Mixed matrix membranes containing MOF's for ethelyne/ethane separation. Part A: Membrane preparation and characterization

J. Ploegmakers, S. Japip, Dorothea C. Nijmeijer

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66 Citations (Scopus)

Abstract

Mixed matrix membranes (MMMs) containing three different metal organic frameworks (MOFs) (Cu3BTC2, FeBTC and MIL-53 (Al)) as filler in P84 were prepared and characterized in terms of ethylene/ethane separating ability. SEM, TGA and DSC suggest the absence of non-selective voids in the Cu3BTC2 and FeBTC MMMs. Gas permeation experiments confirmed this, and showed an increase in ethylene/ethane selectivity of 73% to a value of 7.1, while ethylene permeability remained constant at 17×10−18 mol m/(m2 s Pa) with addition of 20 wt% Cu3BTC2. Addition of 20 wt% FeBTC showed a reduced permeability, caused by the formation of a denser intermediate layer, and no significant change in selectivity. Addition of MIL-53 led to increased permeabilities and no change in selectivity, which is probably the result of the formation of non-selective voids or the absence of inherent selectivity of MIL-53
Original languageEnglish
Pages (from-to)445-453
JournalJournal of membrane science
Volume428
DOIs
Publication statusPublished - 2013

Keywords

  • METIS-292892
  • IR-86771

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