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Sorption Mechanism of n-Alkane Vapors on Synthetic Zeolite

J. Longauer and J. Dudáš

Department of Chemical and Biochemical Engineering, Faculty of Chemical Technology, Slovak Technical University, CS-812 37 Bratislava


Abstract: The experimental study of the mechanism of physical adsorption of n-alkane vapours on a synthetic zeolite is presented. The applicability of two analytical models predicting the multilayer adsorption is evaluated by means of a rational fractional function used in the classical BET theory as well as the composite exponential function developed by Jovanovic. The results indicate that a multilayer adsorption mechanism occurs in this system already at the beginning of the process, i.e. when only a part of the adsorbent surface area is occupied by a monomolecular adsorbate layer and when the partial pressure of adsorptive is even lower than 1 % in comparison with the saturation pressure of adsorptive at adsorption temperature.

Full paper in Portable Document Format: 463a151.pdf


Chemical Papers 46 (3) 151–153 (1992)

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