MULTICOMPONENT ADSORPTION CALCULATIONS BASED ON ADSORBED SOLUTION THEORY

A new calculation method for multicomponent adsorption equilibria was proposed based on the real adsorbed solution theory (RAST) and the con cept of arbitrary isotherm. According to the latter, we assigned a res pective isotherm, which gave the best fit to single-component equlibri um data, to each component, instead of using a specific type of isothe rm for all adsorbates as in most previous works. This enabled us to ev aluate the spreading pressure for pure components more accurately, whi ch will be used in multicomponent adsorption calculations later. The u sefulness of the proposed method is verified by carrying out sample ca lculations for ternary data reported in literature.