Patents by Inventor Hyun-sik Han

Hyun-sik Han 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: 10889503
    Abstract: The present invention relates to zeolite containing Cu2+ (?) and Cu2+ (?) having different NO adsorption capacities loaded at a specific ratio, wherein the zeolite is chabazite (CHA)-type zeolite, particularly chabazite (CHA)-type zeolite loaded with divalent copper ions in which the NO adsorption area ratio of Cu2+ (?)/Cu2+ (?) after exposure to NO (nitrogen oxide) for 180 sec is 80% or more. In addition, the present invention relates to a method of preparing zeolite that is ion-exchanged in a slurry state and to a catalyst including the specified chabazite (CHA)-type zeolite.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: January 12, 2021
    Assignee: HEESUNG CATALYSTS CORPORATION
    Inventors: Mi-young Kim, Jin-won Kim, Yong Sul Kim, Eun-seok Kim, Seung Chul Na, Hyun-sik Han
  • Patent number: 10751701
    Abstract: The present invention provides a catalyst composition for inhibiting the inactivation of a catalyst for purification of compressed natural gas combustion system exhaust gas on which a noble metal component comprising platinum and palladium is supported. An oxidation catalyst, for a compressed natural gas vehicle or static combustion system exhaust gas, in which a first alumina impregnated with platinum, a second alumina impregnated with palladium, and a ceria component are supported on a ceramic support, has a barium cocatalyst supported on the first alumina, thereby greatly inhibiting inactivation of a CNG lean burn engine catalyst.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: August 25, 2020
    Assignee: HEESUNG CATALYSTS CORPORATION
    Inventors: Hyun-sik Han, Eun-seok Kim, Mi-Young Kim, Jun hong Jeon
  • Publication number: 20200122125
    Abstract: The present invention relates to a catalyst used in a dehydrogenation reaction of a linear hydrocarbon gas in a range of C3 to C4, and provides a dehydrogenation catalyst which is deposited on a carrier obtained by changing the phase of platinum, an auxiliary metal and an alkali metal, wherein the platinum and the auxiliary metal are present as a single complex within a certain thickness from the outer edges of the catalyst in an alloy form.
    Type: Application
    Filed: January 11, 2018
    Publication date: April 23, 2020
    Inventors: Hyun-sik Han, Young-san Yoo, Ho-dong Kim, Hyun A Choi
  • Publication number: 20190322537
    Abstract: The present invention relates to zeolite containing Cu2+ (?) and Cu2+ (?) having different NO adsorption capacities loaded at a specific ratio, wherein the zeolite is chabazite (CHA)-type zeolite, particularly chabazite (CHA)-type zeolite loaded with divalent copper ions in which the NO adsorption area ratio of Cu2+ (?)/Cu2+ (?) after exposure to NO (nitrogen oxide) for 180 sec is 80% or more. In addition, the present invention relates to a method of preparing zeolite that is ion-exchanged in a slurry state and to a catalyst including the specified chabazite (CHA)-type zeolite.
    Type: Application
    Filed: November 29, 2017
    Publication date: October 24, 2019
    Inventors: Mi-young Kim, Jin-won Kim, Yong Sul Kim, Eun-seok Kim, Seung Chul Na, Hyun-sik Han
  • Patent number: 10434499
    Abstract: The present invention relates to diesel oxidation catalyst (DOC) and diesel particulate filter (DPF) catalyst compositions, used for a smoke reduction apparatus, for inhibiting white smoke generated from a diesel engine and, more specifically, to a DOC, enabling minimization of sulphate adsorption, a DPF catalyst, enabling a sulphate desorption delay, and a smoke reduction apparatus having the DOC and DPF catalyst assembled therein. The diesel particulate filter catalyst composition, which is applied to the DPF, comprises oxide components selected from oxide components comprising manganese oxide and silver oxide.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: October 8, 2019
    Assignee: HEESUNG CATALYSTS CORPORATION
    Inventors: Hyun-sik Han, Eun-seok Kim, Jae-Uk Han, Hyoung-Mun Cho
  • Publication number: 20190184374
    Abstract: The present invention relates to a support structure of a solid catalyst for preparing a linear alkyl aromatic compound, particularly linear alkylbenzene (LAB), and to a method of preparing an alkyl aromatic compound by alkylating an aromatic compound with an olefin using a solid alkylation catalyst, and of regenerating the deactivated solid alkylation catalyst. The present invention provides an integrated method of preparing an alkyl aromatic compound by alkylating an aromatic compound with an olefin using a filter structure as a solid catalyst carrier for alkylating an aromatic compound with an olefin, and of regenerating the deactivated solid alkylation catalyst, thereby realizing simpler and less expensive processing than conventional processes.
