作　　者： ; ; ; ;

机构地区： 北京航空航天大学材料科学与工程学院

出　　处： 《北京航空航天大学学报》 2004年第10期1025-1028,共4页

摘　　要： 用溶胶 凝胶混合法制备了Al2 O3 ,Ag Al2 O3 ,Sn Al2 O3 ,Ga Al2 O3 ,Co Al2 O3 和Pt Al2 O3 等催化剂 .在相同实验条件下 ,比较了C3 H6在这些催化剂上还原NO的活性 ,并考察了反应条件对C3 H6和CH3 OH在Ag Al2 O3 上还原NO性能的影响 .结果表明 ,Ag Al2 O3 的还原NO活性优于其它催化剂 .H2 O对Ag Al2 O3 催化剂的NO还原具有可逆抑制作用 ,SO2 降低C3 H6在Ag Al2 O3 上还原NO的活性 ,但会显著提高CH3 Al2O3, Ag/Al2O3, Sn/Al2O3, Ga/Al2O3, Co/Al2O3 and Pt/Al2O3 catalysts were prepared by the sol-gel method and the activities of NO reduction by C3H6 over the catalysts were compared in the presence of oxygen. The Ag/Al2O3 displaying the highest NO reduction activity among catalysts was studied. The effects of reaction conditions on NO reduction by C3H6 and CH3 OH over Ag/Al2O3 were also investigated. The results show that the presence of H2O results in a decrease of NO reduction activity and inhibition effect was reversible. In the presence of SO2 the activity of NO reduction by CH3 OH significantly increases while that of NO reduction by C3H6 decreases.

关 键 词： 一氧化氮 丙烯 催化还原 甲醇

领　　域： [环境科学与工程]