Ce掺杂TiO2-V2O5-WO3催化剂在水泥窑脱硝中的应用  

Denitration application of Ce additive TiO2-V2O5-WO3 catalyst in cement kiln

作　　者：刘海兵[1] 顾军[1] 李威 竹涛[3] 霍昱 韩一伟 LIU Haibing;GU Jun;LI Wei;ZHU Tao;HUO Yu;HAN Yiwei(State Key Laboratory of Solid Waste Reuse for Building Material,Beijing Building Materials Academy of Science Research,Beijing 100041;Beijing Taihang Qianjing Cement Co.Ltd.,Beijing 102471;Institute of Atmospheric Environmental Management and Pollution Control,China University of Mining & Technology (Beijing),Beijing 100083;Zhongnengguoxin (Beijing) Technology Development Co.Ltd.,Beijing 100000)

机构地区：[1]北京建筑材料科学研究总院固废资源化与节能建材国家重点实验室,北京100041 [2]北京金隅太行前景水泥有限公司,北京102471 [3]中国矿业大学(北京)大气环境管理与污染控制研究所,北京100083 [4]中能国信(北京)科技发展有限公司,北京100000

出　　处：《环境污染与防治》2019年第6期668-671,共4页Environmental Pollution & Control

基　　金：2015年度首都蓝天行动科技示范工程后补助项目(No.Z151100001515008);固废资源化利用与节能建材国家重点实验室开放基金资助项目(No.SWR-2017-002);中央高校基本科研业务专项基金资助项目(No.2009QH03)

摘　　要：以经Ce掺杂后的TiO2-V2O5-WO3催化剂为材料,在新型干法水泥生产线窑尾布袋除尘器后进行了低温选择性催化还原(SCR)脱硝中试试验。结果表明,掺杂Ce降低了TiO2-V2O5-WO3催化剂的起活温度。当烟气流量为10 000m^3/h(空速约5 000h^-1)、氨水流量为5L/h、烟气温度超过150℃时,脱硝效率可达50%以上。SCR脱硝系统中,5 000h^-1空速设计是可行的。Ce适宜作为TiO2-V2O5-WO3催化剂低温改性助剂。The Ce additive TiO2-V2O5-WO3catalyst was used as the material,and the pilot test was carried out after a bag filter at the cement kiln plant production line on low temperature selective catalytic reduction(SCR)denitration.The results showed that compared with the traditional TiO2-V2O5-WO3catalyst,Ce additive had obvious modification to the low temperature activity.The denitration efficiency was above 50%,when the gas volume was10 000m3/h(space velocity(SV)of 5 000h-1),ammonia flow rate was 5L/h and gas temperature exceeded 150℃.The results confirmed that SV of 5 000h-1 and Ce additive TiO2-V2O5-WO3catalyst of low temperature modification were feasible in engineering design.

关 键 词：CE TiO2-V2O5-WO3催化剂 水泥窑 选择性催化还原 低温脱硝 

分 类 号：X781.5[环境科学与工程—环境工程]