Patents by Inventor Kyoung Su Ha

Kyoung Su Ha 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: 11148984
    Abstract: The present invention relates to a method of preparing an aromatic compound from acetylene, which includes synthesizing an aromatic compound from an acetylene-containing reactant gas in the presence of a zeolite catalyst for the aromatization of acetylene, and subjecting the zeolite catalyst deactivated by the coke formed in the aromatization of acetylene, to plasma treatment at ambient temperature and pressure so as to selectively remove the external cokes and partial internal coke, thereby regenerating the zeolite catalyst; a method of regenerating the zeolite catalyst used in the aromatization of acetylene by plasma treatment; and a regenerated zeolite catalyst for the aromatization of acetylene, prepared thereof.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: October 19, 2021
    Assignee: Industry-University Cooperation Foundation Sogang University
    Inventors: Kyoung-Su Ha, MahnJung Kim, Juchan Kim, Jaekwon Jeoung
  • Publication number: 20210260558
    Abstract: The present invention relates to a dielectric barrier discharge (DBD) plasma reactor for the preparation of C2+ hydrocarbons from methane, wherein the DBD plasma reactor comprises macroporous silica, as a dielectric material, and optionally a photocatalyst that is impregnated into the pores of the macroporous silica.
    Type: Application
    Filed: October 20, 2020
    Publication date: August 26, 2021
    Applicants: Sogang University Research & Business Development Foundation, Korea Advanced Institute of Science and Technology
    Inventors: Kyoung-Su Ha, Jinwoo Lee, Juchan Kim, Namheon Lee, Seongseop Kim, Yeongkwang Bae
  • Patent number: 11001503
    Abstract: The present invention relates to a method of preparing an MFI zeolite with a microporous and mesoporous hierarchical structure in which a non-benzene-based first structure-directing agent, which provides ordered microporous pore sizes and a framework of MFI zeolite seed crystals, and a second structure-directing agent containing one benzene ring and an ammonium ion, which functions as a mesopore-directing agent without interfering with the function of the first structure-directing agent, are simultaneously used; an MFI zeolite with a microporous and mesoporous hierarchical structure, which is prepared by the method, and a catalyst use thereof for a reaction of converting acetylene into an aromatic compound; and a method of preparing an aromatic compound from acetylene using the catalyst.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: May 11, 2021
    Assignee: Sogang University Research Foundation
    Inventors: Kyoung-Su Ha, Kwang Min Kim, Jong Hyun Jeon, Choongik Kim, Daegak Kim
  • Publication number: 20200129952
    Abstract: Provided are a dielectric barrier discharge (DBD) plasma reactor including dielectric particles in a packed-bed in a discharge zone, e.g., a DBD plasma reactor for non-oxidative coupling of methane in which an average gap distance between dielectric particles in the packed-bed is adjusted to improve methane conversion and/or product selectivity; a method of regenerating dielectric particles including removing coke, which sis produced by side reactions, from the dielectric particles deactivated by the coke by using a low temperature plasma in an oxidizing atmosphere in the reactor; a method of manufacturing C2+ hydrocarbons, the method including converting methane into C2+ hydrocarbons including ethylene and/or ethane by non-oxidative coupling of methane in the reactor; and a method of manufacturing hydrogen, the method including generating hydrogen from methane by non-oxidative coupling of methane in the reactor.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 30, 2020
    Applicant: Industry-University Cooperation Foundation Sogang University
    Inventors: Kyoung-Su Ha, Juchan Kim, Jinwon Lee, Jaekwon Jeoung
  • Publication number: 20190359493
    Abstract: The present invention relates to a method of preparing an MFI zeolite with a microporous and mesoporous hierarchical structure in which a non-benzene-based first structure-directing agent, which provides ordered microporous pore sizes and a framework of MFI zeolite seed crystals, and a second structure-directing agent containing one benzene ring and an ammonium ion, which functions as a mesopore-directing agent without interfering with the function of the first structure-directing agent, are simultaneously used; an MFI zeolite with a microporous and mesoporous hierarchical structure, which is prepared by the method, and a catalyst use thereof for a reaction of converting acetylene into an aromatic compound; and a method of preparing an aromatic compound from acetylene using the catalyst.
