Abstract
A study of the adsorption of n-alcohol/water mixtures onto zeolite NaZSM-5 from solution was performed. The excess isotherms were measured at 293 K. Adsorption equilibrium constants and molar heats of immersion strongly depend on the carbon number of the alcohol. The limiting adsorption estimated from the excess isotherm was independent of the carbon number 130 mg/g. The model for the adsorption of binary liquid mixtures of nonelectrolytes, involving differences in the molecular sizes of the components and the real behavior of the mixture in bulk and surface phases, is used to describe the excess adsorption data.
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