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  Transport of butane in a porous Vycor glass membrane in the region of condensation pressure

Uchytil, P., Petrickovic, R., & Seidel-Morgenstern, A. (2007). Transport of butane in a porous Vycor glass membrane in the region of condensation pressure. Journal of Membrane Science, 293(1-2), 15-21. doi:10.1016/j.memsci.2007.01.020.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-9810-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-B6B0-8
Genre: Journal Article

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 Creators:
Uchytil, P.1, Author
Petrickovic, R.1, Author
Seidel-Morgenstern, A.2, 3, Author              
Affiliations:
1Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic, Prague, Czech Republic, ou_persistent22              
2Physical and Chemical Foundations of Process Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society, ou_1738150              
3Otto-von-Guericke-Universität Magdeburg, External Organizations, ou_1738156              

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Free keywords: Mass transport; Porous Vycor glass; Dynamic permeation method; Gas permeability; Capillary condensation
 Abstract: The transport and the separation efficiency in porous membranes can be strongly influenced by the condensation of permeating gases. An accurate experimental monitoring of permeating vapors and condensates in small pores of membranes is very desirable. The dynamic permeation method is one of the methods which can be used to perform a corresponding study. The following experimental arrangement was applied: a constant higher pressure P1 was set on an open side of the membrane; on the opposite closed side the change of a lower pressure P2 was measured. The dynamic permeation set-up was used at first in transport measurements of a noncondensable gas through a Vycor glass membrane (mean pore radius around 2 nm). The obtained data were compared with the results of alternatively performed steady state permeation measurements. Subsequently, the permeability was studied for the condensable gas butane through the Vycor glass membrane, particularly for elevator pressure conditions near the saturated vapor pressure. Also for this purpose the dynamic permeation experiment was found to be very convenient. It enables to measure the mass transport for very small pressure gradients across the membrane. The permeation results obtained correspond well with the liquid butane permeability of Vycor membrane quantified previously in independent pervaporation experiments. This agreement confirms the presence of liquid butane in small pores of Vycor glass during the transient gas transport at relatively high pressures. Copyright © 2007 Elsevier B.V. All rights reserved. [accessed 2013 November 26th]

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Language(s): eng - English
 Dates: 2007
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: eDoc: 312987
DOI: 10.1016/j.memsci.2007.01.020
 Degree: -

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Title: Journal of Membrane Science
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 293 (1-2) Sequence Number: - Start / End Page: 15 - 21 Identifier: ISSN: 0376-7388
CoNE: https://pure.mpg.de/cone/journals/resource/954925525807