富氧条件下氢部分选择性催化还原NO研究  

PARTIAL-SELECTIVE CATALYTIC REDUCTION OF NO BY HYDROGEN IN THE EXCESS OF OXYGEN

作　　者：孟赫[1] 王树东[1] 付桂芝[1] 吴迪镛[1] 

机构地区：[1]中国科学院大连化学物理研究所,大连116023

出　　处：《环境工程》2002年第2期37-38,共2页Environmental Engineering

摘　　要：研制成功了低钯含量活性非均布Pd Al2 O3催化剂 ,实现了富氧条件下 ,氢部分选择性催化还原NO过程。实验表明在该催化剂上 ,低温、富氧条件下NO的转化率高达 80 %～ 10 0 %。室温下 (～ 2 0℃ ) ,NO对氢氧反应有强烈的抑制作用 ,氢氧反应进行后 ,NO还原反应开始明显进行 。Partial selective catalytic reduction of NO by hydrogen has been studied on non uniform activity distribution Pd/Al 2O 3 catalyst with low Pd content in the excess of oxygen. Experimental results show that conversion of NO can be reached 80%～100% at low temperature.NO is inhibiting to hydrogen oxygen reaction at approximately 20℃.NO reduction reaction begins after starting of hydrogen oxygen reaction and they are parallel reactions.

关 键 词：NO 活性非均布催化剂 部分选择性 催化还原 氢 一氧化氢 大气污染 污染处理 

分 类 号：X701[环境科学与工程—环境工程]