Gas permeation measurement under defined humidity via constant volume/variable pressure method

Pauls Jan Roman, Fritsch Detlev, Klassen Thomas, Klaus-Viktor Peinemann

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Many industrial gas separations in which membrane processes are feasible entail high water vapour contents, as in CO 2-separation from flue gas in carbon capture and storage (CCS), or in biogas/natural gas processing. Studying the effect of water vapour on gas permeability through polymeric membranes is essential for materials design and optimization of these membrane applications. In particular, for amine-based CO 2 selective facilitated transport membranes, water vapour is necessary for carrier-complex formation (Matsuyama et al., 1996; Deng and Hägg, 2010; Liu et al., 2008; Shishatskiy et al., 2010) [1-4]. But also conventional polymeric membrane materials can vary their permeation behaviour due to water-induced swelling (Potreck, 2009) [5]. Here we describe a simple approach to gas permeability measurement in the presence of water vapour, in the form of a modified constant volume/variable pressure method (pressure increase method). © 2011 Elsevier B.V.
Original languageEnglish (US)
Pages (from-to)343-348
Number of pages6
JournalJournal of Membrane Science
Volume389
DOIs
StatePublished - Feb 2012

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