低温SCR脱硝催化剂综述  

Review on Low-temperature SCR Denitration Catalysts

作　　者：高翔[1] 卢徐节[1] 胡明华[1] 

机构地区：[1]工业烟尘污染控制湖北省重点实验室(江汉大学),江汉大学化学与环境工程学院,湖北武汉430056

出　　处：《江汉大学学报（自然科学版）》2014年第2期12-18,共7页Journal of Jianghan University：Natural Science Edition

基　　金：湖北省自然科学基金(2012FFC08701)

摘　　要：目前氮氧化物(NOx)的污染越来越严重,低温选择性催化还原法(SCR)脱硝催化技术作为新型的、具有潜力的烟气脱硝技术,备受人们关注。综述了低温SCR脱硝催化剂的的研究现状,着重介绍了锰基催化剂、钒基催化剂以及其他金属氧化物催化剂的研究进展,阐述了不同种类的催化剂制备方法、载体,以及使用不同种类的金属氧化物活性组分对催化剂活性和脱硝效率的影响,探讨了低温SCR催化剂的脱硝机理,同时介绍了烟气中水蒸气和SO2对催化过程的影响。Nowadays,NOxpollution becomes more and more serious,low temperature SCR denitra-tion technology,as a kind of new and potential denitration technology,has attract people′s attention.Gives a summary and commentary on the research status of low temperature SCR denitrationcatalysts and mainly introduces the scientific research status of manganese catalysts,vanadium cata-lysts and other metal oxide catalysts. Indicates the different types of catalyst preparation methods, carriers,and the use of different kinds of metal oxides may all have influence on the catalyst activityand the efficiency of denitrification. Meanwhile,the denitration mechanism of low-temperature SCRcatalysts is introduced. At last,elaborates the effects of water vapor and SO2in fuel gas on catalyticprocess.

关 键 词：氮氧化物(NOx) 低温SCR脱硝催化剂 脱硝机理 金属氧化物 

分 类 号：X701.7[环境科学与工程—环境工程]