a niaei - Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, ۲. Department of Inorganic
m khatainian - Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz
d salari - Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz
p fathi jokandan - Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz

This paper deals with a lumped model for methanol conversion to olefins (MTO process) at atmospheric pressure and over a temperature range of 673-773 K. The kinetic scheme used in this work for the MTO process groups the components into lumps and is based on that proposed for MTG process by Schipper and Krambeck (1986). In this paper applicability of the computational fluid dynamics (CFD) simulation for catalytic conversion in fixed bed reactors has been shown and details of the CFD models and reaction model are explained in the following. The simulations were carried out in an isothermal reactor with feeds of methanol and water in different mass ratios. Methanol was used as feedstock and water was used for attenuating the coke formation.

H-ZSM-5 zeolite; Fixed bed; MTO process; CFD simulation