✦ LIBER ✦

Multiple oxidation reactions and diffusion in the catalytic layer of monolith reactors

✍ Scribed by Kyriacos Zygourakis; Rutherford Aris

Publisher: Elsevier Science
Year: 1983
Tongue: English
Weight: 932 KB
Volume: 38
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(83)80184-5

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✦ Synopsis

Oxidation reactions of mobile exhaust gas in a catalytic monolith are considered in this paper. The exhaust gas is deseribed by four concentrations, namely those of the carbon monoxide, fast-and slow-oxidizing hydrocarbons and hydrogen. The problem of multiple reactions and diffusion in the catalytic layer of the monolith walls is studied first. The diffusional resistance of the catalytic layer is often significant in spite of its thinness and it seems important to allow for both the hydrogen and hydrocarbon oxidation reactions in analyzing the system for steady-state. The influence of hydrogen on the multiplicity of steady-state wall temperatures is also studied and it is found to be important, because hydrogen reacts rapidly at lower temperatures.

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