Elsevier

Journal of Catalysis

Volume 187, Issue 1, 1 October 1999, Pages 167-176
Journal of Catalysis

Regular Article
Hydroisomerization of Pentane, Hexane, and Heptane for Improving the Octane Number of Gasoline

https://doi.org/10.1006/jcat.1999.2601Get rights and content

Abstract

The hydroisomerization of n-heptane to dibranched and tribranched products for producing high octane gasoline has been studied using unidirectional 12 Membered Ring (MR) zeolites with different pore diameters, and zeolites with other pore topologies including one with connected 12×10 MR pores and two tridirectional 12 MR zeolites. Besides the pore topology, the crystallite size of the zeolite was seen to be of paramount importance for improving activity and selectivity. In a second part of the work, a Light Straight Run naphtha including n-pentane and n-hexane and another feed containing n-pentane, n-hexane, and n-heptane have been successfully isomerized using a nanocrystalline Beta (BEA) zeolite. This can be a favourable alternative to the commercial zeolite catalyst based on mordenite (MOR), especially when n-heptane is present in the feed.

References (21)

  • M.A. Camblor et al.

    Stud. Surf. Sci. Catal.

    (1997)
  • J.A. Martens et al.

    Stud. Surf. Sci. Catal.

    (1989)
  • J.A. Martens et al.

    Appl. Catal.

    (1986)
  • G.F. Asselin et al.

    Symposium on Advances in Gasoline Technology

    (Aug. 27, 1972)
  • H.W. Kouwenhoven et al.

    Chem. Eng. Proc.

    (1971)
  • K.H. Steinberg et al.

    Acta Phys. Chim.

    (1985)
  • J.P. Spivey et al.

    Ind. Eng. Chem. Prod. Res. Dev.

    (1972)
  • Corma, A, Lázaro, J. J, and, Frontela, M. J, U.S. Patent 5,057,471,...
  • A. Corma et al.

    ACS Petrol. Div.

    (1991)
  • V.A. Van Nordtrand et al.
There are more references available in the full text version of this article.

Cited by (285)

View all citing articles on Scopus
1

To whom correspondence should be addressed. Fax: 34 96 3877809. E-mail: [email protected].

View full text