Selective catalytic reduction of NO under ambient conditions using ammonia as reducing agent and MFI zeolites as catalysts

被引：15

作者：

Roberge, D

Raj, A

Kaliaguine, S

On, DT

Iwamoto, S

Inui, T

机构：

[1] UNIV LAVAL,DEPT GENIE CHIM,ST FOY,PQ G1K 7P4,CANADA

[2] KYOTO UNIV,GRAD SCH ENGN,DEPT ENERGY & HYDROCARBON CHEM,SAKYO KU,KYOTO 60601,JAPAN

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 1996年 / 10卷 / 04期

关键词：

TS-1; VS-1; VTS-1; silicalite-1; H-BS-1; H-ZSM-5; nitrogen monoxide; selective reduction; low temperature SCR;

D O I：

10.1016/S0926-3373(96)00062-8

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：

Ambient temperature SCR of NO was studied over Ti, V and B silicalite-1, silicalite-1 and H-ZSM-5 catalysts. It was observed that even at 0 degrees C silicalite-l possesses some activity which falls off sharply with increasing temperature. An enhanced activity could be correlated to the titanium content in the Ti and Ti-V silicalite samples. H-ZSM-5 and H-BS-1 show an unusually high transient activity probably due to weakly adsorbed ammonia species. These would not be adsorbed at higher temperature thus explaining the decreased activity as temperature is raised. Indeed with these catalysts no transient high activity was observed when the reaction was carried out at decreasing temperatures.

引用

页码：L237 / L243

页数：7

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