Sk Innovation Co., Ltd.

Sk Lubricants Co., Ltd.

Lg Chem, Ltd

Sk Geo Centric Co., Ltd.

Sk Global Chemical Co., Ltd.

Sk Energy Co., Ltd.

Sk Enmove Co., Ltd.

Hee Jung Jeon

Yong Woo Kim

Ok Youn Kim

Jeong Heon Ahn

Kyoung Hwan Oh

Suk Youn Kang

Yoon Kyung Lee

Young Moo Park

Yeon Ho Kim

Jin Hee Ok

Ka Young Kim

Wan Seop Kwon

Seung Woo Lee

Tae Jin Kim

Seung Hoon Oh

Hee Soo Kim

Ho Won Lee

Seong Ho Lee

Young Hwan Lee

Hyo Jin Bae

Young Min Chung

Geon Soo Kim

Young Seek Yoon

Hyung Joon Kim

Min Su Chae

Chang Hoe Kim

Do Kyoung Kim

Su Hwa Kim

Hak Mook Kim

Jeong Hoon Jo

Jin Sook Ryu

Cheol Joong Kim

Joong Min Park

Moon Ja Hwang

Ja Hyun Yang

Jong Chan Lee

Jong Jin Lee

Dong Jo Ryu

Dong Hui Kim

Gyung Rok Kim

Do Woan Kim

Se Eun Lee

Seon Hee Han

Jeong Eop Choi

Won Hee Kim

Won Mun Choi

Jae Wook Ryu

Sang Il Lee

Seung Ho Choi

Heung Yeal Choi

Yong Woon Kim

Jae Suk Choi

Woo Jin Cho

Suk Joon Yoo

Yoon Jae Yim

Seon Ju Lim

Dong Min Yun

Yu Ra Lee

Jong Su Lee

Seung Eon Lee

Il Yong Jeong

Jin Kyu Choi

Sin Young Kang

Cher Hee Park

Jae Hyun Koh

Do Hyoun Kim

Hyun Woong Park

Sang Heup Moon

Chang Woo Joo

Ha Na Song

Cheol Woo Park

Tae Won Uhm

Sin Gun Kang

Sang Jun Ju

A Ra Cho

The present invention provides an acrylic copolymer coagulant which is a copolymer of a monomer mixture comprising a carboxylic acid-based monomer and an acrylic monomer, and a method of preparing a graft copolymer using the same. According to the present invention, a graft copolymer excellent in impact strength, surface gloss characteristics, and processability can be prepared.

Acrylic copolymer coagulant and method of preparing graft copolymer using the same

According to an aspect of the present invention, provided is a zeolite catalyst having an MRE structure for hydro-isomerization. The zeolite catalyst has an adsorption volume ratio of lutidine to collidine measured by Fourier-transform infrared spectroscopy (FTIR) using lutidine and collidine as adsorbents of greater than 3 and less than or equal to 10. According to an aspect of the present invention, provided is a method of hydro-isomerization for a hydrocarbon feedstock, including subjecting the hydrocarbon feedstock to a hydro-isomerization reaction under conditions of a temperature of 200° C. to 500° C., a hydrogen pressure of 1 to 200 atmospheres, a liquid space velocity (LHSV) of 1.0 to 10.0 hr, and the hydrogen/feedstock ratio of 45 to 1780 Nm/min the presence of the zeolite catalyst.

Zeolite with improved hydro-isomerization activity

Provided are a method for manufacturing syngas including the steps of (S1) heat-treating organic waste in a first reactor to produce a first mixed gas; (S2) introducing the first mixed gas to a second reactor and subjecting it to methane reforming in the presence of a catalyst to produce a second mixed gas; (S3) separating the catalyst and carbon dioxide from the second mixed gas and recovering a third mixed gas from which the catalyst and the carbon dioxide have been removed; (S4) converting the carbon dioxide separated in step (S3) into carbon monoxide through a reverse Boudouard reaction in a third reactor; and (S5) mixing the third mixed gas recovered in step (S3) and the carbon monoxide converted in step (S4) to produce syngas, and an apparatus for manufacturing syngas.

Manufacturing method and manufacturing apparatus of syngas, and manufacturing method of liquid hydrocarbon using the same

A method and apparatus for refining waste plastic pyrolysis oil has an effect of converting the waste plastic pyrolysis oil into high value-added hydrocarbon oil having a high content of naphtha and kerosene, lowering a content of impurities such as chlorine, nitrogen, oxygen, and metal of the hydrocarbon oil, operating under milder process conditions, having excellent process efficiency, and having high process stability to be able to continuously produce refined oil.

Method and apparatus for producing high value-added oil from waste plastic pyrolysis oil

Provided is a method of preparing a graft polymer, which includes: polymerizing a monomer mixture comprising a carboxylic acid monomer and methyl acrylate, wherein the carboxylic acid monomer is included at 1.5 to 2.5 wt %, and thus preparing an acrylic coagulant having an average particle diameter of 60 to 70 nm; polymerizing diene-based monomers in the presence of an emulsifier containing a salt of a compound and thus preparing a first diene-based rubber polymer; enlarging the first diene-based rubber polymer using the acrylic coagulant and thus preparing a second diene-based rubber polymer; and graft-polymerizing an aromatic vinyl-based monomer and a vinyl cyanide-based monomer to the second diene-based rubber polymer and thus preparing a graft polymer.

