Hydration of propene over acidic zeolites

Autor: M. H. W. Sonnemans
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