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Modelling of a periodically operating packed-bed SO2 oxidation reactor at high conversion

โœ Scribed by P.L. Silveston; R.R. Hudgins; S. Bogdashev; N. Vernijakovskaja; Yu.Sh. Matros

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
655 KB
Volume
49
Category
Article
ISSN
0009-2509

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โœฆ Synopsis

Kinetic and mechanistic studies extending over a decade have led researchen at the Institute of Catalysis in Russia to a kinetic as well as a reactor model for SO, oxidation capable of describing the rate of SO, oxidation at high SO, conversion and transient operating conditions. Using kinetic parameters and transport properties obtained for a Russian commercial catalyst, the Institute of Catalysis model was applied to simulate the experiments of Briggs et 01. in which the feed to a packed bed of an industrial, potassium-promoted, vanadia/silica catalyst was periodically switched from an $0,40,4,-N, mixture to air. These experiments displayed rapid temperature excursions on switching and SO, conversions that approached the equilibrium limit. Good agreement of the simulation with the measurements of Briggs et al.

was obtained. This result suggests the Institute of Catalysis model is robust and will be widely appIicable.

INTRODUCTlON

Understanding the mechanism of SO2 oxidation has challenged the experimental skill, theoretical knowledge and ingenuity of scientists for many decades. In recent years, progress has been rapid (

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