    Type: Application
    Filed: December 14, 2017
    Publication date: November 28, 2019
    Inventors: Kyoung-Su HA, Kwang Min KIM, Jong Hyun JEON, Choongik KIM, Daegak KIM
  • Publication number: 20190262816
    Abstract: The present invention relates to a method of preparing an aromatic compound from acetylene, which includes synthesizing an aromatic compound from an acetylene-containing reactant gas in the presence of a zeolite catalyst for the aromatization of acetylene, and subjecting the zeolite catalyst deactivated by the coke formed in the aromatization of acetylene, to plasma treatment at ambient temperature and pressure so as to selectively remove the external cokes and partial internal coke, thereby regenerating the zeolite catalyst; a method of regenerating the zeolite catalyst used in the aromatization of acetylene by plasma treatment; and a regenerated zeolite catalyst for the aromatization of acetylene, prepared thereof.
    Type: Application
    Filed: February 28, 2019
    Publication date: August 29, 2019
    Inventors: Kyoung-Su Ha, MahnJung Kim, Juchan Kim, Jaekwon Jeoung
  • Patent number: 9815046
    Abstract: The present invention relates to a method for producing the activated catalyst for Fischer-Tropsch synthesis comprising: a first step of reducing a catalyst for Fischer-Tropsch synthesis; a second step of preparing liquid hydrocarbon in which a part or all of molecular oxygen is eliminated; and a third step of introducing the reduced catalyst prepared in the first step into the liquid hydrocarbon prepared in the second step while blocking its contact with air. Since the reduced catalyst used for Fischer-Tropsch synthesis is introduced into liquid hydrocarbon from which molecular oxygen is removed or coated by liquid hydrocarbon, the catalyst for Fischer-Tropsch synthesis activated based on the present invention maintains a high activity even if exposed to the air for a long time, thereby easily facilitating the long-term storage and long-distance transfer of the reduced catalyst.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: November 14, 2017
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Kyoung Su Ha, Geun Jae Kwak, Min Hee Woo, Yun Jo Lee, Ki Won Jun
  • Patent number: 9760228
    Abstract: Disclosed is a transparent electrode pattern structure including: a first transparent electrode layer and a second transparent electrode layer which are stacked on a transparent substrate in a predetermined pattern, respectively; an insulation layer disposed between the first transparent electrode layer and the second transparent electrode layer; and contact holes formed in the insulation layer to electrically connect the first transparent electrode layer with the second transparent electrode layer; wherein the first transparent electrode layer and the second transparent electrode layer have a thickness of 100 to 200 nm, respectively, and the insulation layer has a thickness of 1,000 to 2,000 nm, thereby considerably decreasing a difference in reflectance on separate positions, as well as a touch screen panel including the transparent electrode pattern structure.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: September 12, 2017
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Gi Hwan Ahn, Kyoung Su Ha, Yoo Sung Lee, Yong Sun Han
  • Patent number: 9489914
    Abstract: Disclosed is a transparent electrode laminate including: sensing electrodes including first patterns formed in a first direction, and second patterns formed in a second direction; bridge electrodes configured to electrically connected separated unit patterns of the second patterns; and an insulation layer disposed between the sensing electrodes and the bridge electrodes, wherein metal patterns are formed on the insulation layer exposed between the first pattern and the second pattern, thereby obtaining a high transparency by minimizing a difference in reflectance for each position and reducing the pattern visual recognition.
    Type: Grant
    Filed: September 13, 2014
    Date of Patent: November 8, 2016
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Kyoung Su Ha, Gi Hwan Ahn
  • Publication number: 20160296918
    Abstract: The present invention relates to a method for producing the activated catalyst for Fischer-Tropsch synthesis comprising: a first step of reducing a catalyst for Fischer-Tropsch synthesis; a second step of preparing liquid hydrocarbon in which a part or all of molecular oxygen is eliminated; and a third step of introducing the reduced catalyst prepared in the first step into the liquid hydrocarbon prepared in the second step while blocking its contact with air. Since the reduced catalyst used for Fischer-Tropsch synthesis is introduced into liquid hydrocarbon from which molecular oxygen is removed or coated by liquid hydrocarbon, the catalyst for Fischer-Tropsch synthesis activated based on the present invention maintains a high activity even if exposed to the air for a long time, thereby easily facilitating the long-term storage and long-distance transfer of the reduced catalyst.
