A Kinetic Model of the Epoxidation of Ethylene

Harold H. Kung

doi:10.1080/00986449208936083

A Kinetic Model of the Epoxidation of Ethylene

Harold H. Kung^*

^*Corresponding author for this work

Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

A generalized kinetic model was proposed to describe the kinetics and the deuterium kinetic isotope effect of the epoxidation of ethylene on silver catalysts. The model assumed that ethylene and oxygen adsorbed on different sites, and took into account the overall stoichiometry of the reaction. From the model, it was concluded that the rate of reaction was not limited by the rate of adsorption of oxygen, in spite of the low sticking coefficient of oxygen, and that deuterium labelling of ethylene could result in changes in the surface concentrations of intermediates. This latter point needs to be considered in interpreting kinetic isotope effects in the formation of each of the products.

Original language	English (US)
Pages (from-to)	17-24
Number of pages	8
Journal	Chemical Engineering Communications
Volume	118
Issue number	1
DOIs	https://doi.org/10.1080/00986449208936083
State	Published - Nov 1 1992

Keywords

Epoxidation kinetics model
Kinetic analysis of ethylene epoxidation

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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abstract = "A generalized kinetic model was proposed to describe the kinetics and the deuterium kinetic isotope effect of the epoxidation of ethylene on silver catalysts. The model assumed that ethylene and oxygen adsorbed on different sites, and took into account the overall stoichiometry of the reaction. From the model, it was concluded that the rate of reaction was not limited by the rate of adsorption of oxygen, in spite of the low sticking coefficient of oxygen, and that deuterium labelling of ethylene could result in changes in the surface concentrations of intermediates. This latter point needs to be considered in interpreting kinetic isotope effects in the formation of each of the products.",

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note = "Funding Information: This work was supported by the Department of Energy, Division of Chemical Sciences. This paper is dedicated to Professor S. George Bankoff for his outstanding service to the chemical engineering community and to Northwestern University.",

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N2 - A generalized kinetic model was proposed to describe the kinetics and the deuterium kinetic isotope effect of the epoxidation of ethylene on silver catalysts. The model assumed that ethylene and oxygen adsorbed on different sites, and took into account the overall stoichiometry of the reaction. From the model, it was concluded that the rate of reaction was not limited by the rate of adsorption of oxygen, in spite of the low sticking coefficient of oxygen, and that deuterium labelling of ethylene could result in changes in the surface concentrations of intermediates. This latter point needs to be considered in interpreting kinetic isotope effects in the formation of each of the products.

AB - A generalized kinetic model was proposed to describe the kinetics and the deuterium kinetic isotope effect of the epoxidation of ethylene on silver catalysts. The model assumed that ethylene and oxygen adsorbed on different sites, and took into account the overall stoichiometry of the reaction. From the model, it was concluded that the rate of reaction was not limited by the rate of adsorption of oxygen, in spite of the low sticking coefficient of oxygen, and that deuterium labelling of ethylene could result in changes in the surface concentrations of intermediates. This latter point needs to be considered in interpreting kinetic isotope effects in the formation of each of the products.

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KW - Kinetic analysis of ethylene epoxidation

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A Kinetic Model of the Epoxidation of Ethylene

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Keywords

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