Olefin / Paraffin separation using Task-Specific Materials based on Ionic Liquids: Advances in Gas Processing

Johan Jacquemin, Yun Zheng, Yu Wang, Jingjing Zhou, Jillian Thompson, Mert Atilhan, David Rooney, Majeda Khraisheh

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

In this work, 1-hexene was extracted from its mixtures with n-hexane in varying ratios using a task specific ionic liquid. Herein, the ionic liquid (IL) 1-butyl-3-methylimidazolium nitrate, [BMIM][NO3], was used and examined with and without the addition of a metal salt. The impact of water on both selectivity and distribution coefficient was also tested. Four potential metal salts were investigated, the results of which demonstrate that the dissolution of transition-metal salts in the IL improves the separation of 1-hexene from n-hexane through metal-olefin complexation. Additionally, the presence of water in IL solutions containing metal salt enhances this selectivity. Finally, UNIFAC was used to correlate the experimental LLE data with good accuracy.
Original languageEnglish
Title of host publicationProceedings of the 4th International Gas Processing Symposium: A volume in Advances in Gas Processing
EditorsMohammed J. Al-MarriFadwa T. Eljack
Place of PublicationOxford
PublisherChurchill Livingstone Elsevier
Pages243-250
Number of pages8
DOIs
Publication statusPublished - 2015

Keywords

  • olefin/paraffin separation
  • ionic liquid
  • extraction

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