Hydration of propene over acidic zeolites
Autor: | M. H. W. Sonnemans |
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Rok vydání: | 1993 |
Předmět: | |
Zdroj: | Applied Catalysis A: General. 94:215-229 |
ISSN: | 0926-860X |
DOI: | 10.1016/0926-860x(93)85009-e |
Popis: | A study of the hydration of propene over acidic zeolites shows that the catalytic activities of H-mordenite and stabilised H- (VUS-)Y are determined by their effective Bronsted acidity (i.e. the concentration of acid sites multiplied by their acid strength). For H-ZSM-5 it has been established that the rate of propene hydration is: (i) significantly influenced by competitive adsorption of propene and water, and (ii) limited by intracrystalline diffusion. Water inhibits the rate of hydration, this effect being more pronounced for H-ZSM-5 than for the other two zeolites. During propene hydration the interior of the zeolite becomes rapidly inaccessible due to the formation of carbonaceous compounds resulting from propene oligomerisation. |
Databáze: | OpenAIRE |
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