Binary Adsorption of Vapours in Active Carbons Described by the Combined Theories of Myers—Prausnitz and Dubinin (II)

The new MPD method, described recently, has been applied to the adsorption of benzene +1,2-dichloroethane vapours by a typical active carbon at 293 K. A total of 102 experiments have been carried out for adsorbed mole fractions between 0.06 and 0.94. Good agreement was found between the experimental...

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Main Authors: F. Stoeckli, D. Wintgens, A. Lavanchy, M. Stöckli
Format: Article
Language:English
Published: SAGE Publications 1997-10-01
Series:Adsorption Science & Technology
Online Access:https://doi.org/10.1177/026361749701500904
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author F. Stoeckli
D. Wintgens
A. Lavanchy
M. Stöckli
author_facet F. Stoeckli
D. Wintgens
A. Lavanchy
M. Stöckli
author_sort F. Stoeckli
collection DOAJ
description The new MPD method, described recently, has been applied to the adsorption of benzene +1,2-dichloroethane vapours by a typical active carbon at 293 K. A total of 102 experiments have been carried out for adsorbed mole fractions between 0.06 and 0.94. Good agreement was found between the experimental and calculated values of the selectivity of the carbon for benzene, which decreased as the mole fraction of benzene increased. This variation reflects the heterogeneity of the carbon, which is taken into account by the DR equation. Although the liquid mixture is ideal, deviations from Raoult's law are observed in the adsorbed state, indicating a clear preference for benzene. The values of the activity coefficients obtained from the liquid/solid equilibrium improve the fit of the MPD method.
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spelling doaj.art-462f61b0cc6f4672963ff2cc5f4868072024-03-02T17:14:35ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40381997-10-011510.1177/026361749701500904Binary Adsorption of Vapours in Active Carbons Described by the Combined Theories of Myers—Prausnitz and Dubinin (II)F. Stoeckli0D. Wintgens1A. Lavanchy2M. Stöckli3 Chemistry Department of the University, CH-2000 Neuchâtel, Switzerland Chemistry Department of the University, CH-2000 Neuchâtel, Switzerland NC-Laboratory, CH-3700 Spiez, Switzerland NC-Laboratory, CH-3700 Spiez, SwitzerlandThe new MPD method, described recently, has been applied to the adsorption of benzene +1,2-dichloroethane vapours by a typical active carbon at 293 K. A total of 102 experiments have been carried out for adsorbed mole fractions between 0.06 and 0.94. Good agreement was found between the experimental and calculated values of the selectivity of the carbon for benzene, which decreased as the mole fraction of benzene increased. This variation reflects the heterogeneity of the carbon, which is taken into account by the DR equation. Although the liquid mixture is ideal, deviations from Raoult's law are observed in the adsorbed state, indicating a clear preference for benzene. The values of the activity coefficients obtained from the liquid/solid equilibrium improve the fit of the MPD method.https://doi.org/10.1177/026361749701500904
spellingShingle F. Stoeckli
D. Wintgens
A. Lavanchy
M. Stöckli
Binary Adsorption of Vapours in Active Carbons Described by the Combined Theories of Myers—Prausnitz and Dubinin (II)
Adsorption Science & Technology
title Binary Adsorption of Vapours in Active Carbons Described by the Combined Theories of Myers—Prausnitz and Dubinin (II)
title_full Binary Adsorption of Vapours in Active Carbons Described by the Combined Theories of Myers—Prausnitz and Dubinin (II)
title_fullStr Binary Adsorption of Vapours in Active Carbons Described by the Combined Theories of Myers—Prausnitz and Dubinin (II)
title_full_unstemmed Binary Adsorption of Vapours in Active Carbons Described by the Combined Theories of Myers—Prausnitz and Dubinin (II)
title_short Binary Adsorption of Vapours in Active Carbons Described by the Combined Theories of Myers—Prausnitz and Dubinin (II)
title_sort binary adsorption of vapours in active carbons described by the combined theories of myers prausnitz and dubinin ii
url https://doi.org/10.1177/026361749701500904
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