Mathematical modelling of catalytic monolithic reactors with storage of reaction components on the catalyst surface

被引：27

作者：

Jirát, J ^{[1
]}

Kubícek, M

Marek, M

机构：

[1] Prague Inst Chem Technol, Dept Chem Engn, Ctr Nonlinear Dynam Chem & Biol Syst, CR-16628 Prague 6, Czech Republic

[2] Prague Inst Chem Technol, Dept Math, Ctr Nonlinear Dynam Chem & Biol Syst, CR-16628 Prague, Czech Republic

来源：

CATALYSIS TODAY | 1999年 / 53卷 / 04期

关键词：

periodic operation; mathematical modelling; NOx storage; oxygen storage; catalytic monolith reactor;

D O I：

10.1016/S0920-5861(99)00146-7

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Effects of periodic switching between lean and rich combustion conditions on CO, HC and NOx conversion on a monolithic catalyst with NOx storage were simulated by mathematical model. The model includes description of oxygen and NOx storage on the washcoat. Parametric study showed possibility to reach much improved time-averaged NOx conversion on a single monolith in comparison with steady-state operation, but lower CO and HCs conversions under reducing (rich) conditions. Sequence of monoliths, the first one with NOx storage catalyst and the second one with oxidizing catalyst, then enables to obtain satisfactory conversions of all pollutants. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：583 / 596

页数：14

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