Static Adsorption, by Activated Carbons, of Vapour Mixtures Corresponding to Immiscible Liquids

It is shown that the static adsorption of benzene and water vapours by a typical industrial active carbon can be described by the model of independent co-adsorption proposed for compounds which are not miscible in the liquid state. The model assumes that the vapours are adsorbed according to their r...

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Main Authors: D. Wintgens, A. Lavanchy, F. Stoeckli
Format: Article
Language:English
Published: SAGE Publications 1999-10-01
Series:Adsorption Science & Technology
Online Access:https://doi.org/10.1177/026361749901700906
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author D. Wintgens
A. Lavanchy
F. Stoeckli
author_facet D. Wintgens
A. Lavanchy
F. Stoeckli
author_sort D. Wintgens
collection DOAJ
description It is shown that the static adsorption of benzene and water vapours by a typical industrial active carbon can be described by the model of independent co-adsorption proposed for compounds which are not miscible in the liquid state. The model assumes that the vapours are adsorbed according to their respective DA isotherms, each component using the micropore volume left unoccupied by the other. A good agreement is found between the calculated and the experimental adsorption, but in the case of water the model must take into account the decrease of the characteristic energy E(H 2 O) with increasing co-adsorption of benzene. This behaviour is confirmed by earlier studies of water adsorption and of immersion calorimetry into water, following variable pre-adsorption of n-nonane.
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spelling doaj.art-60bb2e1995b74622898965eb230a53152024-03-03T08:19:38ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40381999-10-011710.1177/026361749901700906Static Adsorption, by Activated Carbons, of Vapour Mixtures Corresponding to Immiscible LiquidsD. Wintgens0A. Lavanchy1F. Stoeckli2 Chemistry Department of the University, Avenue de Bellevaux 51, CH-2000 Neuchâtel, Switzerland NC-Laboratory, 3700 Spiez, Switzerland Chemistry Department of the University, Avenue de Bellevaux 51, CH-2000 Neuchâtel, SwitzerlandIt is shown that the static adsorption of benzene and water vapours by a typical industrial active carbon can be described by the model of independent co-adsorption proposed for compounds which are not miscible in the liquid state. The model assumes that the vapours are adsorbed according to their respective DA isotherms, each component using the micropore volume left unoccupied by the other. A good agreement is found between the calculated and the experimental adsorption, but in the case of water the model must take into account the decrease of the characteristic energy E(H 2 O) with increasing co-adsorption of benzene. This behaviour is confirmed by earlier studies of water adsorption and of immersion calorimetry into water, following variable pre-adsorption of n-nonane.https://doi.org/10.1177/026361749901700906
spellingShingle D. Wintgens
A. Lavanchy
F. Stoeckli
Static Adsorption, by Activated Carbons, of Vapour Mixtures Corresponding to Immiscible Liquids
Adsorption Science & Technology
title Static Adsorption, by Activated Carbons, of Vapour Mixtures Corresponding to Immiscible Liquids
title_full Static Adsorption, by Activated Carbons, of Vapour Mixtures Corresponding to Immiscible Liquids
title_fullStr Static Adsorption, by Activated Carbons, of Vapour Mixtures Corresponding to Immiscible Liquids
title_full_unstemmed Static Adsorption, by Activated Carbons, of Vapour Mixtures Corresponding to Immiscible Liquids
title_short Static Adsorption, by Activated Carbons, of Vapour Mixtures Corresponding to Immiscible Liquids
title_sort static adsorption by activated carbons of vapour mixtures corresponding to immiscible liquids
url https://doi.org/10.1177/026361749901700906
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AT fstoeckli staticadsorptionbyactivatedcarbonsofvapourmixturescorrespondingtoimmiscibleliquids