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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8834706 B1

PDFFull Text
Date of Patent:
Sep. 16, 2014

Filed:

Jun. 03, 2011

Method for preparing lubricating base oils by using vacuum distilled deasphalted oil

Applicants:

Kyung Seok Noh, Daejeon, KR;

Jae Wook Ryu, Daejeon, KR;

DO Hyoun Kim, Daejeon, KR;

Gyung Rok Kim, Daejeon, KR;

Seung Woo Lee, Daejeon, KR;

DO Woan Kim, Daejeon, KR;

Sun Choi, Daejeon, KR;

Seung Hoon OH, Seoul, KR;

Byung Won Yoon, Daejeon, KR;

Bum Suk Chun, Daejeon, KR;

Inventors:

Kyung Seok Noh, Daejeon, KR;

Jae Wook Ryu, Daejeon, KR;

Do Hyoun Kim, Daejeon, KR;

Gyung Rok Kim, Daejeon, KR;

Seung Woo Lee, Daejeon, KR;

Do Woan Kim, Daejeon, KR;

Sun Choi, Daejeon, KR;

Seung Hoon Oh, Seoul, KR;

Byung Won Yoon, Daejeon, KR;

Bum Suk Chun, Daejeon, KR;

Assignee:

SK Innovation Co., Ltd., , KR;

Attorney:

DLA Piper LLP (US)

Primary Examiner:

Brian McCaig

Int. Cl.
CPC ...
C10G 67/02 (2006.01); B01J 29/12 (2006.01); C10G 67/04 (2006.01); B01J 27/045 (2006.01); B01J 27/049 (2006.01); B01J 29/74 (2006.01); B01J 35/00 (2006.01); B01J 29/85 (2006.01); C10M 177/00 (2006.01); C10G 45/58 (2006.01); C10G 65/04 (2006.01); B01J 29/70 (2006.01); B01J 29/44 (2006.01); B01J 29/22 (2006.01); B01J 27/051 (2006.01); C10G 59/06 (2006.01);
U.S. Cl.
CPC ...
C10G 67/0454 (2013.01); B01J 29/12 (2013.01); C10G 2300/1077 (2013.01); B01J 27/045 (2013.01); B01J 27/049 (2013.01); C10G 2300/206 (2013.01); B01J 29/7492 (2013.01); C10G 2300/4018 (2013.01); B01J 35/0006 (2013.01); C12N 2270/00 (2013.01); B01J 29/85 (2013.01); B01J 29/7415 (2013.01); C10M 177/00 (2013.01); B01J 29/7461 (2013.01); C10M 2203/1006 (2013.01); C10G 45/58 (2013.01); C10G 65/043 (2013.01); C01G 2300/107 (2013.01); B01J 35/0093 (2013.01); B01J 29/7484 (2013.01); B01J 29/7084 (2013.01); B01J 29/44 (2013.01); C10G 2300/1074 (2013.01); B01J 29/22 (2013.01); C10G 2300/302 (2013.01); C10G 67/02 (2013.01); C10G 67/0463 (2013.01); C10G 2400/10 (2013.01); B01J 27/051 (2013.01); C10G 59/06 (2013.01);
Abstract

The present invention relates to a method for preparing lubricating base oils by using vacuum distilled deasphalted oil, and more specifically, to a method for preparing various kinds of lubricating base oils by distilling a distillate obtained from a solvent deasphalting (SDA) process under reduced pressure to obtain heavy deasphalted oil (H-DAO) and light deasphalted (Lt-DAO) and then treating the H-DAO and the Lt-DAO by catalytic reactions, respectively. According to the present invention, it is possible to obtain heavy lubricating base oil (150BS) of a high viscosity grade which can not be obtained by a known catalytic reaction and a lubricating base oil of group III by hydrogenation, in a high yield, and thus economical efficiency is excellent.

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