High flux freeze-dried cellulose acetate reverse osmosis membranes as microporous barriers in gas permeation and separation

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DOIResolve DOI: http://doi.org/10.1002/app.1970.070140517
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TypeArticle
Journal titleJournal of Applied Polymer Science
ISSN1097-4628
Volume14
Issue5
Pages13031321; # of pages: 19
AbstractThe permeations of helium, hydrogen, methane, ethylene, nitrogen, and argon, and helium–methane, nitrogen–ethylene, oxygen–nitrogen, and sulfur dioxide–nitrogen mixtures have been studied using freeze-dried porous cellulose acetate reverse osmosis membranes. The results illustrate the existence of mobile and immobile sorbed layers and the governing influence of surface flow in gas-phase reverse osmosis separations. Preshrunk freeze-dried porous cellulose acetate membranes seem to offer a practical means of utilizing the reverse osmosis process for recovering helium from natural gas and separating sulfur dioxide from flue gases.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedYes
NRC number11294
NPARC number21274943
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Record identifier610b7e3c-aaef-4849-96da-84136a123fc8
Record created2015-05-04
Record modified2016-05-09
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