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Application of kinetic investigations for interpretation ofn-hexane and benzene adsorption on active carbon

Anwendung kinetischer Untersuchungen zur Interpretation des Adsorptionsverhaltens vonn-Hexan und Benzol an Aktivkohle

  • Anorganische Und Physikalische Chemie
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Abstract

Differencies between the mechanism ofn-hexane and benzene adsorption on active carbon were investigated on the ground of kinetic measurements. As it has been stated, the kinetic measurements show fundamental differencies between the mechanism of adsorption in spite of analogy existing in the state of adsorption equilibrium. Within the range investigated, only the adsorption ofn-hexane follows the model of volume filling of micropores. Existence of those differencies is also confirmed by measurements of effective diffusion coefficient values as well as changes of activation energy of the diffusion—adsorption process.

Zusammenfassung

Mittels kinetischer Messungen untersuchte man die Unterschiede im Mechanismus des Adsorptionsverlaufes vonn-Hexan und Benzol an Aktivkohle. Man stellte fest, daß trotz der Analogie im Adsorptionsgleichgewichtszustand die kinetischen Messungen auf prinzipielle Unterschiede im Adsorptionsmechanismus hinweisen. Im untersuchten Bereich verläuft nur die Adsorption vonn-Hexane nach dem Modell der Mikroporenvolumenausfüllung. Die auftretenden Unterschiede wurden auch durch die Berechnungen der Werte der effektiven Diffusionskoeffizienten sowie Änderungen der Aktivierungsenergie des Diffusions-Adsorptionsprozesses bestätigt.

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Authors and Affiliations

  1. Chemical Institute, Nicholas Copernicus University of Toruń, PL-87100, Toruń, Poland

    Michał Rozwadowski & K. E. Wiśniewski

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  1. Michał Rozwadowski
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  2. K. E. Wiśniewski
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Rozwadowski, M., Wiśniewski, K.E. Application of kinetic investigations for interpretation ofn-hexane and benzene adsorption on active carbon. Monatsh Chem 115, 271–281 (1984). https://doi.org/10.1007/BF00798799

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  • DOI: https://doi.org/10.1007/BF00798799

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