Reaction Kinetics and Catalysis Letters

, Volume 41, Issue 5, pp 679–687 | Cite as

The kinetics of hydrocarbon conversion on ZSM-5 zeolites

  • M. A. Botavina
  • N. V. Nekrasov
  • S. L. Kiperman
Article
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Abstract

The complete oxidation of hydrocarbons with various structures (methane, n and wo-pentanes, cyclohexane, and benzene) on copper-modified ZSM-5 zeolite and the aromatization of propane on H-ZSM-5, are studied to analyze diffusion effects on the reaction kinetics. Comparison of the kinetic parameters of complete oxidation shows that the process rate and the rate law strongly depend on the reactant structure. Apparently, n-pentane oxidation is controlled by kinetics; the kinetics for other hydrocarbons depends on diffusion inside zeolite channels to different degrees. In the case of propane aromatization, its dehydrogenation and cracking, as well as the formation of aromatics from olefins, occurs on different active sites. Propane conversion is supposed to occur inside the zeolite channels, and the aromatization of olefins occurs on the outer surface of the zeolite crystal

Keywords

Zeolite Methane Oxidation Aromatization Complete Oxidation Propane Conversion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© MAIK “Nauka/Interperiodica” 2000

Authors and Affiliations

  • M. A. Botavina
    • 1
  • N. V. Nekrasov
    • 1
  • S. L. Kiperman
    • 1
  1. 1.Zelinskii Institute of Organic ChemistryRussian Academy of SciencesMoscowRussia

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