或产生多组分协同催化效果、利用非贵金属掺杂等强化手段制备高效催化剂、进一步通过多重外场共同激发催化性能。此外,各类催化机理的自身完善和新型机理描述符的开发也是未来研究的重要方向。Large amounts of methane are emitted from coal mining and industrial applications such as gas turbines or mobile sources which also have the characteristics of low concentration and huge volume,and the traditional high temperature incineration method leads to secondary pollution.Therefore,the efficient conversion of methane at low temperature has become an urgent problem.From the perspectives of energy utilization and environmental protection,the catalytic combustion technology is a valid measure to achieve efficient and clear utilization of methane.In this paper,a systematic review of recent research advances in catalytic mechanisms and catalysts is presented.Firstly,the mechanism of methane oxidation is summarized and outlined based on experiments and theories,with emphasis on the"Two-term"model.Secondly,the performance advantages and disadvantages of each catalyst and modification techniques are systematically introduced.Lastly,the perspectives for the future research are proposed,for instance,the use of structural optimization methods to expose more active sites or generate multi-component synergistic catalytic effects,the use of non-noble metal doping and other enhancements to prepare highly efficient catalysts,and the further co-excitation of catalytic performance by multiple external fields.In addition,the improvement of various catalytic mechanisms themselves and the development of new mechanism descriptors are also important directions for the future research.

关 键 词：甲烷 催化氧化 催化剂 反应机理 多相反应 

分 类 号：TQ426[化学工程] X701[环境科学与工程—环境工程]