Patents by Inventor Iljeong Heo

Iljeong Heo 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: 20210106979
    Abstract: A manufacturing method thereof, and the catalyst for removing the nitrogen oxide includes a powdery gamma alumina support on which at least one selected from a group of titanium (Ti), lanthanum (La), or zirconium (Zr) is supported, wherein the support may be further supported with iridium (Ir) and ruthenium (Ru).
    Type: Application
    Filed: March 24, 2020
    Publication date: April 15, 2021
    Inventors: Dalyoung YOON, Chang Hwan KIM, Tae Sun CHANG, Iljeong HEO, Sung Hun LEE, Young Woo YOU
  • Patent number: 10758893
    Abstract: The present invention provides a solid-phase catalyst for decomposing hydrogen peroxide comprising a permanganate salt and a manganese (II) salt. The solid-phase catalyst stays a solid state in the form of nanoparticles at the time of hydrogen peroxide decomposition, and thus can be recovered for reuse and also has an excellent decomposition rate. In the method for producing a solid-phase catalyst for decomposing hydrogen peroxide according to the present invention, a solid-phase catalyst is produced from a solution containing a permanganate salt, a manganese (II) salt, and an organic acid, so that the produced solid-phase catalyst is precipitated as a solid component even after a catalytic reaction, and thus is reusable and environmentally friendly, and cost reduction can be achieved through the simplification of a catalyst production technique.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: September 1, 2020
    Assignees: Korea Research Insitute of Chemical Technology, NF CO., Ltd.
    Inventors: Iljeong Heo, Jeong Kwon Suh, Beom Sik Kim, Tae Sun Chang, Yun Ho Jeong, Ji Hoon Park, Soo Min Kim, Ji Na Choi
  • Patent number: 10648387
    Abstract: An exhaust gas post processing apparatus of a gasoline vehicle may include a housing mounted on the exhaust pipe to receive the exhaust gas discharged from the engine and to exhaust the exhaust gas passed through rearward thereof, a front end honeycomb catalyst unit embedded in the housing to primarily purify the exhaust gas introduced into the housing through a front end portion of the housing, and a rear end honeycomb catalyst unit embedded in the housing to secondarily purify the exhaust gas via the front end honeycomb catalyst unit before flowing out to a rear end portion of the housing, wherein the front end honeycomb catalyst unit includes a powder type catalyst in which an iridium-ruthenium alloy is supported on an aluminum oxide support powder, and the rear end honeycomb catalyst unit includes three-way catalyst powder which is configured to remove carbon monoxide, nitrogen oxides, and hydrocarbons simultaneously.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: May 12, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Korea Research Institute of Chemical Technology
    Inventors: Dalyoung Yoon, Chang Hwan Kim, Iljeong Heo, Young Woo You, Jin Hee Lee
  • Patent number: 10589256
    Abstract: The present invention relates to a Ru—Pd bimetallic catalyst for use in hydrogenation of a compound, and more particularly to a catalyst prepared by loading both ruthenium and palladium on a g-C3N4 support and to a selective hydrogenation process of a pyridine group in a reaction system containing both a pyridine group and a benzene group using the catalyst.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: March 17, 2020
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Ji Hoon Park, Kwan Yong Jeong, Soo Min Kim, Tae Sun Chang, Iljeong Heo
  • Publication number: 20200002180
    Abstract: It is an object of the present invention to provide an electrochemical system for producing ammonia from nitrogen oxides which can perform the reaction at room temperature under normal pressure with high ammonia selectivity, and a preparation method thereof. To achieve the object above, the present invention provides an electrochemical system for producing ammonia from nitrogen oxides characteristically comprising a cathode electrode where the reduction reaction of a complex of nitrogen oxide and a metal complex compound occurs, an anode electrode, a reference electrode, an electrolyte including a metal complex compound, and a nitrogen oxide supply unit.
    Type: Application
    Filed: June 21, 2019
    Publication date: January 2, 2020
    Inventors: Dong Yeon Kim, Young Kook Kwon, Iljeong Heo, Beom Sik Kim
  • Publication number: 20190076826
    Abstract: The present invention relates to a Ru—Pd bimetallic catalyst for use in hydrogenation of a compound, and more particularly to a catalyst prepared by loading both ruthenium and palladium on a g-C3N4 support and to a selective hydrogenation process of a pyridine group in a reaction system containing both a pyridine group and a benzene group using the catalyst.
