Alkene oligomerization process

Details Alkene oligomerization process Alkene oligomerization process

C - Chemistry, Metallurgy

07

C

C07C 2/12 (2006.01) C07C 11/02 (2006.01) C07C 29/141 (2006.01) C07C 51/09 (2006.01) C07C 67/08 (2006.01)

Patent

CA 2405574

A process for oligomerising alkenes having from 3 to 6 carbon atoms which comprises contacting a feedstock comprising (a) one or sevelal alkenes having x carbon atoms, and, (b) optionally, one or several alkenes having y carbon atoms, x and y being different, with a catalyst containing a zeolite of the MFS structure type, under conditions to obtain selectively oligomeric product containing predominant amount of certain oligomers. The process is carried out a temperature comprised between 125 and 175~C when the feedstock contains only alkenes with 3 carbon atoms and between 140 and 240~C, preferably between 140 and 200~C when the feedstock comprises at least one alkene with 4 or more carbon atoms.

L'invention concerne un procédé d'oligomérisation d'alcènes possédant 3 à 6 atomes de carbone, qui consiste à mettre en contact une matière de base comprenant (a) au moins un alcène possédant x atomes de carbone et, (b) éventuellement, au moins un alcène possédant y atomes de carbone, x étant différent d'y, avec un catalyseur contenant une zéolithe du type de structure MFS, dans les conditions permettant d'obtenir un produit sélectivement oligomérique contenant des quantités prédominantes de certains oligomères. Le procédé est mis en oeuvre à une température comprise entre 125 et 175 ·C lorsque la matière de base ne contient que des alcènes présentant 3 atomes de carbone, et comprise entre 140 et 240 ·C, de préférence entre 140 et 200 ·C, lorsque la matière de base contient au moins un alcène possédant au moins 4 atomes de carbone.

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