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Modeling and Simulation of Liquid Membrane Separation for Carbon Dioxide from Natural Gas

Hameed Muhamad, Hadil Abu Khalifeh, Omar Chaalal, Dalila Hank, Md Monwar Hossain


A numerical analysis of countercurrent separator unit fitted with a liquid membrane with facilitated transport is presented for the separation of carbon dioxide from natural gas with nitrogen as a sweep gas on the permeate side. Two kinds of liquid membranes are studied: symmetric and asymmetric. A mathematical formulation and calculation procedure using numerical methods to solve material and transport equations is presented for each membrane for predicting the membrane area required to purify a natural gas containing to a desired level of purity. It has been found that the asymmetric liquid membrane provides more membrane area than the symmetric liquid membrane for the same level of separation.


Membrane, modelling and simulation, carbon dioxide, natural gas, separation.

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