干法水泥生产线用燃煤烟气脱氮催化剂的研究  

Study on the Preparation of Denitration Catalyst for Flue Gas from Coal Combustion in Cement industry

作　　者：徐东耀[1] 孙智君[1] 夏力肯.金格斯 王丹[1] 曹雨薇[1] 郑斑超 强长棣 杨巧文[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《广东化工》2015年第9期37-38,共2页Guangdong Chemical Industry

摘　　要：为了控制NOx我们使用选择性催化还原法(SCR)制作了催化剂,此催化剂是钒掺杂的二氧化硅,负载过程使用了正交试验法。结果表明:载体中经CTAB和KCl处理的载体具有最佳的脱硝性能,负载过程中活性组分含量为8%、偏钒酸铵与草酸铵比为1∶1、浸渍温度为80℃、浸渍时间为4小时,且经过氮化处理的催化剂具有最佳的脱硝性能,180℃条件下脱硝效率可达85.95%,4个因素的极差顺序为:浸渍时间>浸渍温度>活性组分含量>偏钒酸铵与草酸比。The catalyst was prepared to control NOx by Selective Catalytic Reduction （SCR）, this catalyst was vanadium-doped silica dioxide, and the orthogonal experiment method was used in the loading process. The experiment results instate： the carrier treated by CTAB and KCI had the best denitration performance, the active ingredient content of 8 %, the ratio of metavanadate and ammonium oxalate of 1 ： 1, dipping temperature of 80 ℃, the immersion time of catalyst after 4 hours of nitriding treatment had the best denitration performance, the denitration efficiency under conditions of 180 ℃ up 85.95 %, the range of the order of four factors： the immersion time〉immersion temperature〉the active ingredient content〉ratio of metavanadate and oxalic acid..

关 键 词：水泥行业 脱硝 SCR SIO2 

分 类 号：TQ172[化学工程—水泥工业]