Diffusion in a mesoporous silica membrane: Validity of the Knudsen diffusion model

Diffusion in a mesoporous silica membrane: Validity of the Knudsen diffusion model

Experimental permeance data for several light gases in a mesoporous silica membrane are analyzed in detail and shown to conform closely to the Knudsen diffusion model. The results of this study do not support the conclusions drawn from recent molecular simulations concerning the inadequacy of the Kn...

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Veröffentlicht in:Chemical engineering science 2009-07, Vol.64 (13), p.3201-3203
Hauptverfasser: Ruthven, Douglas M., DeSisto, W.J., Higgins, S.
Format: Artikel
Sprache:eng
Schlagworte:
Adsorption
Applied sciences
Chemical engineering
Diffusion
Exact sciences and technology
Knudsen diffusion
Membranes
Mesoporous membranes
Transport processes
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Beschreibung
Zusammenfassung:Experimental permeance data for several light gases in a mesoporous silica membrane are analyzed in detail and shown to conform closely to the Knudsen diffusion model. The results of this study do not support the conclusions drawn from recent molecular simulations concerning the inadequacy of the Knudsen model.
ISSN:0009-2509
1873-4405
DOI:10.1016/j.ces.2009.03.049