Thermodynamic modeling of adsorption at the liquid-solid interface

Adsorptive separation techniques are significantly energy efficient in comparison to conventional thermal such as distillation. Despite extensive research and development activities undertaken for mixed-gas adsorption, the use of adsorption multicomponent liquid mixtures is still limited. A major barrier lack accurate thermodynamic models, which form scientific foundation process simulation systems, making translation industrial scale challenging. In this work, we have rigorously computed surface excess six binary on silica gel at 303 K using frameworks generalized Langmuir isotherm (gL) adsorbed solution theory (AST). The were formed by pair-wise combinations four components: benzene, 1,2-dichloroethane, cyclohexane, n-heptane. We based our calculations considering simultaneous equilibria three phases: saturated vapor phase, bulk phase. composition corresponding phase was estimated Nonrandom Two-Liquid activity coefficient model experimental vapor-liquid data. coefficients central issue thermodynamics, calculated model. Devoid simplifying assumptions, gL AST provide rigorous mixtures.