Patents by Inventor Ju Hwan IM

Ju Hwan IM 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).

  • Cobalt-Based Single-Atom Dehydrogenation Catalysts Having High Selectivity and Regenerability and Method for Producing Corresponding Olefins from Paraffins Using the Same
    Publication number: 20240367157
    Abstract: Provided is a dehydrogenation catalyst having single-atom cobalt loaded onto a support including a zirconia core surface-modified with silica, a method for producing the dehydrogenation catalyst, and a method for producing corresponding olefin through dehydrogenation of paraffin, particularly light paraffin, in the presence of the dehydrogenation catalyst.
    Type: Application
    Filed: July 17, 2024
    Publication date: November 7, 2024
    Inventors: Ju Hwan Im, Dong Min Yun, Ho Won Lee, Young Eun Cheon, Hee Soo Kim
  • Nickel-Based Oligomerization Catalysts and Method for Oligomerizing Light Olefins Using the Same
    Publication number: 20240326027
    Abstract: In the present disclosure, a heterogeneous nickel-based oligomerization catalyst in which nickel in the form of single atom is loaded on an Al-mesoporous silicate support by ion exchange and a method for producing the same, and a method for oligomerizing light olefins, specifically C4 olefins using the catalyst are described.
    Type: Application
    Filed: June 10, 2024
    Publication date: October 3, 2024
    Inventors: Jae Suk Choi, Ka Young Kim, Hee Soo Kim, Ju Hwan Im, Dae Hyun Choo, Ho Won Lee, Je Mi Lim
  • Cobalt-based single-atom dehydrogenation catalysts having high selectivity and regenerability and method for producing corresponding olefins from paraffins using the same
    Patent number: 12064750
    Abstract: Provided is a dehydrogenation catalyst having single-atom cobalt loaded onto a support including a zirconia core surface-modified with silica, a method for producing the dehydrogenation catalyst, and a method for producing corresponding olefin through dehydrogenation of paraffin, particularly light paraffin, in the presence of the dehydrogenation catalyst.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: August 20, 2024
    Assignee: SK Innovation Co., Ltd.
    Inventors: Ju Hwan Im, Dong Min Yun, Ho Won Lee, Young Eun Cheon, Hee Soo Kim
  • Nickel-based oligomerization catalysts and method for oligomerizing light olefins using the same
    Patent number: 12042787
    Abstract: In the present disclosure, a heterogeneous nickel-based oligomerization catalyst in which nickel in the form of single atom is loaded on an Al-mesoporous silicate support by ion exchange and a method for producing the same, and a method for oligomerizing light olefins, specifically C4 olefins using the catalyst are described.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: July 23, 2024
    Assignees: SK Innovation Co., Ltd., SK Geo Centric Co., Ltd.
    Inventors: Jae Suk Choi, Ka Young Kim, Hee Soo Kim, Ju Hwan Im, Dae Hyun Choo, Ho Won Lee, Je Mi Lim
  • Process of selectively hydrogenating gas mixture having high acetylene content
    Patent number: 11858886
    Abstract: Disclosed is a process for converting methane into value-added compounds. In this process, a gas mixture containing hydrogen as well as high-concentration acetylene formed through methane pyrolysis (e.g. non-oxidative coupling of methane) is selectively hydrogenated in the presence of a bimetallic supported catalyst. This process obtains ethylene from acetylene in the gas mixture while unreacted methane and hydrogen are recovered as byproducts and/or additionally recycled.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: January 2, 2024
    Assignee: SK Innovation Co., Ltd.
    Inventors: Dong Min Yun, Ju Hwan Im, Hee Soo Kim, Do Kyoung Kim, Dae Hyun Choo
  • SINGLE ATOMIC METAL CATALYST AND CARBON DIOXIDE CONVERSION SYSTEM USING THE SAME
    Publication number: 20230383426
    Abstract: An electrochemical hybrid catalyst has a structure in which a nitrogen-doped carbon nanostructure (N—C) composite is loaded or decorated with two single atom transition metals indirectly linked adjacent to each other, and thus exhibits high carbon monoxide selectivity and current density at a low overpotential during reduction reaction for converting carbon dioxide into carbon monoxide, and a carbon dioxide conversion system uses the same.
    Type: Application
    Filed: March 22, 2023
    Publication date: November 30, 2023
    Inventors: Hyun Su HAN, Ju Hwan IM, Hee Soo KIM, Tae Hong SEOK, Seung Ok LEE
  • POROUS AMORPHOUS METAL OXIDE-BASED CATALYSTS FOR OXYGEN EVOLUTION REACTION AND WATER SPLITTING SYSTEM USING THE SAME
    Publication number: 20230357940
    Abstract: Disclosed are an electrochemical catalyst capable of lowering the overpotential of the oxygen evolution reaction (OER) during a water splitting reaction in spite of using inexpensive metals (specifically, base metals) instead of conventional noble metal catalysts in the complex water-splitting reactions that require high overpotential, and a water splitting system using the same.
