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The Flow of Butane and Isobutene Vapors Near Saturation Through Porous Vycor Glass Membranes

SYSNO ASEP	0367224
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	The Flow of Butane and Isobutene Vapors Near Saturation Through Porous Vycor Glass Membranes
Author(s)	Loimer, T. (FR) Uchytil, Petr (UCHP-M)_{RID, SAI} Petričkovič, Roman (UCHP-M)_{RID, SAI} Setničková, Kateřina (UCHP-M)_{RID, ORCID, SAI}
Source Title	Journal of Membrane Science. - : Elsevier - ISSN 0376-7388 Roč. 383, 1-2 (2011), s. 104-115
Number of pages	12 s.
Language	eng - English
Country	NL - Netherlands
Keywords	transport processes ; porous media ; inorganic membranes
Subject RIV	CI - Industrial Chemistry, Chemical Engineering
R&D Projects	GA104/09/1165 GA ČR - Czech Science Foundation (CSF)
	GCP106/10/J038 GA ČR - Czech Science Foundation (CSF)
	ME 889 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z40720504 - UCHP-M (2005-2011)
UT WOS	000296483300012
DOI	10.1016/j.memsci.2011.08.035
Annotation	The pressures of the vapors upstream of the membrane lie between the saturation pressure and approximately half the saturation pressure. The process is described assuming an adiabatic flow of the fluid. As an important result, the adiabatic description yields a characteristic pore diameter. For upstream pressures close to the saturation pressure and pore diameters smaller than the characteristic value, complete condensation of the fluid and flow of the liquid phase through a part of the membrane is predicted. Under these circumstances, due to the action of capillary pressure, the mass flux is greatly increased with respect to the mass flux of a vapor that does not undergo phase changes. Isothermal descriptions do not yield a characteristic pore diameter. There is qualitative agreement between our description and experimental data with respect to the mass transport. Quantitatively, the agreement is poor to moderate.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2012

Number of the records: 1