Method of preparing graft polymer

Provided are a method of producing a Lube base oil composition including a) reacting at least a part of waste plastic pyrolysis oil having a boiling point in a range of 180 to 340° C. to remove impurities and oligomerize the oil; and b) hydroisomerizing at least a part of the product of step a). A lube base oil composition is also produced therefrom.

Method of producing lube base oil from middle distillate in pyrolysis oil derived from waste plastic

Provided is a technology of converting an oil having a high content of Cl into a solvent. Impurities such as Cl, S, N, and metals are removed from an oil having a boiling point of 180 to 340° C. in a waste oil having a high content of Cl, and hydroisomerization is carried out, thereby applying an oil having a high isoparaffin ratio as a solvent. After a separation by boiling points according to the properties of the solvent product, a solid acid material and an oil having a high Cl content are mixed, impurities are removed by a heat treatment at a high temperature, and hydroisomerization is carried out by a noble metal/1-D zeolite catalyst, thereby, manufacturing a solvent product.

Solvent composition prepared from waste oil and method of preparing the same

The present disclosure provides a catalyst for SRO reactions. The catalyst includes a solid acid material and a metal. In this case, pores of the catalyst corresponding to at least 20% of the total pore volume of the catalyst have a pore size of 10 nm or more. The present disclosure also provides a method of using the catalyst.

Catalyst for selective ring-opening reaction and method of using same

Provided are an apparatus and a method for refining pyrolysis oil in which a dechlorination reaction is performed under a first hydrotreating catalyst. Hydrogen chloride as a by-product is removed, and then a denitrification reaction is performed under a second hydrotreating catalyst, thereby preventing production of an ammonium salt (NHCl), and providing refined oil. It is excellent in prevention of corrosion of a reactor, improvement of durability, occurrence of differential pressure, process efficiency, has very low contents of impurities such as chlorine, nitrogen, and metal and olefin, and has excellent quality.

Apparatus and method for refining waste plastic pyrolysis oil using a separator

The present invention relates to a polymer coagulant including methacrylamide in a preferred range and an enlarged graft copolymer prepared using same. The polymer coagulant provided in the present invention may enlarge a conjugated diene-based polymer to a suitable particle diameter range, and there are advantages of achieving excellent impact resistance and flowability of a graft copolymer prepared from the polymer.

Polymer coagulant and graft copolymer comprising same

Provided are a method of producing a lubricating base oil composition including a) reacting at least a part of waste plastic pyrolysis oil having a boiling point in a range higher than 340&#xb0; C. to remove impurities and structurally isomerizing the oil; and b) hydroisomerizing at least a part of the product of step a), and a lubricating base oil composition produced therefrom. A lubricating base oil, which has more methyl branches than petroleum-based lubricating base oil, to have improved low-temperature properties may be provided.

Method of producing lubricating base oil from atmospheric residue in pyrolysis oil derived from waste plastic

Provided is a technology to convert an oil having a high content of Cl into a solvent. Impurities such as Cl, S, N, and metals are removed from an oil having a boiling point of 340&#xb0; C. or lower in a waste oil having a high content of Cl, and hydrogenation is carried out to recover an oil, and the oil may be applied as a solvent. Separation by boiling points to meet the properties of the solvent product is performed, a solid acid material and an oil having a high Cl content are mixed, impurities are removed by a heat treatment at a high temperature, and hydrogenation is carried out with a metal oxide catalyst, thereby manufacturing a solvent product.

A method for preparing a catalyst for use in polymerizing a conjugated diene-based monomer, the catalyst, and a method for preparing a conjugated diene-based polymer using the same are disclosed herein. In an embodiment, a method of preparing a catalyst comprises mixing a lanthanide rare earth element-containing compound, an alkylating agent compound and a halogen compound in the presence of a solvent to prepare a catalyst composition, adding a conjugated diene-based monomer to the catalyst composition to form a preformed catalyst composition, and aging the preformed catalyst composition at a temperature of &#x2212;1&#xb0; C. to &#x2212;15&#xb0; C. for 3 hours to 98 hours to prepare the catalyst. The catalyst has excellent catalyst activity and polymerization reactivity and is useful for preparing a conjugated diene-based polymer which has an excellent modification ratio and improved compounding properties.

Method for preparing catalyst for polymerizing conjugated diene, catalyst and method for preparing conjugated diene-based polymer using the same

The present invention provides a modifier, a modified and conjugated diene-based polymer which is modified using the same, and a rubber composition including the modified and conjugated diene-based polymer, and more particularly, a modifier which includes a compound represented by Formula 1 and is capable of improving the mixing properties between a conjugated diene-based polymer and a filler, a modified and conjugated diene-based polymer which is modified using the same, and a rubber composition including the modified and conjugated diene-based polymer.

Modifier, modified and conjugated diene-based polymer and rubber composition including the same

A method for preparing a modified conjugated diene-based polymer having excellent compounding properties and improved processability is disclosed herein. According to the method, a first polymer including a functional group is prepared using a modifier represented by Formula 1, and the first polymer is mixed with a sulfur halide. A modified conjugated diene-based polymer having excellent affinity with a filler, excellent compounding properties such as tensile properties and viscoelasticity properties, and excellent compounding processability, may be prepared.

Method for preparing modified conjugated diene-based polymer

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Daejeon, South Korea

Hee Jung Jeon