Kinetic considerations of H2 assisted hydrocarbon selective catalytic reduction of NO over Ag/Al2O3 -: II.: Kinetic modelling

被引：21
|
作者：
Backman, Henrik [1 ]
Arve, Kalle [1 ]
Klingstedt, Fredrik [1 ]
Murzin, Dmitry Yu. [1 ]
机构：
[1] Abo Akad Univ, Proc Chem Ctr, Lab Ind Chem, FIN-20500 Turku, Finland
来源：
APPLIED CATALYSIS A-GENERAL | 2006年 / 304卷 / 01期
关键词：
HC-SCR; hydrogen effect; silver; kinetic modelling;
D O I：
10.1016/j.apcata.2006.02.028
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：
A kinetic study of the reduction of NO by n-octane performed isothermally (200 degrees C) at steady state conditions over an active Ag/alumina catalyst was carried out in the presence of hydrogen. The mathematical model was based on a supposed reaction mechanism, which among other steps includes molecular adsorption of NO and CO as well as dissociative adsorption of H-2 and O-2. Formation of CO2 is assumed to go through oxidation of CO. A comparison between experimental data and simulations revealed that the developed mathematical model is able to describe the observed reduction of NO in presence of H2 sufficiently well. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：86 / 92
页数：7
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