    Type: Application
    Filed: August 3, 2017
    Publication date: June 20, 2019
    Inventors: Ho-dong Kim, Young-san Yoo, Hyun-sik Han
  • Publication number: 20190143314
    Abstract: Disclosed herein is a method of coating a catalyst support, in which a monolithic catalyst support provided therein with a plurality of longitudinally formed channels is quantitatively coated with catalyst slurry applied to post-treatment of exhaust gas, including the steps of: introducing catalyst slurry into a quantitative container whose bottom is vertically moved; moving a catalyst support to the top of a container such that the bottom of the catalyst support and top of the container are horizontally disposed each other; sealing the bottom of the catalyst support and the top of the container from the outside; moving the bottom of the container upward; and applying a vacuum to the channels of the catalyst support.
    Type: Application
    Filed: January 11, 2019
    Publication date: May 16, 2019
    Inventors: Hyun Sik Han, Seung Chul Na, Sang Yun Han
  • Patent number: 10220380
    Abstract: Disclosed herein is a method of coating a catalyst support, in which a monolithic catalyst support provided therein with a plurality of longitudinally formed channels is quantitatively coated with catalyst slurry applied to post-treatment of exhaust gas, including the steps of: introducing catalyst slurry into a quantitative container whose bottom is vertically moved; moving a catalyst support to the top of a container such that the bottom of the catalyst support and top of the container are horizontally disposed each other; sealing the bottom of the catalyst support and the top of the container from the outside; moving the bottom of the container upward; and applying a vacuum to the channels of the catalyst support.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: March 5, 2019
    Assignee: Heesung Catalysts Corporation
    Inventors: Hyun Sik Han, Seung Chul Na, Sang Yun Han
  • Patent number: 10213769
    Abstract: Disclosed are a catalyst for dehydrogenating a paraffinic hydrocarbon and a method of preparing the same, wherein the catalyst is configured such that a sponge-type alumina support having 3D meso/macro pores is directly impregnated with an active metal, thus decreasing the diffusion resistance of a material, realizing structural stability, and maximizing the distribution of the active metal in the support, thereby significantly increasing olefin conversion and selectivity. In this catalyst, the sponge-type alumina support is directly impregnated with the active metal to thus form an active metal layer inside the support having 3D meso/macro pores that are interconnected to each other.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: February 26, 2019
    Assignee: HEESUNG CATALYSTS CORPORATION
    Inventors: Hyun-sik Han, Young-San Yoo, Ho-Dong Kim
  • Publication number: 20190001304
    Abstract: The present invention provides a catalyst composition for inhibiting the inactivation of a catalyst for purification of compressed natural gas combustion system exhaust gas on which a noble metal component comprising platinum and palladium is supported. An oxidation catalyst, for a compressed natural gas vehicle or static combustion system exhaust gas, in which a first alumina impregnated with platinum, a second alumina impregnated with palladium, and a ceria component are supported on a ceramic support, has a barium cocatalyst supported on the first alumina, thereby greatly inhibiting inactivation of a CNG lean burn engine catalyst.
