Method of preparing lube base oil
AssigneesSK Innovation Co., Ltd., SK Enmove Co., Ltd.
InventorsMinje Kang, Yun Ha KIM, Do Woan KIM, Kyung Seok NOH
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Abstract
The present disclosure provides a method of preparing a lube base oil. The method comprises (a) providing a feed stream, (b) separating the feed stream into at least two fraction streams comprising a first fraction stream and a second fraction stream, and (c) before or after the separating of the feed stream, introducing the feed stream or at least two fraction streams into a first and second hydro-processing treatments to produce at least two product streams, and the first product stream has a higher viscosity index (VI) than the second product stream. The present disclosure also provides a lube base oil and a lubricant composition comprising the lube base oil.
Claims12
A method of preparing lube base oil, the method comprising:
- (a) providing a feed stream;
- (b) separating the feed stream into at least two fraction streams, comprising a first fraction stream a second fraction stream;
- and
- (c) before or after the separating of the feed stream, introducing the feed stream or the at least two fraction streams into a first and second hydro-processing treatments to produce at least two product streams,
- wherein the first product stream has a higher viscosity index (VI) than the second product stream.
A mineral oil-based lube base oil having a kinematic viscosity at 100° C. of 2 cSt or more and less than 4 cSt and a VI of at least 115.
A mineral oil-based lube base oil having a kinematic viscosity at 100° C. of 4 cSt or more and less than 8 cSt and a VI of at least 130.
Dependencies are inferred from the claim text.