金属氧化物MoO_3(WO_3)和V_2O_5对烟气脱硝催化性能试验  

EXPERIMENTAL STUDY OF CONTRIBUTION OF METAL OXIDE MoO_3(WO_3)AND V_2O_5 ON THE CATALYSTS FOR THE SELECTIVE CATALYTIC REDUCTION OF NITRIC OXIDE BY AMMONIA

作　　者：范红梅[1] 仲兆平[1] 金保升[1] 李锋[1] 翟俊霞[2] 刘涛[1] 

机构地区：[1]东南大学能源与环境学院洁净煤发电及燃烧技术教育部重点实验室,南京210096 [2]南京工程学院基础部,南京210013

出　　处：《环境化学》2007年第4期439-443,共5页Environmental Chemistry

基　　金：教育部新世纪优秀人才资助计划(NCET-05-0469);中国博士后科学基金(2004035090)资助项目

摘　　要：以纳米级锐钛型TiO2为载体,负载V2O5和WO3(或MoO3)制备催化剂,研究不同催化剂组分对NO和NO2脱除率以及N2O生成量的影响.结果表明,V2O5的加入使得MoO3(WO3)/TiO2催化剂的活性和选择性得到了改善.MoO3(WO3)的加入主要是改善了催化剂表面的活性位数量,从而使得V2O5/TiO2基催化剂表现出更高的活性.An experimental investigation was conducted to study the contribution of effects of catalyst components on DeNOx performance of V2O5-based Catalyst grafted on nano-grade anatase TiO2. The experiment indicates that MoO3 （ WO3 ）/TiO2 are active SCR catalysts even in the absence of V2O5. The presence of V2O5 has significant promoting effect on the activity and selectivity of MoO3 （ WO3 ）/TiO2 catalyst. The oxide additive MoO3 （ WO3 ） has increased the reduction of the active vanadia site so that the ternary V2O5-MoO3 （WO3 ）/TiO2 show a higher reducibility than the binary V2O5/TiO2 catalyst.

关 键 词：V2O5 MOO3 WO3 DENOX 

分 类 号：X701[环境科学与工程—环境工程]