Question: our aim is to separate a component A froma gaseous mixture of air using an absorption column. Theliquid solvent fed to the column is water
our aim is to separate a component A froma gaseous mixture of air using an absorption column. Theliquid solvent fed to the column is water at deg C At some specific location within the column, you measure the concentration of component A in the gas and liquid phases in terms of mole fractions as and respectively.The gas phase based overall mass transfer coefficient of component A in air is known, and it is equal to Ky xmolmsmole fraction. Equilibrium relation of component A in the gas phase and liquid water is given below. It has been found that percent of the total resistance to mass transfer is in the liquid phase. Assume evaporation of water is neglected and calculate the film mass transfer coefficients in both phases kxand ky the local gas A masstransfer flux NA and the interface mole fractions xAiand yAi Equilibrium curve equation : yAe xAe xAe xAe
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