Three-site lattice gas model for adsorption of binary aromatic mixtures insilicalite

Adsorption of the binary benzene/p-xylene mixture in silicalite is studied by means of a generalized version of the homogeneous three-site lattice gas model. The energy parameters found during fitting of single-component expe rimental isotherms are used as the input data for the mixed adsorption data fitting procedure. The obtained results include single and mixed adsorptio n isotherms, isothermal-isobaric phase diagrams, and partial isotherms of b enzene and p-xylene adsorption in silicalite. Theoretical predictions of th e lattice gas model are compared with the experimental data reported by Li and Talu.