Patents Assigned to Heesung Catalysts Corporation
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Patent number: 9675949Abstract: 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: GrantFiled: April 30, 2014Date of Patent: June 13, 2017Assignee: HEESUNG CATALYSTS CORPORATIONInventors: Sang-Yun Han, Seung Chul Na, Hyun-sik Han
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Publication number: 20170051649Abstract: 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: ApplicationFiled: April 8, 2015Publication date: February 23, 2017Applicant: HEESUNG CATALYSTS CORPORATIONInventors: Hyun-sik HAN, Seung Chul NA, Eun-seok KIM, Joon-Woo KIM
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Patent number: 9527032Abstract: 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: GrantFiled: September 23, 2015Date of Patent: December 27, 2016Assignees: Hyundai Motor Company, Heesung Catalysts CorporationInventors: Sung Mu Choi, Jung Min Seo, Hyun Sik Han, Eun Seok Kim, Jeong Bae Lee
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Patent number: 9358504Abstract: 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: GrantFiled: August 10, 2015Date of Patent: June 7, 2016Assignees: Hyundai Motor Company, Heesung Catalysts CorporationInventors: Sung Mu Choi, Jung Min Seo, Hyun Sik Han, Eun Seok Kim, Jeong Bae Lee
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Patent number: 9321033Abstract: The present invention relates to an improvement in a process for the thermal fixation of a catalytically active component onto an alumina support and, more specifically, to an improvement in a process for the thermal fixation of a catalytically active component onto an alumina support for preparing a thermally stable catalyst for treating exhaust gas from an internal combustion engine, by means of thermally stable dispersion and fixation of the catalytically active component(s) for treating exhaust gas from an internal combustion engine, onto a surface or an internal space of the alumina support.Type: GrantFiled: February 4, 2013Date of Patent: April 26, 2016Assignee: Heesung Catalysts CorporationInventors: Hyun-sik Han, Seung Chul Na, Sang Yun Han
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Patent number: 9321008Abstract: The present invention relates to a device for discharging exhaust gas from a diesel engine by using hydrogen gas, which includes an ammonolysis module. More specifically, the present invention relates to a device for purifying exhaust gas of a diesel engine, wherein the device for discharging exhaust gas from a diesel engine comprises a DOC-DPF-LNT module formed in the downstream of diesel engine in a serial mode, further includes an ammonolysis module; the device for discharging exhaust gas from a diesel engine comprises a DOC-DPF-HC-SCR module formed in the downstream of diesel engine in a serial mode, further includes an ammonolysis module; and the device comprises an LNT-DPF module and an ammonolysis module.Type: GrantFiled: April 20, 2011Date of Patent: April 26, 2016Assignee: Heesung Catalysts CorporationInventors: Hyun Sik Han, Eun Seok Kim, Jae Woo Kim
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Patent number: 9302256Abstract: Described is a selective catalytic reduction catalyst comprising an iron-promoted 8-ring small pore molecular sieve. Systems and methods for using these iron-promoted 8-ring small molecular sieves as catalysts in a variety of processes such as abating pollutants in exhaust gases and conversion processes are also described.Type: GrantFiled: November 10, 2014Date of Patent: April 5, 2016Assignees: BASF Corporation, N.E. Chemcat Corporation, Heesung Catalysts CorporationInventors: Jaya L. Mohanan, Patrick Burk, Michael Breen, Barbara Slawski, Makoto Nagata, Yasuyuki Banno, Eunseok Kim
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Patent number: 9242238Abstract: Described are compositions and catalytic articles comprising a copper-promoted 8-ring small pore molecular sieve and an iron-promoted 8-ring small pore molecular sieve. The catalytic articles are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant.Type: GrantFiled: October 17, 2013Date of Patent: January 26, 2016Assignees: BASF CORPORATION, N.E. CHEMCAT CORPORATION, HEESUNG CATALYSTS CORPORATIONInventors: Jaya L. Mohanan, Patrick Burk, Michael J. Breen, Barbara Slawski, Makoto Nagata, Yasuyuki Banno, Eunseok Kim
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Patent number: 9155999Abstract: 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: GrantFiled: October 4, 2012Date of Patent: October 13, 2015Assignees: Hyundai Motor Company, Heesung Catalysts CorporationInventors: Sung Mu Choi, Jung Min Seo, Hyun Sik Han, Eun Seok Kim, Jeong Bae Lee
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Patent number: 9108155Abstract: 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: GrantFiled: December 15, 2011Date of Patent: August 18, 2015Assignees: Hyundai Motor Company, Heesung Catalysts CorporationInventors: Sung Mu Choi, Jung Min Seo, Hyun Sik Han, Eun Seok Kim, Jeong Bae Lee
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Patent number: 9011807Abstract: Described is a selective catalytic reduction catalyst comprising an iron-promoted 8-ring small pore molecular sieve. Systems and methods for using these iron-promoted 8-ring small molecular sieves as catalysts in a variety of processes such as abating pollutants in exhaust gases and conversion processes are also described.Type: GrantFiled: October 17, 2013Date of Patent: April 21, 2015Assignees: BASF Corporation, N. E. Chemcat Corporation, Heesung Catalysts CorporationInventors: Jaya L. Mohanan, Patrick Burk, Michael J. Breen, Barbara Slawski, Makoto Nagata, Yasuyuki Banno, Eunseok Kim
