Selective catalytic reduction of nitric oxide with ammonia on Fe-ZSM-5 catalysts prepared by different methods

被引：193

作者：

Delahay, G ^{[1
]}

Valade, D ^{[1
]}

Guzmán-Vargas, A ^{[1
]}

Coq, B ^{[1
]}

机构：

[1] ENSCM, CNRS, UMR 5618, Lab Mat Catalyt & Catalyse Chim Organ, F-34296 Montpellier 5, France

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2005年 / 55卷 / 02期

关键词：

nitric oxide; reduction; iron; zeolite ZSM-5; NH3;

D O I：

10.1016/j.apcatb.2004.07.009

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 [物理化学]; 081704 [应用化学];

摘要：

Fe-ZSM-5 catalysts, prepared by different methods, have been characterized by TPR and XRD and tested in the NO-SCR by NH3. The sublimation method leads to the most active catalysts. Nevertheless the preparation starting from Fe(acac)(3), which is a preparation easy to implement from an industrial point of view, seems to be a very attractive alternative way. Oil the most active catalyst, Fe(0.83)(sub)ZSM-5, prepared starting from FeCl3, a study of the mechanism was undertaken. In the initial step of the SCR reaction, the oxidation of NO in NO2, the re-oxidation of Fell species in the active iron oxo species is the slow phase. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：149 / 155

页数：7

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