JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Print ISSN : 0021-9592
STUDY OF MULTIPLE STEADY STATES IN SINGLE PELLET OF CATALYST
ETHYLENE HYDROGENATION REACTION ON PELLETIZED ADKINS5 CATALYST
TAKEHIKO FURUSAWADAIZO KUNII
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1971 Volume 4 Issue 3 Pages 274-280

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Abstract

Multiple steady states of a catalytic reaction were studied experimentally in the hydrogenation of ethylene on a single pellet of Adkins catalyst, obtaining apparent kinetic expression of the reaction. Mechanism of the formation of sigmoida! shape of heaf generation curve was investigated. This has been attributed to the mass and heat transfer resistances across the film as well as in the particle. However the present experiments have shown that the change of apparent activation energy due to adsorption term should be emphasized more in explaining the heat generation curves.
The effect of initial condition on steady state activity is also discussed. It was found that this bistability could be attributed to thermal instability combined with concentration stability resulting from the Langmuir-Hinshelwood mechanism.

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© The Society of Chemical Engineers, Japan
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