Application of the TAP-2 reactor and FTIR in elucidating the mechanism of NO2 reduction by propene over an acidic mordenite

被引：26

作者：

Gerlach, T ^{[1
]}

Baerns, M ^{[1
]}

机构：

[1] Inst Appl Chem Berlin Adlershof, D-12484 Berlin, Germany

来源：

CHEMICAL ENGINEERING SCIENCE | 1999年 / 54卷 / 20期

关键词：

TAP reactor pulse method in vacuo; FTIR; NOx reduction by propene; intermediates of NO2 reduction;

D O I：

10.1016/S0009-2509(99)00037-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A vacuum pulse method (Temporal-Analysis-of-Products (TAP) reactor) and in situ FTIR were applied to study the mechanism of the reduction of NO2 to N-2, by C3H6 over an acidic H-mordenite catalyst. An adsorbed nitrile is formed on the catalyst surface presumably via a nitro or nitroso compound of propene. Upon reaction with water the nitrile yields adsorbed ammonium ions. Ammonium ions on the surface form nitrogen upon reaction with NO2 and may therefore be considered as the decisive intermediate of NO2 reduction by propylene over acidic mordenite catalysts. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：4379 / 4384

页数：6

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