Patents by Inventor Hee Jung Jeon

Hee Jung Jeon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12338212
    Abstract: 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?1, and the hydrogen/feedstock ratio of 45 to 1780 Nm3/m3 in the presence of the zeolite catalyst.
    Type: Grant
    Filed: August 7, 2023
    Date of Patent: June 24, 2025
    Assignees: SK INNOVATION CO., LTD., SK ENMOVE CO., LTD.
    Inventors: Yeon Ho Kim, Seung Woo Lee, Yoon Kyung Lee, Hee Jung Jeon
  • Publication number: 20250145899
    Abstract: 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.
    Type: Application
    Filed: January 14, 2025
    Publication date: May 8, 2025
    Inventors: Hee Jung Jeon, Ok Youn Kim, Dong Min Yun
  • Patent number: 12258526
    Abstract: 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.
    Type: Grant
    Filed: January 17, 2024
    Date of Patent: March 25, 2025
    Assignee: SK Innovation Co., Ltd.
    Inventors: Hee Jung Jeon, Ok Youn Kim, Dong Min Yun
  • Publication number: 20250092166
    Abstract: The present invention relates to a method of preparing a graft polymer, which includes: preparing a second diene-based rubber polymer by enlarging a first diene-based rubber polymer with an acidic group-containing acrylic polymer; preparing a first mixture comprising the second diene-based rubber polymer and a non-ionic emulsifier; and preparing a graft polymer latex by polymerizing an aromatic vinyl-based monomer and a vinyl cyanide-based monomer in the presence of the first mixture.
    Type: Application
    Filed: September 23, 2022
    Publication date: March 20, 2025
    Applicant: LG CHEM, LTD.
    Inventors: Moon Ja HWANG, Chang Hoe KIM, Min Su CHAE, Geon Soo KIM, Hee Jung JEON, Hyung Joon KIM
  • Patent number: 12221582
    Abstract: 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.
    Type: Grant
    Filed: September 9, 2022
    Date of Patent: February 11, 2025
    Assignees: SK Geo Centric Co., Ltd., SK Innovation Co., Ltd.
    Inventors: Ka Young Kim, Ok Youn Kim, Young Moo Park, Hee Jung Jeon
  • Patent number: 12091483
    Abstract: 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.
    Type: Grant
    Filed: September 7, 2020
    Date of Patent: September 17, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Hyung Joon Kim, Geon Soo Kim, Moon Ja Hwang, Hee Jung Jeon, Chang Hoe Kim, Min Su Chae
  • Publication number: 20240301307
    Abstract: 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.
    Type: Application
    Filed: January 17, 2024
    Publication date: September 12, 2024
    Inventors: Hee Jung Jeon, Ok Youn Kim, Dong Min Yun
  • Patent number: 12054681
    Abstract: 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.
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: August 6, 2024
    Assignees: SK Innovation Co., Ltd., SK Geo Centric Co., Ltd.
    Inventors: Hee Jung Jeon, Do Kyoung Kim, Jeong Eop Choi, Seung Woo Lee, Yoon Kyung Lee
  • Patent number: 12054683
    Abstract: 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.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: August 6, 2024
    Assignees: SK Innovation Co., Ltd., SK Geo Centric Co., Ltd.
    Inventors: Hee Jung Jeon, Yeon Ho Kim, Ok Youn Kim, Seung Eon Lee, Seung Woo Lee, Yoon Kyung Lee, Ka Young Kim, Young Moo Park, Ho Won Lee
  • Patent number: 12023651
    Abstract: 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.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: July 2, 2024
    Assignees: SK INNOVATION CO., LTD., SK ENMOVE CO., LTD.
    Inventors: Seung Woo Lee, Hee Jung Jeon, Yeon Ho Kim, Yoon Kyung Lee, Seon Ju Lim
  • Publication number: 20240182384
    Abstract: Provided is a method for converting waste plastic pyrolysis oil into light olefins with a high yield. The method includes (1) putting waste plastic pyrolysis oil into a reactor; (2) allowing the waste plastic pyrolysis oil to react in the reactor in the presence of a catalytic cracking catalyst containing (a) a compound of an alkali metal or a compound of an alkaline earth metal and (b) a zeolite to form a product; and (3) recovering light olefins by separating the catalytic cracking catalyst and oil from the product obtained in step (2).
    Type: Application
    Filed: September 28, 2023
    Publication date: June 6, 2024
    Inventors: Hee Jung Jeon, Ok Youn Kim, Ho Won Lee
  • Publication number: 20240158318
    Abstract: Provided is a method for converting waste plastic pyrolysis oil into light olefins with a high yield. The method includes: (1) inputting waste plastic pyrolysis oil into a reactor; (2) allowing the waste plastic pyrolysis oil to react in the reactor in the presence of a catalytic cracking catalyst containing a first metal and a second metal to form a product; and (3) recovering light olefins by separating the catalytic cracking catalyst and oil from the product obtained in step (2).
