Sk Innovation Co., Ltd.

Sk Energy Co., Ltd.

Do Hyoun Kim

Gyung Rok Kim

Do Woan Kim

Seung Woo Lee

Seung Hoon Oh

Sun Woong Choi

Jae Wook Ryu

Kyung Seok Noh

Bum Suk Chun

Byung Won Yoon

Hee Jung Jeon

Cheol Joong Kim

Jin Kyu Choi

Il Yong Jeong

Ha Na Song

Chang Woo Joo

Tae Won Uhm

Cheol Woo Park

Provided is a method for reducing the amount of organic acids in a hydrocarbon oil fraction by hydrogenating the organic acids in the hydrocarbon oil fraction under mild conditions. Provided is a new method able to overcome the problem of organic-acid-induced corrosion during the process of distillation, by using hydrogen or a hydrogen-containing mixed gas and a hydrogenation catalyst to subject the organic acids in the hydrocarbon oil fraction to hydrogenation at an appropriate temperature and pressure, thereby converting the same to hydrocarbons and so reducing the amount of organic acids in the hydrocarbon oil fraction.

Method for reducing the amount of organic acids in a hydrocarbon oil fraction

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

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Daejeon, South Korea

Do Hyoun Kim