Effect of microstructure of MFI-type zeolite membranes on separation of xylene isomers

J. L. O'Brien-Abraham, M. Kanezashi, Jerry Lin

Research output: Chapter in Book/Report/Conference proceedingChapter

4 Scopus citations


Effective separation of xylene isomers is possible with pervaporation through MFI-silicalite membranes. The effect of microstructural differences in silicalite membranes on the separation of xylene isomers was investigated. MFI-type zeolite membranes with random and ordered orientations were synthesized using a seeded growth method with and without organic templates. It was found that template-free random oriented membranes were capable of pure component p/o xylene separation factors of about 20 and p-xylene flux of 0.3 kg m-2 hr-1 . The membranes with preferred orientation showed comparable flux of xylene isomers but decreased selectivities ranging from 2 to 3. These results indicate that microstructure strongly affects the ability of the membrane to perform xylene separation.

Original languageEnglish (US)
Title of host publicationFrom Zeolites to Porous MOF Materials - The 40th Anniversary of International Zeolite Conference
PublisherElsevier Inc.
Number of pages8
ISBN (Print)0444530681, 9780444530684
StatePublished - 2007

Publication series

NameStudies in Surface Science and Catalysis
ISSN (Print)0167-2991

ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry


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