Development of facilitated transport membranes for the separation of olefins from gas streams

Jörg Müller, Klaus Viktor Peinemann, Jörg Müller

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

The current work is concerned with the development of highly selective facilitated transport membranes for olefin/paraffin separation. With sorption measurements AgCIO4 was chosen as the best carrier salt. AgCIO4 was embedded into two different polyether-block-amide copolymers-Pebax®4011 and Pebax®2533-with up to 41 wt.% of Ag+. The solubility of the carrier in polymer the influence of humidity on the separation characteristics of the membranes and aging of membranes were studied. Pebax®2533/AgCIO4 membranes with 36 wt.% of Ag+ made from intentionally aged coating solutions showed the best results. For a humidified equimolar ethene/ethane mixture ethene fluxes in the range of 0.1 to 0.2 m3/m2 h bar and gas mixture selectivities of 110 to 190 were measured.

Original languageEnglish (US)
Pages (from-to)339-345
Number of pages7
JournalDesalination
Volume145
Issue number1-3
DOIs
StatePublished - Sep 10 2002
Externally publishedYes

Keywords

  • Facilitated transport
  • Gas separation
  • Olefin/parafin
  • Pebax
  • Polyether-block-amide copolymer (PEBA)
  • Solid-solution

ASJC Scopus subject areas

  • Filtration and Separation

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