    Type: Application
    Filed: December 16, 2016
    Publication date: January 3, 2019
    Applicant: Heesung Catalysts Corporation
    Inventors: Hyun-sik HAN, Eun-seok KIM, Mi-Young KIM, Jun hong JEON
  • Publication number: 20180361359
    Abstract: The present invention relates to diesel oxidation catalyst (DOC) and diesel particulate filter (DPF) catalyst compositions, used for a smoke reduction apparatus, for inhibiting white smoke generated from a diesel engine and, more specifically, to a DOC, enabling minimization of sulphate adsorption, a DPF catalyst, enabling a sulphate desorption delay, and a smoke reduction apparatus having the DOC and DPF catalyst assembled therein. The diesel particulate filter catalyst composition, which is applied to the DPF, comprises oxide components selected from oxide components comprising manganese oxide and silver oxide.
    Type: Application
    Filed: October 31, 2016
    Publication date: December 20, 2018
    Inventors: Hyun-sik Han, Eun-seok Kim, Jae-Uk Han, Hyoung-Mun Cho
  • Publication number: 20180361361
    Abstract: The present invention relates to a method for preparing a supported catalyst comprising a crystalline Pd—Rh alloy, the method comprising the steps of: (i) producing an impregnated support by means of mixing an inorganic support, a Pd precursor solution and an Rh precursor solution; and (ii) thermally treating the impregnated support in a reducing gas atmosphere.
    Type: Application
    Filed: December 1, 2016
    Publication date: December 20, 2018
    Inventors: Hyun-sik Han, Seung Chul Na, Jin-Woo Song, Narayana Rao Komateedi, Kwi-Yeon Lee
  • Publication number: 20180311645
    Abstract: The present invention relates to a method for preparing a dehydrogenation catalyst for a straight chain-type light hydrocarbon using a stabilized active metal composite, in other words, to a dehydrogenating catalyst for C3 to C4 straight chain hydrocarbons, and more specifically, to a technique for preparing a catalyst in which most of metal components contained in the catalyst are distributed evenly in a support in the form of an alloy rather than in the form of each separate metal, thereby exhibiting a high conversion rate and selectivity when used in dehydrogenation.
    Type: Application
    Filed: October 31, 2016
    Publication date: November 1, 2018
    Inventors: Hyun-sik Han, Young-san Yoo, Ho-Dong Kim, Hyun-Woo Lee
  • Publication number: 20180311644
    Abstract: The present invention relates to a catalyst having improved selectivity and reactivity and applied to preparing olefins by dehydrogenating C9 to C13 paraffin, and particularly to a technique for preparing a catalyst, which uses a heat-treated support having controlled pores, and most of metal components contained therein are distributed evenly in a support in the form of an alloy rather than in the form of each separate metal, thereby exhibiting high a conversion rate and selectivity when used in dehydrogenation.
    Type: Application
    Filed: October 31, 2016
    Publication date: November 1, 2018
    Inventors: Hyun-sik Han, Young-san Yoo, Ho-Dong Kim, Dong Kun Kang
  • Patent number: 9931615
    Abstract: Disclosed is a catalyst composition for inhibiting the deactivation of a catalyst for purifying exhaust gas from a compressed natural gas combustion system, which contains platinum and palladium as precious metal components. Specifically, a catalyst for purifying exhaust gas from a compressed natural gas vehicle or a static combustion system is configured such that a ceramic substrate is impregnated with palladium-impregnated first alumina, platinum-impregnated second alumina, and a ceria component, wherein the first alumina is further impregnated with a cocatalyst selected from the group consisting of barium, nickel, lanthanum, samarium, and yttrium, thus significantly inhibiting the deactivation of the CNG lean burn engine catalyst.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: April 3, 2018
    Assignee: HEESUNG CATALYSTS CORPORATION
    Inventors: Hyun-sik Han, Seung Chul Na, Eun-seok Kim, Joon-Woo Kim
  • Patent number: 9675949
    Abstract: The present invention provides a quantitative catalyst supply device that supplies a predetermined amount of catalyst slurry through an injection port formed through a container bottom. The quantitative catalyst supply device includes: an extendible supply pipe connected to a hopper and filled with catalyst slurry; a head connected to the supply pipe and supplying catalyst slurry to the injection port at the container bottom; a cylinder connected to a side of the supply pipe and supplying a predetermined amount of catalyst slurry through the head; and valve units disposed in an upper portion and a lower portion of the supply pipe spaced from the cylinder and opened or closed by operation of the cylinder.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: June 13, 2017
    Assignee: HEESUNG CATALYSTS CORPORATION
    Inventors: Sang-Yun Han, Seung Chul Na, Hyun-sik Han
  • Publication number: 20170051649
    Abstract: This invention relates to a method of regenerating a deactivated catalyst, which carries precious metal components including platinum and palladium and which is used to purify a gas exhausted from a compressed natural gas lean-burn engine. The method includes creating a reduction atmosphere over the catalyst. The creating the reduction atmosphere over the catalyst includes controlling an air-fuel ratio or directly injecting CNG fuel into the catalyst.
