烟气NO氧化催化剂Cu-V/Ti-PILCs的制备及其硫水稳定性  

Preparation and stability of Cu/V exchanged TiO_2-pillared clay for oxidization of NO in flue gas

作　　者：赵青涛[1] 童华[1] 王京刚[1] 徐仲均[1] 刘欣[1] 

机构地区：[1]北京化工大学环境科学与工程系,北京100029

出　　处：《环境工程学报》2011年第5期1129-1132,共4页Chinese Journal of Environmental Engineering

基　　金：教育部博士点基金青年基金项目(20070010017)

摘　　要：采用等体积浸渍法制备了以钛交联粘土为载体,Cu与V氧化物为活性组分的烟气NO氧化催化剂(Cu-V/Ti-PILCs),并考察了各种制备条件下催化剂的活性及稳定性。结果显示,当V水/V丙酮=1∶2,负载4%CuO和2%V2O5,并在500℃煅烧时制得的Cu-V/Ti-PILCs催化剂,在NO浓度为350 mg/m3,O2体积分数10%,N2平衡,空速12 000 h-1,NO的氧化度可以达到48%,并在含7.3%(V)和700 mg/m3SO2的模拟烟气中,稳定活性10 h以上,初步显示其耐硫、水中毒性能良好。Cu/V exchanged TiO2-pillared clays（Cu-V/Ti-PILCs） for catalytic oxidization of NO in flue gas was prepared by equal volume impregnation method;and their catalytic activity and stability at different preparation conditions were investigated.Experimental results showed that Cu-V/Ti-PILCs prepared under conditions of VH2O/Vacetone=1∶ 2,4% of CuO load,2% of V2O5 load,and calcination temperature of 500 ℃ reached 48% of oxidation of NOx when NO concentration was 350 mg/m3,O2 was 10%（V）,N2 was balance,and superficial space velocity was 12 000 h-1.It preserved its activity more than 10 hours even with 7.3%（V） water vapor and 700 mg/m3 SO2 in simulated flue gas,showing good resistibility to SO2 and H2O poisoning.

关 键 词：烟气脱硝 钛交联粘土 NO氧化 

分 类 号：X701[环境科学与工程—环境工程]