Determination of kinetic expressions from the frequency response of a catalytic reactor - theoretical and experimental investigations

被引：0
|
作者：
Garayhi, AR [1 ]
Keil, FJ [1 ]
机构：
[1] Tech Univ Hamburg Harburg, Dept Chem Engn, D-21071 Hamburg, Germany
来源：
CHEMICAL ENGINEERING SCIENCE | 2001年 / 56卷 / 04期
关键词：
D O I：
10.1016/S0009-2509(00)00354-7
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A new technique is presented for the investigation of non-stationary reaction systems. Reliable quantitative information is obtained for the description of non-stationary operation. A detailed description of the reaction mechanism is possible and different mechanisms with the same steady-state behavior can be discriminated. Two models for the evaluation are presented, an analytical expression for a fast parameter determination and a rigorous approach for the determination of the elementary kinetic expressions. The new technique is used for the investigation of the total combustion of diluted methane on a Pd-support catalyst. A Langmuir-Hinshelwood mechanism was found, a Eley-Rideal mechanism could be excluded. The detailed chemical mechanism is presented and kinetic constants for the elementary steps are determined. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1317 / 1325
页数：9
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