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Patent number: 8961914Abstract: Described is a selective catalytic reduction catalyst comprising an 8-ring small pore molecular sieve promoted with copper and an alkaline earth component. The catalyst is effective to catalyze the reduction of nitrogen oxides (NOx) in the presence of a reductant. A method for selectively reducing nitrogen oxides is also described.Type: GrantFiled: October 17, 2013Date of Patent: February 24, 2015Assignees: Basf Corporation, N.E. Chemcat Corporation, Heesung Catalysts CorporationInventors: Jaya L. Mohanan, Patrick Burk, Makato Nagata, Yasuyuki Banno, Eunseok Kim
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Publication number: 20150051068Abstract: The present invention relates to an improvement in a process for the thermal fixation of a catalytically active component onto an alumina support and, more specifically, to an improvement in a process for the thermal fixation of a catalytically active component onto an alumina support for preparing a thermally stable catalyst for treating exhaust gas from an internal combustion engine, by means of thermally stable dispersion and fixation of the catalytically active component(s) for treating exhaust gas from an internal combustion engine, onto a surface or an internal space of the alumina support.Type: ApplicationFiled: February 4, 2013Publication date: February 19, 2015Applicant: HEESUNG CATALYSTS CORPORATIONInventors: Hyun-sik Han, Seung Chul Na, Sang Yun Han
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Publication number: 20140363578Abstract: 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: ApplicationFiled: September 29, 2011Publication date: December 11, 2014Applicant: HEESUNG CATALYSTS CORPORATIONInventors: Hyun Sik Han, Seung Chul Na, Sang Yun Han
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Publication number: 20140349840Abstract: Disclosed herein is an ammonia oxidation catalyst for converting nitrogen oxides generated from a mobile source or fixed source into harmless nitrogen using ammonia as a reductant and preventing the formation of nitrogen oxides due to the oxidation of ammonia. The ammonia oxidation catalyst includes selective catalytic reductive zeolite sequentially impregnated with platinum and copper.Type: ApplicationFiled: May 2, 2014Publication date: November 27, 2014Applicant: HEESUNG CATALYSTS CORPORATIONInventors: Hyun Sik Han, Eun Seok Kim
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Patent number: 8668893Abstract: Disclosed is a catalyst composition for reducing NOx through two steps including reacting NOx with H2 thus producing ammonia which is then reacted with NOx, instead of direct NOx reduction by H2, and a method of reducing NOx using the catalyst composition.Type: GrantFiled: December 21, 2012Date of Patent: March 11, 2014Assignee: Heesung Catalysts CorporationInventors: Hyun-Sik Han, Eun-Seok Kim, Gon Seo, Se-Min Park, Yun-Je Lee
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Patent number: 8658560Abstract: The present invention relates to a hydrogenation catalyst for nitro-aromatic compounds, especially nitrobenzene and a method for preparing the same. Particularly, the present invention relates to a hydrogenation catalyst for nitrobenzene, which contains palladium and zinc on a carrier, and is prepared by a process comprising steps of: fixing a zinc component on a carrier; and fixing a palladium component on the carrier on which the zinc component is fixed. Further, it is applicable for a corresponding process for preparing aromatic amino compounds by way of a reaction for hydrogenating nitro-aromatic compounds, and demonstrates improved selectivity, reactivity and stability.Type: GrantFiled: October 15, 2012Date of Patent: February 25, 2014Assignee: Heesung Catalysts CorporationInventors: Hyun Sik Han, Young San Yoo, Jin Won Kim, Kwang Hyun Bak
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Publication number: 20130156669Abstract: Disclosed is a catalyst composition for reducing NOx through two steps including reacting NOx with H2 thus producing ammonia which is then reacted with NOx, instead of direct NOx reduction by H2, and a method of reducing NOx using the catalyst composition.Type: ApplicationFiled: December 21, 2012Publication date: June 20, 2013Applicant: HEESUNG CATALYSTS CORPORATIONInventor: Heesung Catalysts Corporation
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Publication number: 20130115141Abstract: The present invention relates to a device for discharging exhaust gas from a diesel engine by using hydrogen gas, which includes an ammonolysis module. More specifically, the present invention relates to a device for purifying exhaust gas of a diesel engine, wherein the device for discharging exhaust gas from a diesel engine comprises a DOC-DPF-LNT module formed in the downstream of diesel engine in a serial mode, further includes an ammonolysis module; the device for discharging exhaust gas from a diesel engine comprises a DOC-DPF-HC-SCR module formed in the downstream of diesel engine in a serial mode, further includes an ammonolysis module; and the device comprises an LNT-DPF module and an ammonolysis module.Type: ApplicationFiled: April 20, 2011Publication date: May 9, 2013Applicant: HEESUNG CATALYSTS CORPORATIONInventors: Hyun Sik Han, Eun Seok Kim, Jae Woo Kim
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Publication number: 20130089472Abstract: 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: ApplicationFiled: October 4, 2012Publication date: April 11, 2013Applicants: HEESUNG CATALYSTS CORPORATION, HYUNDAI MOTOR COMPANYInventors: HYUNDAI MOTOR COMPANY, HEESUNG CATALYSTS CORPORATION