Abstract
The influence of heterogeneity parameters on the shape of excess adsorption isotherms has been discussed. These isotherms have been calculated according to the equations corresponding to different energy distributions. Next, the isotherm equations have been applied to examine the experimental excess isotherms for 1-tetradecene/dodecane mixture adsorption on different types ofX-zeolites at 293 K, 313 K and 333 K. The zeolite samples have been prepared from NaX-zeolite by exchanging the sodium ions for ions of alkalines and calcium group. Analysis of the above adsorption data by means of different isotherm equations showed that the parameters of aDubinin-Radushkevich-type equation change correctly with temperature and the contents of alkalines in the zeolite samples.
Zusammenfassung
Es wird der Einfluß der Heterogenitätsparameter auf die Form der Excessadsorptionsisothermen diskutiert. Diese Isothermen werden nach Gleichungen berechnet, die unterschiedlichen Energieverteilungen entsprechen. Die Isothermengleichungen werden auf experimentelle Excessisothermen für die Adsorption von 1-Tetradecen/Dodecan-Gemischen an verschiedenenX-Zeolithen bei 293 K, 313 K und 333 K angewendet. Die Zeolithe wurden durch Ionenaustausch der Natriumionen gegen Ionen der Alkali- und Erdalkaligruppe hergestellt. Die Analyse der Daten mit Hilfe der unterschiedlichen Isothermengleichungen zeigt, daß sich die Parameter einerDubinin-Radushkevich-Gleichung korrekt mit der Temperatur und dem Gehalt an Alkalikationen in den Zeolithen ändern.
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Jaroniec, M., Marczewski, A.W., Einicke, W.D. et al. Adsorption of 1-tetradecene/dodecane mixtures on different types of zeolites. Monatsh Chem 114, 857–873 (1983). https://doi.org/10.1007/BF00799948
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DOI: https://doi.org/10.1007/BF00799948