有氧条件下CO选择性催化还原NO_(x)的研究进展  

Research Progress of CO Selective Catalytic Reduction of NO_(x) Under Oxygen Conditions

作　　者：李坚[1] 赵晶[1] 蔡建宇[1] 陈普波 LI Jian;ZHAO Jing;CAI Jianyu;CHEN Pubo(Key Laboratory of Beijing on Regional Air Pollution Control,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学区域大气复合污染防治北京市重点实验室,北京100124

出　　处：《北京工业大学学报》2022年第11期1208-1214,共7页Journal of Beijing University of Technology

基　　金：国家重点研发计划资助项目(2I005013201801)。

摘　　要：介绍了近年来有氧条件下CO选择性催化还原(CO selective catalytic reduction,CO-SCR)催化剂的研究现状,重点介绍了Ir基、Pd基、Cu基、Co基催化剂的研究进展,分析了载体种类、助剂和活性组分掺杂量等因素对催化剂活性的影响.简述了H_(2)O和SO_(2)对催化剂活性的影响,并介绍了CO-SCR的反应机理,为提高CO-SCR催化剂抗氧性提供参考.最后指出,O_(2)在催化剂表面的反应机理、SO_(2)和H_(2)O对催化剂的毒害机理是今后有氧条件下CO-SCR可能的研究方向.The research status of CO selective catalytic reduction(CO-SCR)catalysts under oxygen conditions in recent years was introduced.The research progress of Ir-based,Pd-based,Cu-based and Co-based catalysts was mainly introduced.The influence of type of carrier,doping modification and active component on the catalyst activity was analyzed.The effects of H_(2)O and SO_(2)on the activity of catalysts were investigated,and the reaction mechanism of CO-SCR was investigated to provide reference for improving the active of CO-SCR catalysts under oxygen condition.Finally,it is pointed out that it is the possible research directions of CO-SCR in the reaction mechanism of O_(2)and the toxic mechanism of SO_(2)and H_(2)O on the catalyst under oxygen condition in the future.

关 键 词：一氧化碳 选择性催化还原 催化剂 氧气 抗硫抗水性 NO_(x) 

分 类 号：X511[环境科学与工程—环境工程]