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Abstract
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In this investigation, a comprehensive 2D mathematical model based on the finite element method (FEM) is offer for the modeling of gas-solvent membrane contactor for the removal of CO2 gas from syngas. Aqueous monoethanolamine solution was used as the absorbent solvent flow and CO2/N2 gas mixture was used as the gas flow. The solvent absorbing solution flows in the fiber bore and the gas mixture circulates counter-currently to the solvent flow in the shell side. viceversa, if The gas mixture flows in the lumen side, then the solvent absorbing solution circulates counter-currently to the gas mixture in the shell side. CFD technique were applied to solve the model equations considering the Non-wetted and partially wetted condition of the membrane. The average outlet CO2 concentrations, the absorption flux, overall mass transfer coefficient and the CO2 removal efficiencies are parametrically simulated by using the operational parameters such as gas and solvent flow rate, porous, temperature, and fiber geometrical characteristics. The get results show that between experimental results and simulation model were in good agreement.
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