草酸对钨基分子筛催化剂脱硝的影响  

Oxalic acid influence on selective catalytic reduction of NO_x over tungsten-based zeolite

作　　者：马小勇[1] 任丙南[1] 甘柯[1] 朱开进[1] 杨巧文[1] 

机构地区：[1]中国矿业大学化学与环境工程学院,北京100083

出　　处：《中国科技论文在线》2010年第5期365-368,376,共5页

基　　金："十一五"国家科技支撑计划资助项目(2006BAF02A15-08-0)

摘　　要：在选择性催化还原脱硝研究中,利用浸渍法制得未加入草酸和加入草酸的钨基分子筛催化剂,通过SCR脱硝装置,测定2种类型催化剂的脱硝效率。其中未加入草酸的催化剂在钨的百分含量为8%时,脱硝率最高,达到66.67%,而加入草酸的催化剂在同样的百分含量处脱硝率达到80.31%。草酸的加入能明显提高催化剂的脱硝效率。During the study of selective catalytic reduction （SCR） of NOx,two series of tungsten-based zeolite catalysts,with or without oxalic acid,were made using impregnation,and tested for the denitrification efficiency. Results show that the catalysts with oxalic acid had the maximum denitrification efficiency of 80.31% at tungsten content of 8%,while the maximum efficiency reached only 66.67% without oxalic acid in the catalyst. The addition of oxalic acid could significantly increase the denitrification efficiency of tungsten-based zeolite catalyst.

关 键 词：分子筛 草酸 脱硝 钨 

分 类 号：X517[环境科学与工程—环境工程]