Experimental investigation on separations of condensable from non-condensable vapors using mesoporous membranes

Tzevelekos, KP; Romanos, GE; Kikkinides, ES; Kanellopoulos, NK; Kaselouri, V

dc.contributor.author	Tzevelekos, KP	en
dc.contributor.author	Romanos, GE	en
dc.contributor.author	Kikkinides, ES	en
dc.contributor.author	Kanellopoulos, NK	en
dc.contributor.author	Kaselouri, V	en
dc.date.accessioned	2014-03-01T01:14:39Z
dc.date.available	2014-03-01T01:14:39Z
dc.date.issued	1999	en
dc.identifier.issn	13871811	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13169
dc.subject	Condensable vapor permeability	en
dc.subject	Gas relative permeability	en
dc.subject	Mesoporous membranes	en
dc.subject	Selectivity	en
dc.title	Experimental investigation on separations of condensable from non-condensable vapors using mesoporous membranes	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S1387-1811(99)00066-9	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S1387-1811(99)00066-9	en
heal.publicationDate	1999	en
heal.abstract	He/H2O and He/n-C5H12 permeabilities as well as single-component permeabilities were measured on two mesoporous alumina membranes, in order to determine the optimum conditions for separating condensable from non-condensable vapors. The membranes were produced by compaction of non-porous alumina particles and exhibited similar pore structures but different porosities. The results show that, if the relative pressure of the condensable vapor in the condensable/non-condensable mixture is properly selected, very high selectivity and permeability values can be achieved simultaneously. The optimum relative pressure of the condensable vapor corresponds, in all cases studied, to the maximum condensable vapor permeability and to a relative gas permeability of zero. The pressure gradient of the condensable vapor across the membrane should be kept small, to avoid the formation of low permeability regions at either end of the membrane. © 1999 Elsevier Science B.V.	en
heal.journalName	Microporous and Mesoporous Materials	en
dc.identifier.doi	10.1016/S1387-1811(99)00066-9	en
dc.identifier.volume	31	en
dc.identifier.issue	1-2	en
dc.identifier.spage	151	en
dc.identifier.epage	162	en