Activity and selectivity of zeolite MCM-22 catalysts in the disproportionation of toluene |
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| Authors: | Magdolna R Mihályi Ilian Kolev Vesselina Mavrodinova Christo Minchev Márton Kollár and József Valyon |
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| Institution: | (1) Institute of Surface Chemistry and Catalysis, Chemical Research Center, Hungarian Academy of Sciences, Pusztaszeri út 59-67, Budapest, Hungary, 1025;(2) Institute of Organic Chemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria, 1113 |
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| Abstract: | Zeolite precursor MCM-22 samples were prepared by hydrothermal synthesis. The H-zeolites, obtained from the precursors, were
characterized by scanning electron microscopy (SEM), Fourier-transform infrared (FT-IR) spectroscopy, and by their activity
in the title reaction. Despite of the lower Br?nsted acid site concentration of the zeolite having smaller crystallites, showed
higher activity, while the zeolite, having larger crystals were more selective for p-xylene formation. |
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| Keywords: | Zeolite MCM-22 crystallite size H-form toluene disproportionation |
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