    Type: Application
    Filed: March 22, 2023
    Publication date: November 9, 2023
    Inventors: Hyun Su HAN, Hee Soo KIM, Tae Hong SEOK, Seung Ok LEE, Ju Hwan IM
  • NOBLE METAL NANOCLUSTER CATALYSTS FOR OXYGEN EVOLUTION REACTION AND WATER SPLITTING SYSTEM USING THE SAME
    Publication number: 20230330655
    Abstract: Disclosed are an electrochemical catalyst capable of lowering the overpotential of the oxygen evolution reaction (OER) during a water splitting reaction even with a very small amount of noble metal in the complicated water splitting reaction that requires high overpotential, and a water splitting system using the same.
    Type: Application
    Filed: March 23, 2023
    Publication date: October 19, 2023
    Inventors: Hyun Su HAN, Ju Hwan IM, Hee Soo KIM, Tae Hong SEOK, Seung Ok LEE
  • Cobalt-based single-atom dehydrogenation catalysts having improved thermal stability and method for producing olefins from corresponding paraffins by using the same
    Patent number: 11766664
    Abstract: Disclosed herein are a dehydrogenation catalyst having single-atom cobalt loaded onto a silica support that has undergone pretreatment including a thermal treatment and a high-temperature aqueous treatment (reaction), a preparation method therefor, and a method for producing olefins by dehydrogenating corresponding paraffins, particularly light paraffins in the presence of the dehydrogenation catalyst.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: September 26, 2023
    Assignee: SK Innovation Co., Ltd.
    Inventors: Young Eun Cheon, Hee Soo Kim, Dong Min Yun, Ho Won Lee, Ju Hwan Im
  • Cobalt-based single-atom dehydrogenation catalysts having improved thermal stability and method for producing olefins from corresponding paraffins by using the same
    Patent number: 11701640
    Abstract: Disclosed herein are a dehydrogenation catalyst having single-atom cobalt loaded onto a silica support that has undergone pretreatment including a thermal treatment and a high-temperature aqueous treatment (reaction), a preparation method therefor, and a method for producing olefins by dehydrogenating corresponding paraffins, particularly light paraffins in the presence of the dehydrogenation catalyst.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: July 18, 2023
    Assignee: SK Innovation Co., Ltd.
    Inventors: Young Eun Cheon, Hee Soo Kim, Dong Min Yun, Ho Won Lee, Ju Hwan Im
  • Process of Selectively Hydrogenating Gas Mixture Having High Acetylene Content
    Publication number: 20230131732
    Abstract: Disclosed is a process for converting methane into value-added compounds. In this process, a gas mixture containing hydrogen as well as high-concentration acetylene formed through methane pyrolysis (e.g. non-oxidative coupling of methane) is selectively hydrogenated in the presence of a bimetallic supported catalyst. This process obtains ethylene from acetylene in the gas mixture while unreacted methane and hydrogen are recovered as byproducts and/or additionally recycled.
    Type: Application
    Filed: October 26, 2022
    Publication date: April 27, 2023
    Inventors: Dong Min Yun, Ju Hwan Im, Hee Soo Kim, Do Kyoung Kim, Dae Hyun Choo
  • Alkali metal and/or alkaline earth metal-doped transition metal-hydrogen active metal composite oxide catalyst and process for preparing butadiene using the same
    Patent number: 11607671
    Abstract: In the present disclosure, a composite oxide catalyst capable of effectively suppressing side reactions at the time of dehydrogenation of C4 hydrocarbons having single bonds or one double bond and a process for preparing butadiene, in particular 1,3-butadiene, with a high selectivity and a high yield using the same are described.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: March 21, 2023
    Assignees: SK Innovation Co., Ltd., SK Geo Centric Co., Ltd.
    Inventors: Ju Hwan Im, Hee Soo Kim, Ho Won Lee
  • Shaped dehydrogenation catalysts and process for converting paraffins to corresponding olefins, using same
    Patent number: 11420191
    Abstract: Disclosed herein are a dehydrogenation catalyst having single-atom cobalt loaded on a silica-based, shaped support, a preparation method therefor, and a method for preparing an olefin by dehydrogenating a corresponding paraffin, particularly light paraffin in the presence of the dehydrogenation catalyst.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: August 23, 2022
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Ho Won Lee, Ju Hwan Im, Hee Soo Kim, Hye Jin Park, Je Mi Lim, Dae Hyun Choo
  • Cobalt-Based Single-Atom Dehydrogenation Catalysts Having High Selectivity and Regenerability and Method for Producing Corresponding Olefins from Paraffins Using the Same
    Publication number: 20220105496
    Abstract: Disclosed are a dehydrogenation catalyst having single-atom cobalt loaded onto a support including a zirconia core surface-modified with silica, a method for producing the dehydrogenation catalyst, and a method for producing corresponding olefin through dehydrogenation of paraffin, particularly light paraffin, in the presence of the dehydrogenation catalyst.
