Improved ZIF-8 membrane: Effect of activation procedure and determination of diffusivities of light hydrocarbons

Yichang Pan, Wei Liu, Yingjie Zhao, Chongqing Wang, Zhiping Lai

Research output: Contribution to journalArticlepeer-review

51 Scopus citations

Abstract

Zeolitic imidazolate framework ZIF-8 has shown great potential for effective separation of hydrocarbon mixtures based on its intrinsic ultramicroporous feature. In order to explore the permeation and diffusion properties of hydrocarbons through ZIF-8 membrane, high-quality ZIF-8 membranes with a separation factor of ~90 for propylene/propane are successfully prepared via optimizing the activation processes. Single-component permeation data for hydrocarbons (C1–C4) through the improved ZIF-8 membrane are measured and analyzed by Maxwell-Stefan (MS) model to get the transport diffusivities of these hydrocarbons. The diffusivity values of hydrocarbon compare well with those obtained by other experimental techniques. Binary mixture permeation also can be well predicted through single-component adsorption parameters.
Original languageEnglish (US)
Pages (from-to)88-96
Number of pages9
JournalJournal of Membrane Science
Volume493
DOIs
StatePublished - Jun 23 2015

ASJC Scopus subject areas

  • Biochemistry
  • Filtration and Separation
  • Materials Science(all)
  • Physical and Theoretical Chemistry

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