Question: Your aim is to separate a component A from a gaseous mixture of air using an absorption column. The liquid solvent fed to the column
Your aim is to separate a component A from a gaseous mixture of air using an absorption column. The liquid solvent fed to the column is water at 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 smole fraction. Equilibrium relation of component 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 and the local gas A masstransfer flux and the interface mole fractions and :
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