March 28, 2024
Ali Izadbakhsh

Ali Izadbakhsh

Academic Rank: Assistant professor
Address:
Degree: Ph.D in Chemical Engineering
Phone: 2607
Faculty: Faculty of Petroleum, Gas and Petrochemical Engineering

Research

Title Simulation of activity loss of fixed bed catalytic reactor of MTO conversion using percolation theory
Type Article
Keywords
Journal CHEMICAL ENGINEERING SCIENCE
DOI
Researchers Ali Izadbakhsh (First researcher) ,

Abstract

In this investigation, a reactor model for prediction of the deactivation behavior of MTO’s porous catalyst in a fixed bed reactor is developed. Effect of coking on molecular transport in the porous structure of SAPO-34 has been simulated using the percolation theory. Thermal effects of the reaction were considered in the model and the temperature profile of the gas stream in the reactor was predicted. The predicted loss in catalyst activity with time-on-stream was in very good agreement with the experimental data. The resulting coke deposition and gas temperature profiles along the length of reactor suggested are action front moving toward the outlet of the fixed bed reactor at the operating experimental conditions of 1h-1 and 723 K for methanol space velocity and inlet temperature, respectively. Effects of space time, coordination of Bethe network, and effective diffusivity of component in reaction mixture on the reactor performance are presented.