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.:
Date of Patent:
Nov. 19, 2013
Filed:
Aug. 07, 2008
Chang Kuk Kim, Seoul, KR;
Jee Sun Shin, Seoul, KR;
Kyung Seok Noh, Gyeonggi-do, KR;
Ju Hyun Lee, Daejeon, KR;
Byoung IN Lee, Daejeon, KR;
Seung Woo Lee, Daejeon, KR;
DO Woan Kim, Daejeon, KR;
Sam Ryong Park, Daejeon, KR;
Seong Han Song, Gyeonggi-do, KR;
Gyung Rok Kim, Daejeon, KR;
Yoon Mang Hwang, Daejeon, KR;
Chang Kuk Kim, Seoul, KR;
Jee Sun Shin, Seoul, KR;
Kyung Seok Noh, Gyeonggi-do, KR;
Ju Hyun Lee, Daejeon, KR;
Byoung In Lee, Daejeon, KR;
Seung Woo Lee, Daejeon, KR;
Do Woan Kim, Daejeon, KR;
Sam Ryong Park, Daejeon, KR;
Seong Han Song, Gyeonggi-do, KR;
Gyung Rok Kim, Daejeon, KR;
Yoon Mang Hwang, Daejeon, KR;
SK Lubricants Co., Ltd., , KR;
Abstract
A method of manufacturing high-quality naphthenic base oils comprising a high aromatic content and a large amount of impurities with a boiling point higher than that of gasoline. High-quality naphthenic base oil may be manufactured from light cycle oil (LCO) and slurry oil (SLO), which are inexpensive, and have a high aromatic content, a large amount of impurities, and which are effluents of a fluidized catalytic cracking (FCC) unit. The method also relates to the pretreatment process of a feedstock, where the amounts of impurities (sulfur, nitrogen, polynuclear aromatic compounds and various metals components) in the feedstock are reduced.