    Type: Application
    Filed: November 26, 2014
    Publication date: October 13, 2016
    Inventors: Kyoung Su HA, Geun Jae KWAK, Min Hee WOO, Yun Jo LEE, Ki Won JUN
  • Patent number: 9446370
    Abstract: The invention relates to a reactor system, comprising a heat-exchange unit and a reaction unit that are assembled together into a structure. The heat-exchange unit has a plurality of plate or corrugated-plate heat exchangers, and is formed so as to attachable/detachable to/from the reaction unit and insertable into the latter. Accordingly, a catalyst may be attached to a heat-transfer surface of a heat exchanger by a washcoat method or the like, thus maximizing heat-transfer efficiency and enabling the easy removal or reattachment of the catalyst when the enabling the easy removal or reattachment of the catalyst at the end of the lifespan of the catalyst.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: September 20, 2016
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Kyoung Su Ha, Geun Jae Kwak, Jae-Hoon Jung, Joo Young Cheon, Ki Won Jun
  • Patent number: 9403690
    Abstract: Provided is a preparation method for a mesoporous zeolite, particularly a method for preparing mesoporous zeolite through a simple process without using costly materials such as an organic amine template or a surfactant. The method includes 1) forming a synthetic zeolite gel by mixing a silica precursor, an aluminum precursor and water and aging the resulted mixture; 2) carrying out zeolite synthesis by subjecting the synthetic zeolite gel to a hydrothermal reaction; 3) cooling the synthesized zeolite from the above step 2), then adding a basic solution thereto and allowing them to react, thereby obtaining a mesoporous zeolite slurry; and 4) washing the mesoporous zeolite slurry with water, drying and firing it, thereby obtaining a mesoporous zeolite.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: August 2, 2016
    Assignees: HANWHA TOTAL PETROCHEMICAL CO., LTD., KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Jeong Rang Kim, Yeon Shick Yoo, Jin Suk Lee, Ho Sik Chang, Yun Jo Lee, Ki Won Jun, Jo Yong Park, Kyoung Su Ha
  • Publication number: 20160170540
    Abstract: The present invention relates to a polarizing-plate-integrated touch-sensing electrode. More specifically, the present invention relates to a polarizing-plate-integrated touch-sensing electrode including at least one sensing pattern disposed on at least one surface of the polarizing plate. The polarizing-plate-integrated touch-sensing electrode may implement a thin-film structure and have excellent visibility.
    Type: Application
    Filed: February 22, 2016
    Publication date: June 16, 2016
    Inventors: Min Soo YANG, Dong Pil PARK, Byung Hoon SONG, Kyoung Su HA
  • Publication number: 20160154524
    Abstract: A retarder-integrated touch-sensing electrode includes at least one sensing pattern formed on at least one surface of a retarder, wherein the difference in refractive index between the retarder and the sensing pattern disposed on the one surface of the retarder is about 0.8 or less. Accordingly, the retarder-integrated touch-sensing electrode implements a thin-film structure and has excellent visibility.
    Type: Application
    Filed: February 5, 2016
    Publication date: June 2, 2016
    Inventors: Min Soo YANG, Dong Pil PARK, Byung Hoon SONG, Kyoung Su HA
  • Publication number: 20160081183
    Abstract: Disclosed is a transparent electrode laminate including: sensing electrodes including first patterns formed in a first direction, and second patterns formed in a second direction; bridge electrodes configured to electrically connected separated unit patterns of the second patterns; and an insulation layer disposed between the sensing electrodes and the bridge electrodes, wherein metal patterns are formed on the insulation layer exposed between the first pattern and the second pattern, thereby obtaining a high transparency by minimizing a difference in reflectance for each position and reducing the pattern visual recognition.
