Patents by Inventor Jin Woo Choung

Jin Woo Choung 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).

  • Publication number: 20240055635
    Abstract: A dehydrogenation reaction device is disclosed. The device includes a chemical hydride storage unit including a chemical hydride storage tank, a reaction unit including an acid aqueous solution storage tank, and a dehydrogenation reactor for generating hydrogen by reacting a chemical hydride with an acid aqueous solution. The device further includes a hydrogen storage unit including a hydrogen storage tank for storing the hydrogen produced in the dehydrogenation reactor, and a recovery unit for recovering the product produced in the dehydrogenation reactor.
    Type: Application
    Filed: November 7, 2022
    Publication date: February 15, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jaeyong Lee, Jin Woo Choung, Yongwoo Kim, Jihui Seo, Pyung Soon Kim, Yoondo Kim, Jaewon Kirk, Suk Woo Nam, Hyuntae Sohn, Yongmin Kim, Hyangsoo Jeong
  • Patent number: 11850574
    Abstract: A catalyst for preparing a synthesis gas includes: a mesoporous Al2O3 support including mesopores having a pore size of about 1 nm to about 30 nm; metal nanoparticles supported in the mesopores of the mesoporous Al2O3 support wherein the metal nanoparticles have a particle size of less than or equal to about 20 nm; and a metal oxide coating layer including particles wherein the metal oxide coating layer is coated on the surface of the mesoporous Al2O3 support and includes mesopores having a pore size of about 2 nm to about 50 nm.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: December 26, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Kyung Soo Park, Haeun Jeong, Jin Woo Choung, Ji Su Yu, Jae Min Park, Jong Wook Bae
  • Patent number: 11845666
    Abstract: Disclosed is a method for preparing a synthesis gas. The method may include performing a combined reforming reaction by injecting a reaction gas including water (H2O) and heat-treating it in the presence of the catalyst. The catalyst may include a mesoporous support including regularly distributed mesopores, metal nanoparticles supported on the support, and a metal oxide coating layer coated on a surface of the support.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: December 19, 2023
    Assignees: Hyundai Motor Company, Kia Corporation, Research & Business Foundation Sungkyunkwan University
    Inventors: Haeun Jeong, Jin Woo Choung, Jong Wook Bae, Kyung Soo Park, Ji Su Yu, Jaehyeon Kwon
  • Publication number: 20230382843
    Abstract: The present disclosure provides a method of preparing a catalyst for synthesizing dimethyl ether or methylacetate from synthetic gas that includes preparing a nanosheet ferrierite zeolite (FER), and co-precipitating the nanosheet ferrierite zeolite and a precursor of a Cu—Zn—Al-based oxide (CZA) to obtain a hybrid CZA/FER catalyst.
    Type: Application
    Filed: August 14, 2023
    Publication date: November 30, 2023
    Inventors: Chae Hwan Hong, Jin Woo Choung, Young Gul Hur, Jong Wook Bae, Hyun Seung Jung
  • Patent number: 11826750
    Abstract: A dehydrogenation reaction apparatus includes a dehydrogenation reactor having a reaction vessel that stores a chemical hydride; and a methane generator that converts carbon monoxide generated in the dehydrogenation reactor into methane.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: November 28, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yongwoo Kim, Jin Woo Choung, Jihui Seo, Jaeyong Lee, Pyung Soon Kim, Yoondo Kim, Yu-Jin Lee, Jaewon Kirk, Suk Woo Nam, Hyuntae Sohn, Yongmin Kim, Hyangsoo Jeong
  • Publication number: 20230348266
    Abstract: A dehydrogenation method is provided that includes subjecting a first hydrogen storage body including compound including two or more N-heterocycloalkyl groups, and second hydrogen storage body including a compound including a substituted or unsubstituted cycloalkyl group and an N-heterocycloalkyl group, to a dehydrogenation reaction in the presence of a catalyst to produce hydrogen.
