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Journal of Porous Media
Facteur d'impact: 1.49 Facteur d'impact sur 5 ans: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN Imprimer: 1091-028X
ISSN En ligne: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v12.i8.20
pages 749-757

Influence of the Multilayer Nature of a Composite Membrane on Mass Transfer

A. Hussain
Center for Chemical Engineering & Material Sciences (CCE&MS), National University of Science & Technology (NUST), Islamabad, Pakistan
A. Seidel-Morgenstern
Institute of Process Engineering, Otto-von-Guericke-University Magdeburg, and Max-Planck-Institut fur Dynamik Komplexer Technischer Systeme Magdeburg, Germany
E. Tsotsas
Max-Planck-Institut fur Dynamik Komplexer Technischer Systeme Magdeburg, Germany

RÉSUMÉ

The significance of separate characterization of every single layer in a composite ceramic membrane has been investigated. It is shown that each layer of composite membrane must be characterized independently, and ignoring the effects of multilayer nature of the composite membrane can be misleading for the quantification of mass transfer. The dusty gas model for single gas permeation was used to study these effects. Single gas permeation experiments were conducted for three different gases (air, nitrogen, and helium) at various temperatures (25−500° C) and pressure conditions (1−3 bar). It is obvious from analysis that each layer of the composite membrane must be characterized separately and the transport parameters of each membrane layer must be taken into consideration while quantifying the mass transfer through composite membranes.