    Type: Application
    Filed: September 28, 2023
    Publication date: May 16, 2024
    Inventors: Hee Jung Jeon, Ok Youn Kim, Ho Won Lee
  • Publication number: 20240158229
    Abstract: Provided is a method for manufacturing syngas including (S1) heat-treating organic wastes under hydrogen and a catalyst in a first reactor; (S2) separating the catalyst and the hydrogen from a product of (S1) and recovering a first mixed gas from which the catalyst and the hydrogen have been removed; (S3) reforming the first mixed gas recovered in (S2) with water vapor to form a product; (S4) separating carbon dioxide from a product of (S3) and recovering a second mixed gas from which the carbon dioxide has been removed; (S5) converting the carbon dioxide separated in (S4) into carbon monoxide through a reverse Boudouard reaction in the second reactor; and (S6) mixing the hydrogen separated in (S2), the mixed gas recovered in (S4), and the carbon monoxide converted in (S5) to produce syngas.
    Type: Application
    Filed: September 28, 2023
    Publication date: May 16, 2024
    Inventors: Hee Jung Jeon, Ok Youn Kim, Dong Min Yun
  • Publication number: 20240140795
    Abstract: Provided is a method of manufacturing syngas including (S1) heat-treating organic wastes under a catalyst in a first reactor to produce a first mixed gas; (S2) separating the catalyst and carbon dioxide (CO2) from the first mixed gas, and recovering a mixed gas from which the catalyst and the carbon dioxide (CO2) have been removed; (S3) converting the carbon dioxide (CO2) separated in (S2) into carbon monoxide (CO) by a reverse Boudouard reaction in a second reactor; and (S4) mixing the mixed gas recovered in (S2) and the carbon monoxide (CO) converted in (S3) to produce syngas.
    Type: Application
    Filed: September 27, 2023
    Publication date: May 2, 2024
    Applicant: SK Innovation Co., Ltd.
    Inventors: Hee Jung Jeon, Ok Youn Kim, Dong Min Yun
  • Publication number: 20240116036
    Abstract: Proposed are an unsupported metallic catalyst for a selective ring-opening (SRO) reaction and a method of using the same catalyst, wherein the catalyst contains nickel (Ni), molybdenum (Mo), and tungsten (W).
    Type: Application
    Filed: July 14, 2023
    Publication date: April 11, 2024
    Inventors: Seung Woo LEE, Yeon Ho KIM, Yoon Kyung LEE, Hee Jung JEON
  • Publication number: 20240059631
    Abstract: 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?1, and the hydrogen/feedstock ratio of 45 to 1780 Nm3/m3 in the presence of the zeolite catalyst.
    Type: Application
    Filed: August 7, 2023
    Publication date: February 22, 2024
    Inventors: Yeon Ho KIM, Seung Woo LEE, Yoon Kyung LEE, Hee Jung JEON
  • Patent number: 11905474
    Abstract: 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 (NH4Cl), 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.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: February 20, 2024
    Assignees: SK Innovation Co., Ltd., SK Geo Centric Co., Ltd.
    Inventors: Hee Jung Jeon, Ok Youn Kim, Ka Young Kim, Young Moo Park, Ho Won Lee
  • Publication number: 20240018425
    Abstract: The present disclosure relates to a continuous refining method and device for treating waste plastic pyrolysis oil by introducing the oil into a first reactor and allowing an isodewaxing reaction to proceed at a first temperature in the presence of a weak acid site catalyst to form a first product; introducing the first product into a second reactor and hydrotreating the first product at a second temperature in the presence of a hydrotreating catalyst to allow a dechlorination reaction to proceed to form a second product; and introducing the second product into a third reactor and hydrotreating the second product at a third temperature in the presence of a hydrotreating catalyst to allow a denitrification reaction to form a third product, which can minimize process problems, improve operational stability, reduce impurities such as chlorine and metal, and provide internal isomers to improve the flow point and low temperature fluidity.
    Type: Application
    Filed: July 13, 2023
    Publication date: January 18, 2024
    Inventors: Hee Jung Jeon, Ka Young Kim, Ok Youn Kim, Young Moo Park, Jae Hwan Lee
  • Publication number: 20240018421
    Abstract: 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° 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.
    Type: Application
    Filed: September 25, 2023
    Publication date: January 18, 2024
    Inventors: Do Kyoung Kim, Ka Young Kim, Jeong Eop Choi, Ok Youn Kim, Hee Soo Kim, Young Moo Park, Ho Won Lee, Jae Suk Choi, Hee Jung Jeon
  • Patent number: 11834543
    Abstract: 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.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: December 5, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Hee Jung Jeon, Geon Soo Kim, Moon Ja Hwang, Hyung Joon Kim, Chang Hoe Kim, Min Su Chae