Adsorption Equilibria of Water Vapor on Zeolite 3A, Zeolite 13X, and Dealuminated Y Zeolite

The adsorption equilibria of water vapor on zeolite 3A, zeolite 13X, and dealuminated Y zeolite (DAY) were measured using a volumetric method. Equilibrium experiments were conducted at 293.15, 303.15, and 313.15 K and at relative pressure (P/P-s) up to 0.95. Experimental data were correlated using Aranovich-Donohue and Frenkel-Halsey-Hill models, using Langmuir, Toth, UNILAN, and Sips isotherms.