Polyimide asymmetric membranes for hydrogen separation: Influence of formation conditions on gas transport properties

Sergey Shishatskiy*, Carmen Nistor, Marcel Popa, Suzana Nunes, Klaus-Victor Georg Peinemann

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

Abstract

The asymmetric flat sheet membrane was developed for separation of hydrogen from its mixtures with other gases. The composition of the casting solution and conditions of membrane preparation were optimized for the pilot scale membrane production. The resulting membrane have a high hydrogen flux (1 m 3(STP)/m2h*bar) and selectivity of H 2/CH4 at least 100, the value close to intrinsic selectivity of Matrimid 5218, material used for the asymmetric structure formation. The membrane is stable against mixtures of liquid hydrocarbons and can withstand heating up to 200 °C. The non-woven fabric used as a support for the asymmetric membrane gives to the membrane excellent mechanical properties and allows to use the membrane in GKSS gas separation modules.

Original languageEnglish (US)
Pages (from-to)390-397
Number of pages8
JournalAdvanced Engineering Materials
Volume8
Issue number5
DOIs
StatePublished - Jan 1 2006

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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