Propane dehydrogenation over a Cr2O3/Al2O3 catalyst: Transient kinetic modeling of propene and coke formation

Jorge Gascon Sabate, C. Téllez, J. Herguido, M. Menéndez*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

117 Scopus citations

Abstract

The kinetics of propane dehydrogenation to produce propene over a Cr2O3/Al2O3 catalyst has been investigated over the temperature range of 525-575°C at atmospheric pressure. The reaction rate of coke formation and its influence over catalyst deactivation has been studied. A Langmuir-Hinshelwood mechanism provides the best fit for the reaction, while a monolayer-multilayer mechanism is proposed to model the coke growth. Furthermore, this model was able to predict coke formation under conditions far from those employed in the experiments used to obtain the kinetics.

Original languageEnglish (US)
Pages (from-to)105-116
Number of pages12
JournalApplied Catalysis A: General
Volume248
Issue number1-2
DOIs
StatePublished - Aug 8 2003

Keywords

  • Catalyst deactivation
  • CrO/AlO catalysts
  • Propane dehydrogenation
  • Reaction kinetics
  • Reaction mechanism

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

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