The contribution of the methanol-to-aromatics reaction to benzene methylation over ZSM-5 catalysts

The methanol to aromatics conversion is shown to contribute significantly to the benzene methylation with methanol at 400 °C over acidic ZSM-5 catalysts but such contribution over all catalysts is negligible at 250 °C. Benzene-only conversion shows only negligible contribution at both temperatures o...

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Bibliographic Details
Published in:Catalysis communications 2003-02, Vol.4 (2), p.71-76
Main Authors: Adebajo, Moses O, Long, Mervyn A
Format: Article
Language:English
Subjects:
Benzene methylation
Benzene-only conversion
Methane
Methane conversion
Methanol
Methanol-only conversion
ZSM-5
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Summary:The methanol to aromatics conversion is shown to contribute significantly to the benzene methylation with methanol at 400 °C over acidic ZSM-5 catalysts but such contribution over all catalysts is negligible at 250 °C. Benzene-only conversion shows only negligible contribution at both temperatures over the catalysts studied. However, it appears that the methanol-only conversion can be minimised, to enhance the benzene methylation with methanol (and indirectly the oxidative benzene methylation with methane), by using NaZSM-5 with highly reduced Brönsted acidity.
ISSN:1566-7367
1873-3905
DOI:10.1016/S1566-7367(02)00259-5