Gas permeation measurement under defined humidity via constant volume/variable pressure method
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
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AbstractMany 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) . 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.
CitationJan Roman P, Detlev F, Thomas K, Klaus-Viktor P (2012) Gas permeation measurement under defined humidity via constant volume/variable pressure method. Journal of Membrane Science 389: 343–348. Available: http://dx.doi.org/10.1016/j.memsci.2011.10.046.
JournalJournal of Membrane Science