Alkylation of toluene with methanol over zeolite-disc catalyst synthesized via solid-state reactions

Imre Kiricsi, Shinichi Shimizu, Yoshimichi Kiyozumi, Makoto Toba, Shu Ichi Niwa, Fujio Mizukami

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8 Citations (Scopus)

Abstract

ZSM-5 zeolite disc was synthesized by a new method in which reactions occurred in the solid state. The hydrogen form of the zeolite was prepared by ion-exchange of the sodium ions of the disc-shaped pellet for hydrogen ions in hydrochloric acid solution. The catalyst thus prepared was characterized by SEM, thermogravimetry, nitrogen adsorption and ammonia TPD. High paraxylene selectivity was observed for the new, disc-shaped ZSM-5 zeolite catalyst in the alkylation of toluene with methanol. This feature was attributed to the inherent character of the catalyst, since its structure consisted of intergrown individual HZSM-5 crystals forming secondary mesopores. This structural arrangement led to a substantial decrease in the outer surface between the adjacent crystals, the probability of secondary reactions therefore being suppressed.

Original languageEnglish
Pages (from-to)335-345
Number of pages11
JournalApplied Catalysis A: General
Volume156
Issue number2
DOIs
Publication statusPublished - Aug 28 1997

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Keywords

  • Alkylation
  • Shape selectivity
  • Zeolite

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

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