Reaction Kinetics, Mechanisms and Catalysis
Volume/Issue:
Volume 101: Issue 1
Hydroconversion of n-decane on Pt/HZSM-5 bifunctional catalysts: effect of the Si/Al ratio of the zeolite on selectivities
Authors: Ahcène Soualah 1 , 2 , Jean-Louis Lemberton 3 , Ludovic Pinard 3 , Mohamed Chater 1 , Patrick Magnoux 3 and Kjell Moljord 4
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  • 1 Laboratoire d'Etudes Physico-chimiques des Matériaux et Application à l'Environnement (LEPCMAE), Faculté de Chimie, Université des Sciences et de la Technologie Houari Boumediène (USTHB), El Alia, B.P. 32, 16111 Alger, Algeria
  • 2 Département de Génie des Procédés, Université A. Mira, Route de Tergua ou Zemmour, 06000 Bejaïa, Algeria
  • 3 Laboratoire de Catalyse en Chimie Organique, Faculté des Sciences, Université de Poitiers, UMR CNRS 6503, 40 Avenue du Recteur Pineau, 86022 Poitiers Cedex, France
  • 4 Statoil Research Center, 7005 Trondheim, Norway
DOI:
https://doi.org/10.1007/s11144-010-0193-z
Page Count:
209–219
Publication Date:
01 Oct 2010
Online Publication Date:
14 Jun 2010
Article Category:
Research Article
Restricted access

Abstract

Hydroconversion of n-decane was investigated on a series of platinum loaded ZSM-5 samples with varied Si/Al ratio. It was observed that the catalytic activity of ZSM-5 zeolite catalysts decreased with increasing Si/Al ratios in samples. The isomer selectivity in the platinum catalysts increased with the Si/Al ratio, which can be explained by a better balance between acidic and hydrogenating sites (high nPt/nH+ ratio = 0.3). On this catalyst, the olefinic intermediates formed on Pt come into contact with few acidic sites before encountering a Pt particle again on which they hydrogenate to be transformed into branched isomers. Among the various C10 isomers, 2-MeC9 was preferentially formed. On all catalysts, the content of linear products in the carbon number fractions is higher than branched products. This result is interpreted by type C hydrocracking of methylnonanes.

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Cover Reaction Kinetics, Mechanisms and Catalysis
Reaction Kinetics, Mechanisms and Catalysis
Print ISSN:
1878-5190
Online ISSN:
1878-5204
Keywords:
Hydroconversion; n-Decane; Platinum; HZSM-5 zeolite

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