    Type: Application
    Filed: November 11, 2022
    Publication date: November 2, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Jihui Seo, Jaeyong Lee, Pyung Soon Kim, Jin Woo Choung, Yongwoo Kim, Soo Min Kim, Kwanyong Jeong, Jeong Jae Lee, Ji Hoon Park
  • Patent number: 11780729
    Abstract: A hydrogen generating method includes generating hydrogen by dehydrogenation-reacting a chemical hydride of a solid state with an acid aqueous solution. The dehydrogenation-reaction is performed by reacting 1 mol of hydrogen atoms of the chemical hydride with an acid and water at a molar ratio of 0.5 to 2.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: October 10, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Pyung Soon Kim, Jin Woo Choung, Jihui Seo, Hyuntae Sohn, Yu-Jin Lee, Hyangsoo Jeong, Yoondo Kim, Chang Won Yoon, Yongmin Kim
  • Patent number: 11767285
    Abstract: The present disclosure provides a method of preparing a catalyst for synthesizing dimethyl ether or methylacetate from synthetic gas that includes preparing a nanosheet ferrierite zeolite (FER), and co-precipitating the nanosheet ferrierite zeolite and a precursor of a Cu—Zn—Al-based oxide (CZA) to obtain a hybrid CZA/FER catalyst.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: September 26, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, RESEARCH & BUSINESS FDN. SUNGKYUNKWAN UNIVERSITY
    Inventors: Chae Hwan Hong, Jin Woo Choung, Young Gul Hur, Jong Wook Bae, Hyun Seung Jung
  • Publication number: 20230294981
    Abstract: A low-temperature dehydrogenation method includes a dehydrogenation reaction of a reactant including a piperidine-based compound substituted with one or more alkyl groups. The dehydrogenation reaction takes place in the presence of a catalyst including an active metal. The active metal includes platinum (Pt), palladium (Pd), or a mixture thereof that is supported on a carrier including a composite metal oxide having alumina (Al2O3) and an additional metal oxide different from alumina, at a low temperature of 150° C. to 250° C., to produce hydrogen.
    Type: Application
    Filed: November 7, 2022
    Publication date: September 21, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Jihui Seo, Jaeyong Lee, Pyung Soon Kim, Jin Woo Choung, Yongwoo Kim, Ji Hoon Park, Soo Min Kim, Jeong Jae Lee, Kwanyong Jeong
  • Publication number: 20230294057
    Abstract: A dehydrogenation reaction apparatus and a system including the same are disclosed. The dehydrogenation reaction apparatus includes: a main housing; and a dehydrogenation reactor which is provided inside of the main housing and has a catalyst provided inside. In particular, the dehydrogenation reactor generates hydrogen from a liquid organic hydrogen carrier (LOHC). The dehydrogenation reaction apparatus further includes: a heating device provided inside of the main housing and configured to apply heat to the dehydrogenation reactor through a phase change material, where the phase change material is provided between the main housing, and the dehydrogenation reactor and the heating device.
    Type: Application
    Filed: October 25, 2022
    Publication date: September 21, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Pyung Soon Kim, Jin Woo Choung, Yongwoo Kim, Jihui Seo, Jaeyong Lee, Yongmin Kim, Suk Woo Nam, Hyuntae Sohn, Hyangsoo Jeong, Dong Gyun Kang, Arash Badakhsh, Donghyun Song
  • Publication number: 20230295090
    Abstract: Provided is a method for synthesizing bipyridine that includes performing a dimerization reaction of a reactant including a piperidine-based compound, a pyridine-based compound, or a mixture thereof in the presence of a catalyst in which an active metal is supported on a composite metal oxide support including silica (SiO2) and alumina (AI2O3).
    Type: Application
    Filed: August 22, 2022
    Publication date: September 21, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Jihui Seo, Jaeyong Lee, Pyung Soon Kim, Jin Woo Choung, Yongwoo Kim, Ji Hoon Park, Soo Min Kim, Jeong Jae Lee, Kwanyong Jeong
  • Publication number: 20230295367
    Abstract: Disclosed are a low-carbon polyurethane foam composition and a method for preparing the same. The low-carbon polyurethane foam composition may have improved foam cell uniformity while contributing to carbon reduction goals as a result of applying a polyether carbonate polyol containing a carbonate bond. The method for preparing the low-carbon polyurethane foam composition may include reacting a polyol mixture including a carbonate bond-containing polyether carbonate polyol and a petroleum-based polyether polyol, an isocyanate, and a silicone surfactant.
    Type: Application
    Filed: December 8, 2022
    Publication date: September 21, 2023
    Inventors: Chae Hwan Hong, Jin Woo Choung
  • Patent number: 11752491
    Abstract: Disclosed are a catalyst used for converting carbon dioxide to methanol by hydrogenation and a method preparing the sane. The caratlys may include: a mesoporous indium oxide; and a catalyst supported on the mesoporous indium oxide. Preferably, a porous structure of the mesoporous indium oxide may have Ia3d symmetry and may include mesopores and micropores interconnecting the mesopores.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: September 12, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Research & Business Foundation Sungkyunkwan University
    Inventors: Chae Hwan Hong, Jin Woo Choung, Jong Wook Bae, Tae Yeol Goag
  • Publication number: 20230256419
    Abstract: A catalyst for a dehydrogenation reaction includes a carrier including Al2O3 having a theta (?) phase, an active metal supported on the carrier and including a noble metal, and an auxiliary metal supported on the carrier and different from the active metal.
