COMSOL simulations using a comprehensive model for gas fluidized-bed reactors

Mahecha-Botero, A., Elnashaie, S.S.E.H., Grace, J.R., Lim, C.J.
Department of Chemical and Biological Engineering, University of British Columbia, East Mall, Vancouver, BC, Canada

COMSOL (formerly FEMLAB) is being utilized to solve partial differential equations simulating fluidized bed reactors as part of the development of a novel generalized fluidized-bed catalytic reactor model. Simulations are carried out to account for complex dynamic transport and hydrodynamic phenomena such as: heat and mass axial and radial anisotropic dispersion, temperature and pressure profiles, interphase mass and heat transfer, different hydrodynamic flow regimes, catalyst deactivation and membrane permselection.

The model is currently simulated to investigate some of the characteristics of oxy-chlorination fluidizedbed reactors for the production of ethylene dichloride from ethylene.