CeO_(2)基催化剂在NH_(3)选择性催化还原NO_(x)反应中的研究进展  

Research Progress of CeO_(2)-based Catalyst in Selective Catalytic Reduction of NO_(x) by NH_(3)

作　　者：付竹 张启俭[1] 齐平[1] FU Zhu;ZHANG Qi-jian;QI Ping(School of Chemical&Environmental Engineering,Liaoning University of Technology,Jinzhou Liaoning 121001,China)

机构地区：[1]辽宁工业大学化学与环境工程学院,辽宁锦州121001

出　　处：《辽宁化工》2022年第3期384-387,共4页Liaoning Chemical Industry

基　　金：辽宁省自然科学基金(项目编号:20180550991)。

摘　　要：在控制NO_(x)排放的技术中,NH_(3)选择性催化还原(NH_(3)-SCR)被认为是最具发展前途的方案。CeO_(2)优异的氧化还原性能、超强的储放氧能力和适宜的表面酸性,使得CeO_(2)基催化剂受到了重点关注。从低温活性和操作窗口的角度,综述了纯CeO_(2)、改性CeO_(2)和负载型CeO_(2)的催化性能,探讨了反应条件对CeO_(2)基催化剂性能的影响,以期为催化剂的进一步设计优化提供参考。Among NO_(x) emission control technologies,NH_(3) selective catalytic reduction(NH_(3)-SCR) is considered as the most promising scheme.CeO_(2)-based catalysts have attracted much attention due to its excellent redox performance,superior oxygen storage and release capacity and suitable surface acidity.In this paper,the catalytic performance of pure CeO_(2),modified CeO_(2) and supported CeO_(2) was reviewed from the point of view of low temperature activity and operation window,and the influencing factors of CeO_(2)-based catalysts were discussed,in order to provide some reference for further design and optimization of catalysts.

关 键 词：铈基催化剂 NH_(3)-SCR反应 NO_(x) 

分 类 号：TQ032[化学工程]