    Type: Application
    Filed: August 22, 2018
    Publication date: March 14, 2019
    Inventors: Ji Hoon PARK, Kwan Yong JEONG, Soo Min KIM, Tae Sun CHANG, Iljeong HEO
  • Publication number: 20190009253
    Abstract: The present invention provides a solid-phase catalyst for decomposing hydrogen peroxide comprising a permanganate salt and a manganese (II) salt. The solid-phase catalyst stays a solid state in the form of nanoparticles at the time of hydrogen peroxide decomposition, and thus can be recovered for reuse and also has an excellent decomposition rate. In the method for producing a solid-phase catalyst for decomposing hydrogen peroxide according to the present invention, a solid-phase catalyst is produced from a solution containing a permanganate salt, a manganese (II) salt, and an organic acid, so that the produced solid-phase catalyst is precipitated as a solid component even after a catalytic reaction, and thus is reusable and environmentally friendly, and cost reduction can be achieved through the simplification of a catalyst production technique.
    Type: Application
    Filed: January 13, 2017
    Publication date: January 10, 2019
    Inventors: Iljeong HEO, Jeong Kwon SUH, Beom Sik KIM, Tae Sun CHANG, Yun Ho JEONG, Ji Hoon PARK, Soo Min KIM, Ji Na CHOI
  • Patent number: 8980783
    Abstract: Disclosed is a catalyst for converting nitrogen oxide into ammonia, which is capable of converting nitrogen oxide into ammonia under fuel lean exhaust gas conditions of more than theoretical air-fuel ratio (A/F=14.7), and a method for manufacturing the same. The catalyst according to the present invention comprises a metal oxide support impregnated with a precious metal, such that conversion of nitrogen oxide into ammonia under fuel lean exhaust gas conditions of more than theoretical air-fuel ratio (A/F=14.7) is possible.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: March 17, 2015
    Assignees: Hyundai Motor Company, Postech Academy-Industry Foundation
    Inventors: Jin Woo Choung, In-Sik Nam, Dal Young Yoon, Iljeong Heo
  • Publication number: 20130303364
    Abstract: Disclosed is a catalyst for converting nitrogen oxide into ammonia, which is capable of converting nitrogen oxide into ammonia under fuel lean exhaust gas conditions of more than theoretical air-fuel ratio (A/F=14.7), and a method for manufacturing the same. The catalyst according to the present invention comprises a metal oxide support impregnated with a precious metal, such that conversion of nitrogen oxide into ammonia under fuel lean exhaust gas conditions of more than theoretical air-fuel ratio (A/F=14.7) is possible.
    Type: Application
    Filed: August 23, 2012
    Publication date: November 14, 2013
    Applicants: POSTECH ACADEMY-INDUSTRY FOUNDATION, HYUNDAI MOTOR COMPANY
    Inventors: Jin Woo Choung, In-Sik Nam, Dal Young Yoon, Iljeong Heo
  • Patent number: 8479493
    Abstract: The oxidation of carbon monoxide (CO) and hydrocarbons (HC) in an oxygen-containing gas stream, such as the exhaust stream from a diesel engine, or other lean-burn engine, may be catalyzed using a combination of mixed oxide particles of cerium, zirconium and copper, and discrete particles of an alumina-supported platinum group metal catalyst. The catalyzed oxidation of CO and HC by this combination of oxidation catalyst particles is effective at temperatures below 300° C.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: July 9, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Chang H Kim, Iljeong Heo, Se H. Oh, Wei Li, Michelle H Schmid
  • Publication number: 20120291420
    Abstract: The oxidation of carbon monoxide (CO) and hydrocarbons (HC) in an oxygen-containing gas stream, such as the exhaust stream from a diesel engine, or other lean-burn engine, may be catalyzed using a combination of mixed oxide particles of cerium, zirconium and copper, and discrete particles of an alumina-supported platinum group metal catalyst. The catalyzed oxidation of CO and HC by this combination of oxidation catalyst particles is effective at temperatures below 300° C.
    Type: Application
    Filed: May 19, 2011
    Publication date: November 22, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chang H. Kim, Iljeong Heo, Se H. Oh, Wei Li, Michelle H. Schmid