Enhancing Liquid-Phase Olefin-Paraffin Separations Using Novel Silver-Based Ionic Liquids

Yu Wang, Weiye Hao, Johan Jacquemin, Peter Goodrich, Mert Atilhan, Majeda Khraisheh*, David Rooney, Jillian Thompson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)
383 Downloads (Pure)

Abstract

This paper describes the extraction of C5-C8 linear α-olefins from olefin/paraffin mixtures of the same carbon number using silver(I)/N,N-dimethylbenzamide bis(trifluoromethylsulfonyl)imide ([Ag(DMBA)2][Tf2N]) or silver(I)/propylamine bis(trifluoromethylsulfonyl)imide ([Ag(PrNH2)2][Tf2N]) as the extracting agent. The separation performance of the system increased with increasing chain length. [Ag(DMBA)2][Tf2N] appeared to outperform [Ag(PrNH2)2][Tf2N] in terms of both selectivity and distribution coefficient. The [Ag(DMBA)2][Tf2N] system was successfully modeled using the universal quasi-chemical activity coefficient (UNIQUAC) model. These results support the potential future development of amine/amide-based ligands for producing soluble silver complexes useful for the separation of olefins from paraffins.

Original languageEnglish
Pages (from-to)28-36
Number of pages9
JournalJournal of Chemical and Engineering Data
Volume60
Issue number1
Early online date15 Nov 2014
DOIs
Publication statusPublished - 2015

Keywords

  • FACILITATED TRANSPORT MEMBRANES
  • BASIS-SETS
  • N-HEXANE
  • EQUILIBRIA
  • EXTRACTION
  • WATER
  • COMPLEXATION
  • MIXTURES
  • SYSTEMS
  • 1-HEXENE

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