LrgpV1, Main, Exploration, bibRecord, 002878

On the coupling effect in pervaporation

Identifieur interne : 002878 ( Main/Exploration ); précédent : 002877; suivant : 002879

On the coupling effect in pervaporation

Auteurs : Enrico Drioli [Italie] ; Shimin Zhang [Italie] ; Angelo Basile [Italie]

Source :

Journal of Membrane Science [ 0376-7388 ] ; 1993.

RBID : ISTEX:9F67F2E9480D62B705E065E433BCD16A62B25681

Descripteurs français

Wicri :
- topic : Industrie chimique, éthanol, Polymère.

English descriptors

KwdEn :
- Actual permeation, Bakish, Bakish materials corporation, Binary, Binary mixture, Chemical industry, Coefficient, Deviation coefficient, Deviation coefficients, Dimensionless deviation coefficient, Drioli, Ethanol, Experimental data, Feed composition, Feed plot, Free volume, Hydrophilic groups, Ideal separation factor, Ideal situation, Maximum value, Membrane, Membrane polymer, Molar, Molecule, Other component, Partial permeation rates, Penetrant, Penetrant molecules, Penetrants, Permeation, Permeation data, Permeation rate, Permeation rates, Permeation ratio, Pervap, Pervaporation, Phase boundary, Polymer, Pure components, Pure pyridine, Pyridine, Pyridine concentration, Pyridine molecules, Pyridine permeation, Separation factor, Sorption, Strong interaction, Thermodynamic interaction, Total permeation rate, Vapor pressure, Water molecules.
Teeft :
- Actual permeation, Bakish, Bakish materials corporation, Binary, Binary mixture, Chemical industry, Coefficient, Deviation coefficient, Deviation coefficients, Dimensionless deviation coefficient, Drioli, Ethanol, Experimental data, Feed composition, Feed plot, Free volume, Hydrophilic groups, Ideal separation factor, Ideal situation, Maximum value, Membrane, Membrane polymer, Molar, Molecule, Other component, Partial permeation rates, Penetrant, Penetrant molecules, Penetrants, Permeation, Permeation data, Permeation rate, Permeation rates, Permeation ratio, Pervap, Pervaporation, Phase boundary, Polymer, Pure components, Pure pyridine, Pyridine, Pyridine concentration, Pyridine molecules, Pyridine permeation, Separation factor, Sorption, Strong interaction, Thermodynamic interaction, Total permeation rate, Vapor pressure, Water molecules.

Abstract

Abstract: Coupled transport often takes place in pervaporation of multicomponent mixtures due to strong interaction between membrane and penetrants. In this paper, the ideal separation factor αIi/j, deviation coefficient ϵ, and molar normalized permeation rate Jn are introduced to described the coupling effect. ϵ > 1 indicates enhanced transport and conversely ϵ < 1 indicates inhibited transport. The sorption of penetrant components in membranes and the orientation of the dissolved penetrant molecules change the configuration of the microvoids between the polymer chains and cause the facilitation or inhibition of transport of the other component through the membrane. Experimental data from literature and our work are expressed as α1i/j, ϵ and/or Jn to analyze binary mixture pervaporation, showing that the new concepts are in agreement with actual permeation.

Url:

https://api.istex.fr/document/9F67F2E9480D62B705E065E433BCD16A62B25681/fulltext/pdf

DOI: 10.1016/0376-7388(93)85030-Z

Affiliations:

Italie

Links toward previous steps (curation, corpus...)

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to stream Main, to step Curation: 002878

Le document en format XML

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<term>Binary mixture</term>
<term>Chemical industry</term>
<term>Coefficient</term>
<term>Deviation coefficient</term>
<term>Deviation coefficients</term>
<term>Dimensionless deviation coefficient</term>
<term>Drioli</term>
<term>Ethanol</term>
<term>Experimental data</term>
<term>Feed composition</term>
<term>Feed plot</term>
<term>Free volume</term>
<term>Hydrophilic groups</term>
<term>Ideal separation factor</term>
<term>Ideal situation</term>
<term>Maximum value</term>
<term>Membrane</term>
<term>Membrane polymer</term>
<term>Molar</term>
<term>Molecule</term>
<term>Other component</term>
<term>Partial permeation rates</term>
<term>Penetrant</term>
<term>Penetrant molecules</term>
<term>Penetrants</term>
<term>Permeation</term>
<term>Permeation data</term>
<term>Permeation rate</term>
<term>Permeation rates</term>
<term>Permeation ratio</term>
<term>Pervap</term>
<term>Pervaporation</term>
<term>Phase boundary</term>
<term>Polymer</term>
<term>Pure components</term>
<term>Pure pyridine</term>
<term>Pyridine</term>
<term>Pyridine concentration</term>
<term>Pyridine molecules</term>
<term>Pyridine permeation</term>
<term>Separation factor</term>
<term>Sorption</term>
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<term>Binary mixture</term>
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<term>Coefficient</term>
<term>Deviation coefficient</term>
<term>Deviation coefficients</term>
<term>Dimensionless deviation coefficient</term>
<term>Drioli</term>
<term>Ethanol</term>
<term>Experimental data</term>
<term>Feed composition</term>
<term>Feed plot</term>
<term>Free volume</term>
<term>Hydrophilic groups</term>
<term>Ideal separation factor</term>
<term>Ideal situation</term>
<term>Maximum value</term>
<term>Membrane</term>
<term>Membrane polymer</term>
<term>Molar</term>
<term>Molecule</term>
<term>Other component</term>
<term>Partial permeation rates</term>
<term>Penetrant</term>
<term>Penetrant molecules</term>
<term>Penetrants</term>
<term>Permeation</term>
<term>Permeation data</term>
<term>Permeation rate</term>
<term>Permeation rates</term>
<term>Permeation ratio</term>
<term>Pervap</term>
<term>Pervaporation</term>
<term>Phase boundary</term>
<term>Polymer</term>
<term>Pure components</term>
<term>Pure pyridine</term>
<term>Pyridine</term>
<term>Pyridine concentration</term>
<term>Pyridine molecules</term>
<term>Pyridine permeation</term>
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<front><div type="abstract" xml:lang="en">Abstract: Coupled transport often takes place in pervaporation of multicomponent mixtures due to strong interaction between membrane and penetrants. In this paper, the ideal separation factor αIi/j, deviation coefficient ϵ, and molar normalized permeation rate Jn are introduced to described the coupling effect. ϵ > 1 indicates enhanced transport and conversely ϵ < 1 indicates inhibited transport. The sorption of penetrant components in membranes and the orientation of the dissolved penetrant molecules change the configuration of the microvoids between the polymer chains and cause the facilitation or inhibition of transport of the other component through the membrane. Experimental data from literature and our work are expressed as α1i/j, ϵ and/or Jn to analyze binary mixture pervaporation, showing that the new concepts are in agreement with actual permeation.</div>
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On the coupling effect in pervaporation

On the coupling effect in pervaporation

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri