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

2002; Elsevier BV; Volume: 4; Issue: 2 Linguagem: Inglês

10.1016/s1566-7367(02)00259-5

1873-3905

Moses O. Adebajo, Mervyn A. Long,

Catalysis and Oxidation Reactions

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.