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US 4,902,847 AGranted
Method for producing olefin oligomers using a modified mordenite based catalyst
AssigneeInstitut Francais du Petrole
InventorsBernard Juguin, Francis Raatz, Christine Travers, Germain Martino
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Abstract
Preparation of oligomers of C.sub.2 to C.sub.8 olefins useful in gasoline, yet fuel and diesel fuel is disclosed. The oligomerization is catalyzed by a modified mordenite in the H or NH.sub.4 + to form which has been sequentially treated with steam and an acid.
Claims17
A method for producing oligomers, in which at least one mono-olefin having 2 to 8 carbon atoms is placed in contact with a mordenite which has been obtained by the following series of operations:
- (a) subjecting non-dealuminized mordenite substantially in the H or NH.sub.4.sup.+ form to at least one treatment with steam at a temperature of 450.degree. C. to 600.degree. C. at a partial steam pressure above 60%, and
- (b) treating the resulting product, at least once, with an acid,
- said acid being used at a concentration of 0.5 and 20N.
A process for the preparation of a mordenite catalyst, comprising:
- (a) subjecting non-dealuminized mordenite substantially in the H or NH.sub.4.sup.+ form to at least one treatment with steam at a temperature of 450.degree. C. to 600.degree. C. at a partial steam pressure above 60%, and
- (b) treating the resulting product, at least once, with an acid,
- said acid being used at a concentration of 0.5 and 20N.
Dependencies are inferred from the claim text.