Evidence for different reaction mechanisms as the cause of the enhanced hydrocarbon cracking activity of steamed y zeolites

B. A. Williams, W. Ji, J. T. Miller, R. Q. Snurr, H. H. Kung

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Abstract

Experimental evidence is presented to support two key aspects of a conceptual model for explaining enhanced hydrocarbon cracking activity of steamed vs. unsteamed Y zeolites. First, it is shown how the cracking mechanism shifts with changing concentrations of adsorbed olefins. Second, evidence is presented to support the suggestion that diffusion of olefins inside the zeolite may influence the observed reaction rate at low temperatures.

Original languageEnglish
Pages (from-to)2453-2458
Number of pages6
JournalStudies in Surface Science and Catalysis
Volume130 C
Publication statusPublished - Jan 1 2000

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ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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