Effective separation of propylene/propane binary mixtures by ZIF-8 membranes

Yichang Pan, Li Tao, Gabriella Lestari, Zhiping Lai

Research output: Contribution to journalArticlepeer-review

377 Scopus citations


The separation of propylene/propane mixtures is one of the most important but challenging processes in the petrochemical industry. A novel zeolitic imidazole framework (ZIF-8) membrane prepared by a facile hydrothermal seeded growth method showed excellent separation performances for a wide range of propylene/propane mixtures. The membrane showed a permeability of propylene up to 200. barrers and a propylene to propane separation factor up to 50 at optimal separation conditions, well surpassing the "upper-bound trade-off" lines of existing polymer and carbon membranes. The experimental data also showed that the membranes had excellent reproducibility, long-term stability and thermal stability. © 2011 Elsevier B.V.
Original languageEnglish (US)
Pages (from-to)93-98
Number of pages6
JournalJournal of Membrane Science
StatePublished - Feb 2012

ASJC Scopus subject areas

  • Biochemistry
  • Filtration and Separation
  • General Materials Science
  • Physical and Theoretical Chemistry


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