CuAl-Ce-PILC在丙烯选择性催化还原NO反应中的失活研究.pdf

环 境 科 学 V01．28．No．3 Mar．。2007 ENVIRONMENTALSCIENCE 失活研究 林绮纯1，郝吉明H，李俊华1，傅立新1，林维明2 (1．清华大学环境科学与工程系，北京100084；2．广州大学化工系，广州510405) PILC，并将其应用于C3 塞了催化剂孔道的现象．这三者的共同影响促进了c，H6深度氧化，抑制了N0还原，从而导致催化剂的失活． 关键词：cu，A1．ce—PILC；氮氧化物；丙烯；选择性催化还原；失活 中图分类号：)【511文献标识码：A文章编号：0250—3301(2007)03一0489．05 onDe舵tivationofCu／Al—Ce．P几CintheSelective of ReductionNo Stlldy Catalytic byPropyleI地 I』N Jun．hual，FuLi。)【inl，LINwei．min92 Qi-chunl，HAOJi．min∥，LI ofEnVironmemalscienceaIld (1．Depa咖lent 100084， ofchemical Engineerirlg，Tsinghuauniversity，Beijingchina；2．Depa咖Ient Engineering，Guangzhou 510405，China) University，Guangzhou Abstract：New were咖diedforN0removal inthe 0f claycatalysts oft11isworkisto pillared byhydrocarbonpresenceoxygen．Thepu。pose thedeactivationofCu，Al—Ce—PILCintlleSCRofN0．MontIIloriUonitewas multi study cationto Al— pillaredby oligomerichydroxyl syn由esize and Ce—PILctreated itwasusedas was by(NH4)2S04，tIIen catalyst catalyst support．Cu／Al—ce—PILCpreparedbyimpre印ationalld印plied totlleSCR《N0 N0conversionto reacheditsma】【imumof56％at350℃anddecreasedto22％at700℃．Tbthe byC3H6．7111e N2 studv deactivationofCu，Al—Ce—PILCintheSCRofN0a