DYNAMIC ADSORPTION OF VAPOR MIXTURES IN ACTIVE-CARBON BEDS DESCRIBED BY THE MYERS-PRAUSNITZ AND DUBININ THEORIES

The adsorption of binary vapour mixtures from air by active carbon bed s can be predicted with a good accuracy by adapting a model developed earlier for single vapours. This model is based on a semi-implicit fin ite difference scheme. Multiple adsorption of vapours is described by the combined theories of Myers-Prausnitz and of Dubinin (MPD), which h ave already been applied successfully to static adsorption. A good agr eement is found between the predicted and the experimental breakthroug h curves of the systems 2-chloropropane + chlorobenzene and carbon tet rachloride + chlorobenzene on two activated carbons at 298 K and under different experimental conditions. (C) 1997 Elsevier Science Ltd.