Detailed reaction kinetics over commercial three-way catalysts

被引：37

作者：

Kwon, Hyuk Jae

Baik, Joon Hyun

Kwon, Yong Tak

Nam, In-Sik

Oh, Se H.

机构：

[1] POSTECH, Sch Environm Sci & Engn, Dept Chem Endocrinol, Pohang 790784, South Korea

[2] Gen Motors R&D Planning Ctr, Warren, MI 48090 USA

来源：

CHEMICAL ENGINEERING SCIENCE | 2007年 / 62卷 / 18-20期

关键词：

catalysis; environment; kinetics; modeling; reaction engineering; three-way catalyst (TWC);

D O I：

10.1016/j.ces.2007.01.082

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A detailed reaction kinetic model to predict the activity of the commercial three-way catalyst (TWC), particularly 4k miles aged catalyst in an engine dynamometer, has been developed by considering all possible reactions in the catalytic converter based upon the Langmuir-Hinshelwood mechanism. The model predictions adequately describe the general trend of the measured conversions of CO, C3H6, NO and H-2 center dot NH3 and N2O formed during the reaction can also be predicted by the model. Moreover, the decrease in activity of the 100k miles aged catalyst can be well described by the model developed in the present study. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：5042 / 5047

页数：6

共 15 条

[1]

BABA N, 2000, SAE TECHNICAL PAPER

[2]

BAIK JH, 2005, REACTION KINETICS OV

[3] Kinetic considerations of three-way catalysis in automobile exhaust converters [J].