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A dynamic kinetic model for methanol synthesis on deactivated catalyst

Rahimpour, M.R., Bahri, P., Fathi Kaljahi, J., Jahanmiri, A. and Romagnoli, A. (1998) A dynamic kinetic model for methanol synthesis on deactivated catalyst. Computers & Chemical Engineering, 22 . S675-S678.

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A kinetic model for methanol synthesis and the deactivation of catalyst has been proposed. This model is a Langmuir-Hinshelwood-Hougen-Watson type, which has been obtained from an active-site balance and describes the dynamic behavior of the active sites of a deactivated CuZnO commercial catalyst. The parameters of the proposed kinetic model have been determined by fitting the experimentally obtained mole fractions of all components for a wide variety of conditions to the transient mass conservation equation in a gradientless differential reactor. By using this model, the rates of reactions on deactivated catalyst have been obtained as a function of time. The results show that catalyst deactivation depends on the composition of CO2 and water. Also, it is found that by enriching synthesis gas with CO2 through a dynamic feeding strategy, the conversion of the reactor will be increased.

Publication Type: Journal Article
Murdoch Affiliation: School of Engineering
Publisher: Elsevier
Copyright: © 1998 Published by Elsevier Ltd.
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