Sk Innovation Co., Ltd.

Sk Lubricants Co., Ltd.

Sk Enmove Co., Ltd.

Sk Innovation Co., Ltd. and Sk Enmove Co., Ltd.

Kyung Seok Noh

Gyung Rok Kim

Do Woan Kim

Seung Hoon Oh

Sun Woong Choi

Jae Wook Ryu

Seung Woo Lee

Jin Hee Ok

Young Wook Jeon

Jun Soo Park

Sam Ryong Park

Hak Mook Kim

Yong Rae Cho

Do Hyoun Kim

Bum Suk Chun

Byung Won Yoon

Sun Choi

Eun Kyoung Kim

Yong Seung Kim

Ju Hyun Lee

Hyuck Lee

Yong Woon Kim

Chang Kuk Kim

Jong Hyung Lee

Cheol Joong Kim

Seung Eon Lee

Byeung Soo Lim

Sun Hyuk Bae

Byoung In Lee

Byoung Mu Chang

Tae Young Jang

Yoon Mang Hwang

Kang Min Jung

Kyeong Hak Seong

Jee Sun Shin

Young Wook Jeong

Seong Han Song

A method of recycling waste lubricant. The method includes providing a waste lubricant-derived oil fraction, pretreating the waste lubricant-derived oil fraction, and hydrocracking the pretreated waste lubricant-derived oil fraction. The method has economic advantages in that waste lubricant can be recycled into fuel oil and high-grade lube base oil with a relatively high yield compared to a lube base oil manufacturing process utilizing only unconverted oil as a feedstock.

Lube base oil manufacturing process utilizing refined oil fraction of waste lubricant, and lube base oil manufactured thereby

Proposed is a process of producing a high-quality lube base oil using a refined oil fraction obtained from waste lubricant as a feedstock. The process includes purifying waste lubricant to obtain a refined oil fraction, pretreating the refined oil fraction, and blending the pretreated refined oil fraction with unconverted oil (UCO), before or after vacuum distillation and catalytic dewaxing of the unconverted oil, or between the vacuum distillation and the catalytic dewaxing of the unconverted oil.

Process of producing high-quality lube base oil by using refined oil fraction of waste lubricant

Proposed is a mineral lubricating base oil having improved low-temperature performance, in which the lubricating base oil has kinematic viscosity of 9.0 cSt or less (at 40&#xb0; C.), kinematic viscosity of 2.5 cSt or less (at 100&#xb0; C.), and a pour point of &#x2212;50&#xb0; C. or less.

Mineral base oil having improved low temperature property, method for manufacturing same, and lubrication oil product comprising same

Disclosed is a mineral base oil including 85 to 92 wt % of a paraffinic hydrocarbon and 8 to 15 wt % of a naphthenic hydrocarbon and having a Noack volatility of 10 to 12 wt % and a viscosity index of 132 to 142.

Mineral base oil having high viscosity index and improved volatility and method of manufacturing same

Disclosed is a method of manufacturing high quality lube base oil (Group III) from unconverted oil having various properties obtained in a variety of hydrocrackers using improved catalytic dewaxing and hydrofinishing, the method including producing unconverted oil of at least one kind in the same or different hydrocrackers; subjecting the unconverted oil to vacuum distillation; supplying all or part of the distillate fractions to a catalytic dewaxing reactor; supplying the dewaxed oil fraction to a hydrofinishing reactor; and stripping the hydrofinished light oil fraction, wherein make-up hydrogen is supplied upstream of the hydrofinishing reactor to increase hydrogen partial pressure, thereby enabling high quality base oil to be manufactured at high yield under optimal process conditions using unconverted oil produced by hydrocracking under various conditions.

Method of manufacturing high quality lube base oil using unconverted oil

This invention relates to a petroleum refining method for producing high value-added clean petroleum products and aromatics (Benzene/Toluene/Xylene) together, by which low pollution petroleum products including liquefied petroleum gas or low-sulfur gas oil and aromatics can be efficiently produced together from a fluid catalytic cracked oil fraction.

Process for the preparation of clean fuel and aromatics from hydrocarbon mixtures catalytic cracked on fluid bed

Disclosed is a method of simultaneously manufacturing high quality naphthenic base oil and heavy base oil using a single catalyst system, by subjecting an oil fraction (slurry oil or light cycle oil) produced by fluid catalytic cracking and an oil fraction (deasphalted oil) produced by solvent deasphalting to hydrotreating, catalytic dewaxing and hydrofinishing of the single catalyst system, thereby obtaining not only products having low viscosity but also heavy base oil products (150BS) having high viscosity which was impossible to obtain using a conventional catalytic reaction process, and also thereby producing base oil products having different properties using the single catalyst system, thus generating economic benefits and exhibiting superior efficiency.

Method of simultaneously manufacturing high quality naphthenic base oil and heavy base oil

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.

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

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.

Process for manufacturing high quality naphthenic base oils

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Uijeongbu-si, South Korea

Kyung Seok Noh