Patents by Inventor Jihui Seo
Jihui Seo 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).
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Patent number: 11952345Abstract: 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 (Al2O3).Type: GrantFiled: August 22, 2022Date of Patent: April 9, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Jihui Seo, Jaeyong Lee, Pyung Soon Kim, Jin Woo Choung, Yongwoo Kim, Ji Hoon Park, Soo Min Kim, Jeong Jae Lee, Kwanyong Jeong
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Publication number: 20240076182Abstract: An operating method is disclosed for a dehydrogenation reaction system. The method includes providing a system having: an acid aqueous solution tank including an acid aqueous solution; a dehydrogenation reactor including a chemical hydride of a solid state and receiving an acid aqueous solution from the acid aqueous solution tank to react the chemical hydride with the acid aqueous solution to generate hydrogen; and a fuel cell stack receiving hydrogen generated from the dehydrogenation reactor to be reacted with oxygen to generate water and simultaneously to generate electrical energy. The method also includes recycling the water generated from the fuel cell stack to one or all of the acid aqueous solution tank, the dehydrogenation reactor, and a separate water tank. The acid is formic acid and, in in the dehydrogenation reactor, the temperature is in a range of 10° C. to 400° C. and the pressure is in a range of 1 bar to 100 bar.Type: ApplicationFiled: November 7, 2023Publication date: March 7, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Pyung Soon Kim, Jin Woo Choung, Jihui Seo, Suk Woo Nam, Young Suk Jo, Hyangsoo Jeong, Jaewon Kirk, Chang Won Yoon, Yongmin Kim
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Publication number: 20240059558Abstract: A dehydrogenation reaction apparatus includes: an aqueous add solution tank that stores an aqueous acid solution; a dehydrogenation reactor that stores a chemical hydride and selectively receives the aqueous acid solution stored in the aqueous add solution tank; and a heat control device. The heat control device is disposed inside or outside the dehydrogenation reactor and controls an internal temperature of the dehydrogenation reactor.Type: ApplicationFiled: October 21, 2022Publication date: February 22, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: 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
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Publication number: 20240055635Abstract: 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: ApplicationFiled: November 7, 2022Publication date: February 15, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: 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
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Patent number: 11826750Abstract: 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: GrantFiled: July 25, 2022Date of Patent: November 28, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: 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
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Publication number: 20230348266Abstract: 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: ApplicationFiled: November 11, 2022Publication date: November 2, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Jihui Seo, Jaeyong Lee, Pyung Soon Kim, Jin Woo Choung, Yongwoo Kim, Soo Min Kim, Kwanyong Jeong, Jeong Jae Lee, Ji Hoon Park
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Patent number: 11780729Abstract: 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: GrantFiled: June 15, 2021Date of Patent: October 10, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Pyung Soon Kim, Jin Woo Choung, Jihui Seo, Hyuntae Sohn, Yu-Jin Lee, Hyangsoo Jeong, Yoondo Kim, Chang Won Yoon, Yongmin Kim
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Publication number: 20230294981Abstract: 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: ApplicationFiled: November 7, 2022Publication date: September 21, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Jihui Seo, Jaeyong Lee, Pyung Soon Kim, Jin Woo Choung, Yongwoo Kim, Ji Hoon Park, Soo Min Kim, Jeong Jae Lee, Kwanyong Jeong
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Publication number: 20230294057Abstract: 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: ApplicationFiled: October 25, 2022Publication date: September 21, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: 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
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Publication number: 20230295090Abstract: 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: ApplicationFiled: August 22, 2022Publication date: September 21, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Jihui Seo, Jaeyong Lee, Pyung Soon Kim, Jin Woo Choung, Yongwoo Kim, Ji Hoon Park, Soo Min Kim, Jeong Jae Lee, Kwanyong Jeong
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Publication number: 20230256419Abstract: 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: ApplicationFiled: July 12, 2022Publication date: August 17, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: 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
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Publication number: 20230183061Abstract: 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: ApplicationFiled: July 13, 2022Publication date: June 15, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: 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
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Publication number: 20230182099Abstract: 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: ApplicationFiled: July 25, 2022Publication date: June 15, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: 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
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Publication number: 20230182100Abstract: 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: ApplicationFiled: July 27, 2022Publication date: June 15, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Yongwoo Kim, Jihui Seo, Jaeyong Lee, Pyung Soon Kim, Jin Woo Choung, Minkyu Kim, Jaewon Kirk, Suk Woo Nam, Hyangsoo Jeong, Yongmin Kim
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Patent number: 11594744Abstract: A hybrid dehydrogenation reaction system includes: an acid aqueous solution tank having an acid aqueous solution; an exothermic dehydrogenation reactor including a chemical hydride of a solid state and receiving the acid aqueous solution from the acid aqueous solution tank for an exothermic dehydrogenation reaction of the chemical hydride and the acid aqueous solution to generate hydrogen; an LOHC tank including a liquid organic hydrogen carrier (LOHC); and an endothermic dehydrogenation reactor receiving the liquid organic hydrogen carrier from the LOHC tank and generating hydrogen through an endothermic dehydrogenation reaction of the liquid organic hydrogen carrier by using heat generated from the exothermic dehydrogenation reactor.Type: GrantFiled: June 15, 2021Date of Patent: February 28, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jihui Seo, Jin Woo Choung, Pyung Soon Kim, Suk Woo Nam, Hyangsoo Jeong, Yongmin Kim, Jaewon Kirk, Chang Won Yoon
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Publication number: 20220250903Abstract: 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: ApplicationFiled: June 15, 2021Publication date: August 11, 2022Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Pyung Soon Kim, Jin Woo Choung, Jihui Seo, Hyuntae Sohn, Yu-Jin Lee, Hyangsoo Jeong, Yoondo Kim, Chang Won Yoon, Yongmin Kim
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Publication number: 20220250904Abstract: A dehydrogenation reaction device includes a dehydrogenation reactor having a solid chemical hydride and includes an add aqueous solution tank supplying an add aqueous solution to the dehydrogenation reactor. The dehydrogenation reactor includes a heating device, a cooling apparatus, a porous metal foam, or a combination thereof.Type: ApplicationFiled: June 15, 2021Publication date: August 11, 2022Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Pyung Soon Kim, Jin Woo Choung, Jihui Seo, Suk Woo Nam, Young Suk Jo, Hyangsoo Jeong, Jaewon Kirk, Chang Won Yoon, Yongmin Kim
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Publication number: 20220255101Abstract: A hybrid dehydrogenation reaction system includes: an acid aqueous solution tank having an acid aqueous solution; an exothermic dehydrogenation reactor including a chemical hydride of a solid state and receiving the acid aqueous solution from the acid aqueous solution tank for an exothermic dehydrogenation reaction of the chemical hydride and the acid aqueous solution to generate hydrogen; an LOHC tank including a liquid organic hydrogen carrier (LOHC); and an endothermic dehydrogenation reactor receiving the liquid organic hydrogen carrier from the LOHC tank and generating hydrogen through an endothermic dehydrogenation reaction of the liquid organic hydrogen carrier by using heat generated from the exothermic dehydrogenation reactor.Type: ApplicationFiled: June 15, 2021Publication date: August 11, 2022Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jihui Seo, Jin Woo Choung, Pyung Soon Kim, Suk Woo Nam, Hyangsoo Jeong, Yongmin Kim, Jaewon Kirk, Chang Won Yoon