Zeolite supported Pt catalysts for reduction of NO under oxygen excess:: a comparison of C3H6, HNCO and NH3 as reducing agents

被引：14

作者：

Acke, F ^{[1
]}

Skoglundh, M

机构：

[1] Chalmers Univ Technol, Competence Ctr Catalysis, S-41296 Gothenburg, Sweden

[2] Chalmers Univ Technol, Dept Inorgan Chem, S-41296 Gothenburg, Sweden

[3] Univ Gothenburg, S-41296 Gothenburg, Sweden

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 1999年 / 20卷 / 03期

关键词：

NOx reduction; platinum; ZSM-5; lean conditions; catalysis; ammonia; propene; isocyanate;

D O I：

10.1016/S0926-3373(98)00114-3

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：

The effect of the zeolite SiO2/Al2O3 ratio of ZSM-5 supported Pt catalysts on the reduction of NO under oxygen excess has been investigated. The activity and selectivity of three reducing agents were compared, i.e. C3H6, HNCO and NH3. The maximum NO reduction with both C3H6 and HNCO as the reducing agent was affected by the SiO2/Al2O3 ratio of the support. Although no effect was observed on the maximum NO reduction for NH3, the yields of Nz and N2O were affected. The results are put in perspective of reaction mechanisms proposed in the literature. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：235 / 242

页数：8

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