Conversion of 2-methylfuran to 2-methylthiophene over alkaline X- and Y-zeolites
- 1 January 1990
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions
- Vol. 86 (15) , 2795-2800
- https://doi.org/10.1039/ft9908602795
Abstract
The activity of MI-Y and -X zeolites (M = Li, Na, K, Rb, Cs) in catalysing the title reaction has been analysed together with some relevant physico-chemical characteristics of the catalyst. Some useful correlations, extending to both the series of alkali-metal cation X and Y faujasites, have been found between catalyst performance, some structural properties and excess of negative charge on crystal-lattice oxygen of the solid. The selectivity of the process appears to depend on the relative number of H2S molecules adsorbing through ionic- or radical-type mechanisms onto the catalyst surface and on the relative stability of the intermediates so formed between adsorbed H2S and the zeolite surface site.Keywords
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