In the present study, ethylbenzene dehydrogenation to styrene monomer over a potassium-promoted iron oxide catalyst in radial fixed bed reactor was simulated. The pseudo-heterogeneous model was employed to predict ethylbenzene conversion and selectivity of styrene monomer, toluene, and benzene. The simulation results showed that deactivation of catalysts causes reduction in the reaction zone; therefore, the ethylbenzene conversion decreases. It is proposed that, for compensating the conversion reduction, the feed temperature is increased 1 °C per 5 cm of deactivated length. Simulation results are in good agreement with the experimental data obtained from real plant.
Liu, B. S.; Rui, G.; Chang, R. Z.; Au, C. T.Appl. Catal., A2008, 335, 88–94.
Liu, B. S.; Rui, G.; Chang, R. Z.; Au, C. T.Appl. Catal., A2008, 335, 88–94.)| false