Shape-selective reactions with zeolite catalysts: V. Alkylation or disproportionation of ethylbenzene to produce ϱ-diethylbenzene

Alkylation of ethylbenzene (EB) with ethylene produces diethylbenzene (DEB) over ZSM-5 zeolite catalysts. Disproportionation of EB over these catalysts gives benzene and DEB. Less ortho-DEB forms than expected for equilibrium. Large-crystal ZSM-5 gives higher concentrations of para-DEB (PDEB) than s...

Full description

Saved in:
Bibliographic Details
Published inJournal of catalysis Vol. 95; no. 2; pp. 512 - 519
Main Author Kaeding, Warren W.
Format Journal Article
LanguageEnglish
Published Elsevier Inc 1985
Online AccessGet full text

Cover

More Information
Summary:Alkylation of ethylbenzene (EB) with ethylene produces diethylbenzene (DEB) over ZSM-5 zeolite catalysts. Disproportionation of EB over these catalysts gives benzene and DEB. Less ortho-DEB forms than expected for equilibrium. Large-crystal ZSM-5 gives higher concentrations of para-DEB (PDEB) than small-crystal ZSM-5. Alkylations and disproportionation over ZSM-5 modified with magnesium and phosphorus yield 98–99+% PDEB. These observations establish the elements necessary for development of a commercial PDEB process.
ISSN:0021-9517
1090-2694
DOI:10.1016/0021-9517(85)90129-0