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Adsorption

Erschienen in:

03.06.2019

Local composition activity coefficient model for mixed-gas adsorption equilibria

verfasst von: Harnoor Kaur, Hla Tun, Michael Sees, Chau-Chyun Chen

Erschienen in: Adsorption | Ausgabe 5/2019

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Abstract

Taking into consideration the adsorbate–adsorbent interactions, a novel activity coefficient model is derived from the non-random two-liquid theory for mixed-gas adsorption equilibria. In contrast with the conventional activity coefficient models developed for bulk liquids, the new model correctly predicts negative deviations from ideality for adsorbed phase mixtures including azeotropic behavior exhibited by selected gas-adsorbent systems. Requiring a single binary interaction parameter per adsorbate–adsorbate pair, the model successfully correlates wide varieties of binary adsorption isotherm data and it should be a powerful engineering thermodynamic tool in correlating and predicting mixed-gas adsorption equilibria.

Vorheriger Artikel Systematic study of the excess and the absolute adsorption of N2/H2 and CO2/H2 mixtures on Cu-BTC

Nächster Artikel Sorption of carbon dioxide on the lithotypes of low rank coal

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Titel: Local composition activity coefficient model for mixed-gas adsorption equilibria
verfasst von: Harnoor Kaur
Hla Tun
Michael Sees
Chau-Chyun Chen
Publikationsdatum: 03.06.2019
Verlag: Springer US
Erschienen in: Adsorption / Ausgabe 5/2019
Print ISSN: 0929-5607
Elektronische ISSN: 1572-8757
DOI: https://doi.org/10.1007/s10450-019-00127-0

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