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Commensurate freezing of hydrocarbons in silicalite

  • W.J.M. van Well
  • , J.P. Wolthuizen
  • , B. Smit
  • , J.H.C. Hooff, van
  • , R.A. Santen, van

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

    48 Downloads (Pure)

    Abstract

    Normal hexane and normal heptane exhibit a two step desorption profile from silicalite while shorter and longer normal alkanes desorb in a single step. The two step desorption profiles are explained by, and give evidence for, commensurate freezing of the hydrocarbon molecules in the zig-zag channels of silicalite. The freezing results in an additional loss of entropy upon adsorption in silicalite. Also linear alkenes with appropriate chainlength display a two step, but less pronounced, desorption profile. The less pronounced desorption profiles are the result of the lower energetic interaction of the alkenes with the silicalite lattice.
    Original languageEnglish
    Title of host publicationProgress in Zeolite and Microporous Materials; Proceedings of the 11th International Zeolite conference, Seoul, Korea, 12-17-August 1996
    EditorsH. Chon, S.-K. Ihm, Y.S. Uh
    Place of PublicationAmsterdam
    PublisherElsevier
    Pages2347-2354
    ISBN (Print)0-444-8344-1
    DOIs
    Publication statusPublished - 1997
    Event11th International Zeolite conference - Seoul, Korea, Democratic People's Republic of
    Duration: 12 Aug 199617 Aug 1996
    Conference number: 11

    Publication series

    NameStudies in Surface Science and Catalysis
    Volume105
    ISSN (Print)0167-2991

    Conference

    Conference11th International Zeolite conference
    Abbreviated titleIZC
    Country/TerritoryKorea, Democratic People's Republic of
    CitySeoul
    Period12/08/9617/08/96
    Other11th International Zeolite conference, Seoul, Korea, 12-17-August 1996

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