Process for oligomerizing olefins using a super-dealuminated Y-zeolite
AssigneeTexaco Chemical Company
InventorsJohn R. Sanderson, Pei S. E. Dai, John F. Knifton
Life of this patent
Estimating the term…
Abstract
An improved process is disclosed for preparing synthetic lubricant base stocks. Synthetic lubricant base stocks are prepared in good yield by oligomerizing linear olefins using a catalyst comprising a super-dealuminated Y-zeolite.
Claims17
A process for the preparation of oligomers, comprising contacting a linear olefin containing from 12 to 24 carbon atoms with a catalyst comprising a Y-zeolite having a silica to alumina ratio greater than about 5:1.
A process for the preparation of oligomers, comprising contacting a linear olefin containing from 14 to 18 carbon atoms with a catalyst comprising a Y-zeolite having a silica to alumina ratio of about 40:1 or greater.
A process for the preparation of a synthetic lubricant base stock, comprising the following steps:
- (a) contacting a linear olefin containing from 12 to 24 carbon atoms with a catalyst comprising a Y-zeolite having a silica to alumina ratio greater than about 5:1;
- (b) separating out any remaining un-oligomerized olefin;
- and (c) hydrogenating the oligomer fraction resulting from step (b) to produce a synthetic lubricant base stock.
Dependencies are inferred from the claim text.