    Type: Application
    Filed: April 8, 2015
    Publication date: February 23, 2017
    Applicant: HEESUNG CATALYSTS CORPORATION
    Inventors: Hyun-sik HAN, Seung Chul NA, Eun-seok KIM, Joon-Woo KIM
  • Publication number: 20170007987
    Abstract: Disclosed is a catalyst composition for inhibiting the deactivation of a catalyst for purifying exhaust gas from a compressed natural gas combustion system, which contains platinum and palladium as precious metal components. Specifically, a catalyst for purifying exhaust gas from a compressed natural gas vehicle or a static combustion system is configured such that a ceramic substrate is impregnated with palladium-impregnated first alumina, platinum-impregnated second alumina, and a ceria component, wherein the first alumina is further impregnated with a cocatalyst selected from the group consisting of barium, nickel, lanthanum, samarium, and yttrium, thus significantly inhibiting the deactivation of the CNG lean burn engine catalyst.
    Type: Application
    Filed: December 16, 2014
    Publication date: January 12, 2017
    Inventors: Hyun-sik HAN, Seung Chul NA, Eun-seok KIM, Joon-Woo KIM
  • Publication number: 20170001174
    Abstract: Disclosed are a catalyst for dehydrogenating a paraffinic hydrocarbon and a method of preparing the same, wherein the catalyst is configured such that a sponge-type alumina support having 3D meso/macro pores is directly impregnated with an active metal, thus decreasing the diffusion resistance of a material, realizing structural stability, and maximizing the distribution of the active metal in the support, thereby significantly increasing olefin conversion and selectivity. In this catalyst, the sponge-type alumina support is directly impregnated with the active metal to thus form an active metal layer inside the support having 3D meso/macro pores that are interconnected to each other.
    Type: Application
    Filed: December 3, 2014
    Publication date: January 5, 2017
    Inventors: Hyun-sik Han, Young-San Yoo, Ho-Dong Kim
  • Patent number: 9527032
    Abstract: The present invention provides a non-PGM catalyst for burning carbon soot without using a noble metal, the non-PGM catalyst comprising: a cerium-praseodymium complex oxide and an iron oxide, the cerium-praseodymium complex oxide impregnated with silver (Ag). The cerium-praseodymium complex oxide illustratively consists of 60 to 95 wt % of cerium oxide and 5 to 40 wt % of praseodymium oxide, and silver (Ag) impregnated in the complex oxide is 1.5 to 3.0 parts by weight of the total weight of the complex oxide. The iron oxide may be an oxide in a form of particles separate from the cerium-praseodymium complex oxide in which silver is impregnated, and may be 0.5 to 2 parts by weight of the total weight of the cerium praseodymium complex oxide.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: December 27, 2016
    Assignees: Hyundai Motor Company, Heesung Catalysts Corporation
    Inventors: Sung Mu Choi, Jung Min Seo, Hyun Sik Han, Eun Seok Kim, Jeong Bae Lee