Isomerization of 3 -methyl(3-13C)pentane over platinum supported sulphated zirconias : reaction mechanisms

This paper studies the isomerization mechanisms of 3-methyl(3-13C)pentane over Pt supported sulphated zirconias (SZs). Pt hydrogenates the reaction intermediates that desorbs, hinders successive isomerizations from occurring and reduces the isomerization steps to two (three with Pt-free SZs). The is...

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Bibliographic Details
Published inCatalysis letters Vol. 114; no. 1-2; pp. 41 - 48
Main Authors DEMIRCI, U. B, GARIN, F
Format Journal Article
LanguageEnglish
Published Dordrecht Springer 01.03.2007
Springer Nature B.V
Springer Verlag
Subjects
Catalysis
Chemical Sciences
Chemistry
Exact sciences and technology
General and physical chemistry
Isomerization
Migration
Platinum
Reaction intermediates
Reaction mechanisms
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Gallium
Hydrocarbon
Isotope labelling
Support
Isomerization
Transition element compounds
Carbon Isotopes
13C-labelled alkane
aluminium or gallium doped sulphated zirconia
Transition metal
Aluminium
Pentane
Zirconia
Heterogeneous catalysis
Platinum
Alkane
Reaction mechanism
methylpentane
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Summary:This paper studies the isomerization mechanisms of 3-methyl(3-13C)pentane over Pt supported sulphated zirconias (SZs). Pt hydrogenates the reaction intermediates that desorbs, hinders successive isomerizations from occurring and reduces the isomerization steps to two (three with Pt-free SZs). The isomerization is a monomolecular process to which Pt does not participate. Lastly, it is suggested that the ratio between the proportions of methyl migration and ethyl migration could be appreciated as a catalyst intrinsic characteristic.
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-007-9042-8