Acidity modification of MCM-22 for selective p-xylene formation in toluene disproportionation

V. Mavrodinova, M. Popova, R. M. Mihályi, Borbély G. Páł, Ch Minchev

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Improved p-xylene selectivity upon toluene disproportionation has been achieved with MCM-22 zeolite by controllable modification of its acidity through proton replacement with InO+ and Cs+ counter ions. The former cations were introduced by Reductive Solid-State Ion Exchange (RSSIE) starting from In2O3. The favorable effect of such modification has been compared with the merely proton replacement with cesium cations accomplished by Solid-State Ion Exchange (SSIE). It was found that the Lewis-connected InO+ acid sites contribute to the enhanced release of the p-isomer.

Original languageEnglish
Pages (from-to)1843-1850
Number of pages8
JournalStudies in Surface Science and Catalysis
Volume158 B
Publication statusPublished - 2005

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Toluene
Multicarrier modulation
xylene
Xylene
Acidity
acidity
toluene
Cations
Protons
Ion exchange
Positive ions
Zeolites
Cesium
Radiation counters
Isomers
solid state
cations
ions
protons
cesium

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Catalysis

Cite this

Acidity modification of MCM-22 for selective p-xylene formation in toluene disproportionation. / Mavrodinova, V.; Popova, M.; Mihályi, R. M.; Páł, Borbély G.; Minchev, Ch.

In: Studies in Surface Science and Catalysis, Vol. 158 B, 2005, p. 1843-1850.

Research output: Contribution to journalArticle

Mavrodinova, V. ; Popova, M. ; Mihályi, R. M. ; Páł, Borbély G. ; Minchev, Ch. / Acidity modification of MCM-22 for selective p-xylene formation in toluene disproportionation. In: Studies in Surface Science and Catalysis. 2005 ; Vol. 158 B. pp. 1843-1850.
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