    Type: Application
    Filed: July 12, 2022
    Publication date: August 17, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Pyung Soon Kim, Jin Woo Choung, Yongwoo Kim, Jihui Seo, Jaeyong Lee, Sungeun Moon, Changil Ahn, Suk Woo Nam, Hyuntae Sohn, Yongmin Kim, Hyangsoo Jeong
  • Patent number: 11718720
    Abstract: Disclosed are a composite cellulose nanosheet with excellent transparency and strength and manufacturing method thereof. The manufacturing method of a composite cellulose nanosheet includes: preparing a dispersion including a cellulose nanofiber and a cellulose nanocrystal; preparing a nanosheet support with the dispersion; contacting the nanosheet support with a crosslinking agent; and placing the nanosheet support that has contacted the crosslinking agent between two sheets of barrier materials such as two sheets of glass plate.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: August 8, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Chae Hwan Hong, Jin Woo Choung, Jungmok You, Kangyun Lee, Youngho Jun, Dabum Kim, Goo Min Kwon
  • Patent number: 11701647
    Abstract: Disclosed are a catalyst for preparing a synthetic gas through dry reforming, a method preparing the catalyst, and a method using the catalyst for preparing the synthetic gas. The catalyst may include: a support including regularly distributed mesopores; metal nanoparticles supported on the support; and a metal oxide coating layer coated on a surface of the support.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: July 18, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Research & Business Foundation Sunskyunkwan University
    Inventors: Haeun Jeong, Jin Woo Choung, Kyung Soo Park, Jaehyeon Kwon, Ji Su Yu, Jong Wook Bae
  • Publication number: 20230182099
    Abstract: A dehydrogenation reaction apparatus includes a dehydrogenation reactor having a reaction vessel that stores a chemical hydride; and a methane generator that converts carbon monoxide generated in the dehydrogenation reactor into methane.
    Type: Application
    Filed: July 25, 2022
    Publication date: June 15, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yongwoo Kim, Jin Woo Choung, Jihui Seo, Jaeyong Lee, Pyung Soon Kim, Yoondo Kim, Yu-Jin Lee, Jaewon Kirk, Suk Woo Nam, Hyuntae Sohn, Yongmin Kim, Hyangsoo Jeong
  • Publication number: 20230183061
    Abstract: A dehydrogenation reaction device includes: an acid aqueous solution storage unit including a first aqueous acid solution; a water storage unit including water; and a dehydrogenation reaction unit including a chemical hydride. The dehydrogenation reaction unit receives a second aqueous acid solution in which the first aqueous acid solution and water are mixed, and further reacts the chemical hydride and the second aqueous acid solution to generate hydrogen.
    Type: Application
    Filed: July 13, 2022
    Publication date: June 15, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yongwoo Kim, Jin Woo Choung, Jihui Seo, Jaeyong Lee, Pyung Soon Kim, Minkyu Kim, Yoondo Kim, Yu-Jin Lee, Jaewon Kirk, Suk Woo Nam, Yongmin Kim, Hyangsoo Jeong
  • Publication number: 20230182100
    Abstract: A dehydrogenation reaction apparatus is disclosed. An embodiment of the present disclosure provides a dehydrogenation reaction apparatus, including: a dehydrogenation reactor that includes a reaction vessel configured to store a chemical hydride, and at least one partition wall partitioning an inner space of the reaction vessel into a plurality of reaction chambers; and a buffer tank configured to temporarily store hydrogen generated in the dehydrogenation reactor and then supply the hydrogen to the fuel cell.
    Type: Application
    Filed: July 27, 2022
    Publication date: June 15, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yongwoo Kim, Jihui Seo, Jaeyong Lee, Pyung Soon Kim, Jin Woo Choung, Minkyu Kim, Jaewon Kirk, Suk Woo Nam, Hyangsoo Jeong, Yongmin Kim
  • Patent number: 11648539
    Abstract: Disclosed is a method for preparing a catalyst for a gasoline reaction of dimethyl ether that includes reacting a silica source, an aluminum source, and a structural derivative to synthesize a zeolite sol, mixing an alcohol with an organic template to form an emulsion phase, and adding a zeolite sol to the emulsion phase to perform a reaction.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: May 16, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, RESEARCH & BUSINESS FOUDATION SUNGKYUNKWAN UNI.
    Inventors: Chae Hwan Hong, Jin Woo Choung, Young Gul Hur, Jong Wook Bae, Jong Jin Kim