    Type: Application
    Filed: September 13, 2014
    Publication date: March 17, 2016
    Inventors: Kyoung Su HA, Gi Hwan AHN
  • Patent number: 9266080
    Abstract: Disclosed is a reaction device for producing hydrocarbons from synthesis gas, in which hydrocarbons, olefins, oxygenates, etc., are produced over a Fischer-Tropsch catalyst by using synthesis gas, so that the catalyst particles can easily be from a slurry which is discharged to the outside. That is, the present invention provides a reaction device for producing hydrocarbons from synthesis gas, in which an internal filter system for separating particles enlarged due to agglomeration phenomenon of a catalyst is installed inside the reactor, and a separating device is separately disposed outside, such that it is possible to recirculate only particles having a size appropriate for performing F-T synthesis in the slurry phase, and additionally, it is possible to effectively discharge and process a catalyst aggregated due to a combination of fine catalyst particles, the catalyst chipped off during the operation, etc., liquid hydrocarbon, resulting water, etc., in the slurry phase reactor.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: February 23, 2016
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Kyoung Su Ha, Du Eil Kim, Gyu In Jung, Jong Wook Bae, Ki Won Jun
  • Publication number: 20160048242
    Abstract: Disclosed is a transparent electrode pattern structure including: a first transparent electrode layer and a second transparent electrode layer which are stacked on a transparent substrate in a predetermined pattern, respectively; an insulation layer disposed between the first transparent electrode layer and the second transparent electrode layer; and contact holes formed in the insulation layer to electrically connect the first transparent electrode layer with the second transparent electrode layer; wherein the first transparent electrode layer and the second transparent electrode layer have a thickness of 100 to 200 nm, respectively, and the insulation layer has a thickness of 1,000 to 2,000 nm, thereby considerably decreasing a difference in reflectance on separate positions, as well as a touch screen panel including the transparent electrode pattern structure.
    Type: Application
    Filed: February 21, 2014
    Publication date: February 18, 2016
    Inventors: Gi Hwan AHN, Kyoung Su HA, Yoo Sung LEE, Yong Sun HAN
  • Patent number: 9259717
    Abstract: The present invention relates to: a catalyst activation method for Fischer-Tropsch synthesis; a catalyst regeneration method for Fischer-Tropsch synthesis; and a method for producing a liquid or solid hydrocarbon by using the Fischer-Tropsch synthesis reaction. The temperatures required for a metal carbide producing and activating reaction is markedly lower than existing catalyst activation temperatures, and the catalyst can be activated under conditions that are the same as Fischer-Tropsch synthesis reaction conditions, and thus there is no need for separate reduction equipment in the reactor, and a Fischer-Tropsch synthesis catalyst which has been used for a long time can be regenerated within the reactor without the catalyst being isolated or extracted from the reactor.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: February 16, 2016
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Kyoung Su Ha, Geun Jae Kwak, Jae Hoon Jung, Joo Young Cheon, Min Hee Woo, Yun Jo Lee, Ki Won Jun
  • Patent number: 9012352
    Abstract: The present invention relates to a catalyst for Fischer-Tropsch synthesis which has excellent heat transfer capability. This catalyst contains (1) central core particle or particles made of a heat transfer material (HTM) selected from the group consisting of a metal, a metal oxide, a ceramic, and a mixture thereof; and (2) outer particle layer which surrounds the central core particles and is attached to the surfaces of the central core particles by a binder material layer. The outer particle layer has a support and catalyst particles in a powder form containing metal particles disposed on the support. The catalyst having such a dual particle structure shows excellent heat transfer capability and, thus, exhibits high selectivity to a target hydrocarbon. Therefore, the catalyst of the present invention is useful in a fixed-bed reactor for Fischer-Tropsch synthesis for producing hydrocarbons from synthetic gas.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: April 21, 2015
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Kyoung Su Ha, Joo Young Cheon, Yun Jo Lee, Seung-Chan Baek, Geun Jae Kwak, Seon Ju Park, Ki Won Jun
  • Publication number: 20150018438
    Abstract: The present invention relates to: a catalyst activation method for Fischer-Tropsch synthesis; a catalyst regeneration method for Fischer-Tropsch synthesis; and a method for producing a liquid or solid hydrocarbon by using the Fischer-Tropsch synthesis reaction. The temperatures required for a metal carbide producing and activating reaction is markedly lower than existing catalyst activation temperatures, and the catalyst can be activated under conditions that are the same as Fischer-Tropsch synthesis reaction conditions, and thus there is no need for separate reduction equipment in the reactor, and a Fischer-Tropsch synthesis catalyst which has been used for a long time can be regenerated within the reactor without the catalyst being isolated or extracted from the reactor.
    Type: Application
    Filed: March 7, 2013
    Publication date: January 15, 2015
    Inventors: Kyoung Su Ha, Geun Jae Kwak, Jae Hoon Jung, Joo Young Cheon, Min Hee Woo, Yun Jo Lee, Ki Won Jun