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

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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
CountryKorea, 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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van Well, W. J. M., Wolthuizen, J. P., Smit, B., Hooff, van, J. H. C., & Santen, van, R. A. (1997). Commensurate freezing of hydrocarbons in silicalite. In H. Chon, S-K. Ihm, & Y. S. Uh (Eds.), Progress in Zeolite and Microporous Materials; Proceedings of the 11th International Zeolite conference, Seoul, Korea, 12-17-August 1996 (pp. 2347-2354). (Studies in Surface Science and Catalysis; Vol. 105). Amsterdam: Elsevier. https://doi.org/10.1016/S0167-2991(97)80709-4