Problem in modeling membrane gas separation
 

Dear all,
I want to simulate membrane gas absorption for separating CO2 from CH4. I have tried to use porous media in fluent but i get some problem. I can't define diffusivity and solubility of gas in membrane. we know that these parameter are the key in separatioon mechanism (solution diffusion mechanism). can anybody help me to solve this problem?
thank you very much


Best regard,


Ahmad nurul hakim
gembel_tekkim05@yahoo.co.id