Sk Innovation Co., Ltd.

Sk Lubricants Co., Ltd.

Sk Holdings Co., Ltd.

Byoung In Lee

Gyung Rok Kim

Do Woan Kim

Seung Woo Lee

Tae Jin Kim

Seung Hoon Oh

Eun Kyoung Kim

Sang Soo Lee

Sung Won Kim

Dae Hyun Choo

Ju Hyun Lee

Sang Hun Oh

Yoon Kyung Lee

Seong Jun Lee

Kyung Seok Noh

Jong Ho Lim

Chang Kuk Kim

Cheol Joong Kim

Jae Suk Koh

Sam Ryong Park

Yoon Mang Hwang

Jee Sun Shin

Hong Seok Jung

Sam Ryong Pakr

Seon Yeong Jeon

Chun Young Kim

Jun Bae Hong

Seong Han Song

Jong Ho c/o Sk Corporation Lim

Jun Bae Sk Institute Of Technology Hong

Seon Yeong c/o Sk Corporation Jeon

The present invention relates to a method of producing aromatic products (benzene/toluene/xylene) and olefin products from petroleum fractions obtained by fluid catalytic cracking, and, more particularly, to a method of producing products comprising high-concentration aromatic products and high value-added light olefin products from light cycle oil obtained by fluid catalytic cracking.

Method for producing high value aromatics and olefin from light cycle oil produced by a fluidized catalytic cracking process

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

Disclosed herein is a method of producing an optically active thiophene-based compound using a simulated moving bed adsorption separation process, and more specifically, a method of continuously separating a racemic thiophene-based compound into its optically active thiophene-based compounds having high purity, through optical resolution using the simulated moving bed process. According to the method of the current invention, a racemic mixture of a thiophene-based compound can be continuously separated into its optically active thiophene-based compounds having high purity, which is an intermediate of optically active dorzolamide acting as a topical therapeutic agent for glaucoma, using a simulated moving bed adsorption separation technique, thereby increasing industrial usability.

Method for separating of optically pure thiophene compounds using simulated moving bed chromatography

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Daejeon, South Korea

Byoung In Lee