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.
作者
李坚
赵晶
蔡建宇
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)
出处
《北京工业大学学报》
CAS
CSCD
北大核心
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)。
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)
carbon monoxide
selective catalytic reduction(SCR)
catalyst
oxygen
sulfur and water resistance
NO_(x)
