MULTICOMPONENT ADSORPTION EQUILIBRIUM OF ETHYLENE, PROPANE, PROPYLENEAND CO2 ON 13X-ZEOLITE

Experimental adsorption isotherms of binary, ternary and quaternary mi xtures of ethylene, propane, propylene and CO2 on 13X zeolite have bee n obtained at 293 K. Experimental data of mixtures were fitted to thre e theoretical models, the ideal adsorbed solution (IAS), real adsorbed solution (RAS) and spreading pressure dependence (SPD) models to repr oduce and predict equilibrium data. With the SPD model, two other temp eratures were also studied, 279 and 308 K, in order to calculate the m odel parameters. The best models for binary and multicomponent mixture s showing the highest deviation from ideality were RAS and SPD, with R AS better than SPD for ternary mixtures.