Impact of Ionic Liquids on Silver Thermoplastic Composite Membrane Polyurethane for Propane/Propylene Separation

Yu Wang, Tee Yong Goh, Peter Goodrich, Mert Atilhan, Majeda Khraisheh, David Rooney, Jillian Thompson, Johan Jacquemin

Research output: Contribution to journalArticle

3 Citations (Scopus)
168 Downloads (Pure)

Abstract

This work describes newly synthesized composite polymeric membranes and their utilization in propane/propylene separation in a gas mixture. The nonporous composite polymers were successfully synthesized by using thermoplastic polyurethane (TPU) and several silver salts/silver salts with ionic liquids (ILs). Our studies showed that silver bis(trifluoromethanesulfonyl)imide (Ag[Tf2N]) containing membranes outperformed other silver salt containing membranes in terms of selectivity. In addition, to this finding, ILs, as additives for the membranes, enhanced the selectivity by facilitating improved coordination of the olefin with the silver ions in the dense composite polymers.
Original languageEnglish
Pages (from-to)404-415
Number of pages12
JournalArabian Journal of Chemistry
Volume13
Issue number1
Early online date17 May 2017
DOIs
Publication statusPublished - Jan 2020

Keywords

  • Membrane separation
  • Composite polymer
  • Ionic liquids
  • Propane/propylene separation

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