PREDICTION OF BINARY ADSORPTION EQUILIBRIA OF SOLVENT AND WATER VAPOR ON ACTIVATED CARBON

Abstract

A new method is proposed to predict adsorption equilibria of mixtures of solvent and water vapor on activated carbon. It is based on evaluating the amounts of solvent and water in the capillary condensed phase in the fine pores and in the ordinary adsorbed phase in the coarse pores, respectively. Predicted results are compared with experimental ones on two kinds of activated carbons having different pore-size distributions for water-soluble solvents (methanol and acetone) and water-insoluble solvents (benzene and toluene), respectively. Both results agree fairly well.