Process for upgrading an oligomerization product
AssigneePhillips Petroleum Company
InventorsAn-hsiang Wu, Charles A. Drake, Ronald D. Knudsen
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Abstract
A process is provided for upgrading an oligomerization product through hydrogenation and isomerization with some selective/minor cracking resulting in a synthetic lube base oil with improved pour point and viscosity index. The upgrading process includes contacting the oligomerization product with a hydrogenation catalyst and an isomerization catalyst under conversion conditions, which include the presence of hydrogen and a temperature sufficient to promote hydrogenation and isomerization with some selective/minor cracking. The hydrogenation catalyst contains a porous carrier material and a group VIII metal while the isomerization catalyst contains an aluminosilicate zeolite.
Claims50
A process for upgrading an oligomerization product comprising contacting said oligomerization product with a first solid material comprising a hydrogenation catalyst and a second solid material comprising an isomerization and selective/minor cracking catalyst under conversion conditions, thereby producing an upgraded product having a greater viscosity index than said oligomerization product as determined using test method ASTM D567.
A process for producing a synthetic base oil comprising contacting an oligomerization product under conversion conditions with:
- (a) a first solid material comprising a porous carrier material and a group VIII metal;
- and
- (b) a second solid material comprising a zeolite, wherein the oligomerization product is isomerized, selective/minor cracked, and hydrogenated to produce the synthesis base oil, wherein said synthetic base oil exhibits a greater viscosity index than said oligomerization product as determined using test method ASTM D567.
A process for upgrading an oligomerization product which comprises contacting said oligomerization product in the presence of hydrogen at a temperature in the range of from about 1 80° C. to about 230° C. with a catalyst system disposed in a reactor vessel, said catalyst system comprising:
- a first solid material comprising a hydrogenation catalyst;
- and
- a second solid material comprising an isomerization and selective/minor cracking catalyst.
Dependencies are inferred from the claim text.