    Type: Application
    Filed: September 13, 2021
    Publication date: April 7, 2022
    Inventors: Ju Hwan Im, Dong Min Yun, Ho Won Lee, Young Eun Cheon, Hee Soo Kim
  • Nickel-Based Oligomerization Catalysts and Method for Oligomerizing Light Olefins Using the Same
    Publication number: 20220008900
    Abstract: In the present disclosure, a heterogeneous nickel-based oligomerization catalyst in which nickel in the form of single atom is loaded on an Al-mesoporous silicate support by ion exchange and a method for producing the same, and a method for oligomerizing light olefins, specifically C4 olefins using the catalyst are described.
    Type: Application
    Filed: November 29, 2019
    Publication date: January 13, 2022
    Inventors: Jae Suk Choi, Ka Young Kim, Hee Soo Kim, Ju Hwan Im, Dae Hyun Choo, Ho Won Lee, Je Mi Lim
  • Cobalt-Based Single-Atom Dehydrogenation Catalysts Having Improved Thermal Stability and Method for Producing Olefins From Corresponding Paraffins by Using the Same
    Publication number: 20210402379
    Abstract: Disclosed herein are a dehydrogenation catalyst having single-atom cobalt loaded onto a silica support that has undergone pretreatment including a thermal treatment and a high-temperature aqueous treatment (reaction), a preparation method therefor, and a method for producing olefins by dehydrogenating corresponding paraffins, particularly light paraffins in the presence of the dehydrogenation catalyst.
    Type: Application
    Filed: June 25, 2021
    Publication date: December 30, 2021
    Inventors: Young Eun Cheon, Hee Soo Kim, Dong Min Yun, Ho Won Lee, Ju Hwan Im
  • Cobalt-Based Single-Atom Dehydrogenation Catalysts and Method for Producing Corresponding Olefins from Paraffins Using the Same
    Publication number: 20210394160
    Abstract: In the present disclosure, a dehydrogenation catalyst in which cobalt in the form of single atom is supported on an inorganic oxide (specifically, silica) support in which an alkali metal in the form of single atom is fixed by alkali metal pretreatment and a method for producing the same, and a method for producing olefins by dehydrogenating corresponding paraffins, specifically light paraffins in the presence of the dehydrogenation catalyst are described.
    Type: Application
    Filed: October 30, 2019
    Publication date: December 23, 2021
    Inventors: Ho Won Lee, Je Mi Lim, Hee Soo Kim, Ju Hwan Im, Dae Hyun Choo, Ka Young Kim, Jae Suk Choi
  • Alkali Metal and/or Alkaline Earth Metal-Doped Transition Metal-Hydrogen Active Metal Composite Oxide Catalyst and Process for Preparing Butadiene Using the Same
    Publication number: 20210316277
    Abstract: In the present disclosure, a composite oxide catalyst capable of effectively suppressing side reactions at the time of dehydrogenation of C4 hydrocarbons having single bonds or one double bond and a process for preparing butadiene, in particular 1,3-butadiene, with a high selectivity and a high yield using the same are described.
    Type: Application
    Filed: April 7, 2021
    Publication date: October 14, 2021
    Inventors: Ju Hwan Im, Hee Soo Kim, Ho Won Lee
  • Shaped Dehydrogenation Catalysts and Process for Converting Paraffins to Corresponding Olefins, Using Same
    Publication number: 20210170370
    Abstract: Disclosed herein are a dehydrogenation catalyst having single-atom cobalt loaded on a silica-based, shaped support, a preparation method therefor, and a method for preparing an olefin by dehydrogenating a corresponding paraffin, particularly light paraffin in the presence of the dehydrogenation catalyst.
    Type: Application
    Filed: November 18, 2020
    Publication date: June 10, 2021
    Inventors: Ho Won Lee, Ju Hwan Im, Hee Soo Kim, Hye Jin Park, Je Mi Lim, Dae Hyun Choo
  • Catalyst containing metal cluster in structurally collapsed zeolite, and use thereof
    Patent number: 10406510
    Abstract: This invention relates to a hydrogen spillover-based catalyst and use thereof, wherein a hydrogen activation metal cluster is dispersed in the form of being encapsulated in a crystalline or amorphous aluminosilicate matrix which is partially or fully structurally collapsed zeolite, thereby exhibiting high hydroprocessing or dehydrogenation activity and suppressed C—C hydrogenolysis activity.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: September 10, 2019
    Assignees: SK INNOVATION CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Min Kee Choi, Ju Hwan Im, Do Woan Kim, Do Kyoung Kim, Tae Jin Kim, Seung Hoon Oh, Tae Hong Seok