Selective catalytic reduction of NOx to nitrogen over Co-Pt/ZSM-5 -: Part A.: Characterization and kinetic studies

被引：35

作者：

Maisuls, SE

Seshan, K

Feast, S

Lercher, JA

机构：

[1] Univ Twente, Fac Chem Technol, Lab Catalyt Proc & Mat, NL-7500 AE Enschede, Netherlands

[2] Tech Univ Munich, Inst Tech Chem, D-85748 Garching, Germany

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2001年 / 29卷 / 01期

关键词：

nitrogen oxides; hydrocarbon; selective catalytic reduction; bimetallic; cobalt; platinum; ZSM-5;

D O I：

10.1016/S0926-3373(00)00194-6

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 selective catalytic reduction of NO by propene in the presence of excess oxygen has been studied over catalysts based on Co-Pt supported on ZSM-5. Pure Pt based catalysts are highly active, but produce large amounts of N2O. Bimetallic Co-Pt/ZSM-5 catalysts with low Pt contents (0.1 wt.%) show a synergistic effect by combining high stability and activity of Pt catalysts with the high N-2 selectivity of Co catalysts. The lower selectivity to N2O is attributed to its selective conversion over Co. The catalysts also showed high water and sulfur tolerance above 350 degreesC. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：69 / 81

页数：13

共 49 条

[1] On the mechanism of selective NOx reduction with alkanes over Cu/ZSM-5 [J].