Hydration of propene over acidic zeolites

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 Brønsted acidity (i.e. the concentration of acid sites multiplied by their acid strength). For H-ZSM-5 it has been established that...

Full description

Saved in:
Bibliographic Details
Published in:Applied catalysis. A, General General, 1993-02, Vol.94 (2), p.215-229
Main Author: Sonnemans, M.H.W.
Format: Article
Language:English
Subjects:
acidity
adsorption effects
hydration
isopropyl alcohol
propene
zeolites
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 Brønsted 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.
ISSN:0926-860X
1873-3875
DOI:10.1016/0926-860X(93)85009-E