Hollow Fibres CFD modelling*

This work deals with the numerical implementation of a multi-component diffusion model in a selective permeability membrane. The tools developed allow to establish a complete numerical methodology for the analysis of the mechanism of selective permeability in the separation of gases in the CO2 , CH4 mixture. Additionally, we implemented a boundary condition on the membrane surface to model the concentration polarization. The main consequence of the concentration polarization is the reduction of the permeate flow, increasing the osmotic pressure on the feed side of the membrane owing to the surface layer.