Associative adsorption kinetics

A novel kinetic model for the dehydrogenation of methylcyclohexane

Muhammad Sarfraz Akram, Dureem Munir, Muhammad Rashid Usman

Research output: Contribution to journalArticle

Abstract

Methylcyclohexane (MCH) dehydrogenation is an important reforming reaction and is considered as a model naphthene dehydrogenation reaction. An increase in the rate of this reaction with the addition of hydrogen at low pressures has been observed by various researchers in the field. This enhancement in rate is described, in the present study, using the concept of associative adsorption of MCH with hydrogen in Langmuir-Hinshelwood-Hougen-Watson single-site and dual-site surface reaction mechanisms. The various rate equations developed on these bases are tested against the experimental data of Usman over Pt/Al2O3 and the best-fit rate model is presented. An activation energy of 52.0 kJ mol-1 is obtained for the best-fit rate model.

Original languageEnglish
Pages (from-to)404-417
Number of pages14
JournalProgress in Reaction Kinetics and Mechanism
Volume39
Issue number4
DOIs
Publication statusPublished - 2014

Fingerprint

Dehydrogenation
dehydrogenation
Adsorption
Kinetics
adsorption
Hydrogen
kinetics
Surface reactions
Reforming reactions
Activation energy
hydrogen
surface reactions
low pressure
methylcyclohexane
activation energy
augmentation

Keywords

  • Associative adsorption
  • Dehydrogenation
  • Langmuir-Hinshelwood-Hougen-Watson kinetics
  • Methylcyclohexane
  • Reforming

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Associative adsorption kinetics : A novel kinetic model for the dehydrogenation of methylcyclohexane. / Akram, Muhammad Sarfraz; Munir, Dureem; Usman, Muhammad Rashid.

In: Progress in Reaction Kinetics and Mechanism, Vol. 39, No. 4, 2014, p. 404-417.

Research output: Contribution to journalArticle

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