Reviews of topical problems

Nonequilibrium thermodynamics of autowave processes in a catalyst bed

G.K. Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, prosp. akad. Lavrenteva 5, Novosibirsk, 630090, Russian Federation

A new description of the nature of autowave processes in a static catalyst bed is reviewed by analyzing two kinds of autowaves, fast and slow heat waves. The thermodynamic description of physico-chemical processes is considered and the entropy balance equation is constructed and analyzed taking the quasi-homogeneous (basic) model of an immobile catalyst bed as an approximation. For slow heat waves, the extremal autowave solution functional (total entropy production in the system) is found and a variational formulation of the problem is given. A space-time dissipative structure (a fast heat wave) is shown to exist near the system’s thermodynamic equilibrium.

Fulltext is available at IOP
PACS: 05.45.−a, 05.70.Ln, 82.40.−g (all)
DOI: 10.1070/PU2004v047n10ABEH001770
Citation: Gerasev A P "Nonequilibrium thermodynamics of autowave processes in a catalyst bed" Phys. Usp. 47 991–1016 (2004)
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Оригинал: Герасев А П «Неравновесная термодинамика автоволновых процессов в слое катализатора» УФН 174 1061–1087 (2004); DOI: 10.3367/UFNr.0174.200410b.1061

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