Influence of the Tortuosity and the Acidity of H-ZSM-5 on the Selectivities in Ethylation of Toluene

F. Lonyi, J. Engelhardt, D. Kallo

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The primary product of title reaction is p-ethyltoluene, which isomerizes to m- and very slowly to o-ethyltoluene. The yields of ethyltoluenes are decreased by hydrodeethylation. Disproportionate accompanies the above transformations. The change of yields and selectivities of p-ethyltoluene with the spacetime, the reaction temperature (350-500*C), catalyst pretreatment temperature (400-700*C), time on flow and with the amount of adsorbed pyridine or 2,6-lutidine are discussed on the basis of kinetical considerations. Inclusions of oxides of phosphorus and/or magnesium suppress the side reactions by decreasing the concentration of the Bronsted acid sites.

Original languageEnglish
Pages (from-to)1357-1366
Number of pages10
JournalStudies in Surface Science and Catalysis
Volume49
Issue numberC
DOIs
Publication statusPublished - Jan 1 1989

ASJC Scopus subject areas

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

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