CFD Simulation of CO2-CH4 Mixture Separation by SAPO-34 Tubular Membrane
Paper ID : 1370-MST2015-FULL
Authors:
Fatemeh Banitaba1, Shohre Fatemi *2
1university of Tehran
2University of Tehran
Abstract:
Modeling separation of CO2 from CH4 using Silico-Alumino Phosphate-34 (SAPO-34) tubular membrane was performed by computational fluid dynamics (CFD). The diffusion model was considered on the base of adsorption-diffusion through the tubular membrane module. The Maxwell-Stefan equations were used to describe the permeate flux through the membrane due to surface diffusion and Langmuir adsorption isotherms were employed for equilibrium surface adsorption. Three-dimensional Navier-Stokes momentum balances in feed and permeate side coupled with diffusion-adsorption equations from the membrane were simultaneously solved by ANSYS FLUENT software. The velocity and concentration profiles were determined in both feed and permeate sides. Comparison with experimental data revealed that there is good agreement between simulation and experimental results and the concentration polarization effect was shown in the results.
Keywords:
Ansys Fluent, Zeolite Membrane, diffusion-adsorption, SAPO-34, CO2-CH4 separation
Status : Paper Accepted (Poster Presentation)