Selective catalytic reduction of NO with NH3 over natural zeolites and its application to stationary diesel engine exhaust

被引:31
作者
Mishima, H
Hashmoto, K
Ono, T
Anpo, M
机构
[1] Univ Osaka Prefecture, Dept Appl Chem, Osaka 5998531, Japan
[2] Takuma Co Ltd, Takasago, Hyogo 6768540, Japan
[3] Osaka Municipal Tech Res Inst, Jyoto Ku, Osaka 5360025, Japan
关键词
NO removal with NH3; natural zeolites; vanadium cations; diesel engine exhaust;
D O I
10.1016/S0926-3373(98)00071-X
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Cation exchanged natural zeolite catalysts for the reduction of NO with NH3 were developed. The synthetic mordenite containing Cu, V, and Cr cations showed high activity for the reduction of NO with NH3. Natural Izulralite containing mainly mordenite exhibits high activity for the selective reduction of NO when they were anchored with Cu, Mn, Co, and V cations. Furthermore, the anchored pellet catalysts prepared from Zeo 3S (clinoptilolite) and Izukalite exchanged with vanadium ions and mixed with TiO2 exhibited high activity for the reduction of NO with NH3. The honeycomb catalysts prepared from V-Izukalite were found to be especially effective for stationary diesel engine exhaust. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:119 / 126
页数:8
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