Patents by Inventor Eun-Duck Park
Eun-Duck Park 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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Publication number: 20210387166Abstract: A catalyst with a core-shell structure for methane oxidation, a method of preparing the catalyst, and a method of methane oxidation using the catalyst are disclosed. The catalyst includes a core structure consisting of a nano-support and core nanoparticles; and a shell coating layer coated on the core structure in which the core nanoparticles have a particle diameter smaller than that of the nano-support and are coated on the nano-support to form a core structure. The catalyst has excellent thermal stability during methane oxidation reaction at high temperature and an effect of increasing methane conversion and formaldehyde selectivity.Type: ApplicationFiled: July 26, 2019Publication date: December 16, 2021Applicants: UNIST (Ulsan National Institute of Science and Technology), AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Kwang Jin AN, Eun Duck PARK, Eui Seob YANG
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Patent number: 8633132Abstract: A hydrocarbon reforming catalyst, a method of preparing the hydrocarbon reforming catalyst, and a fuel cell including the hydrocarbon reforming catalyst. The hydrocarbon reforming catalyst includes an oxide support as well as a nickel active catalyst layer, a metal oxide, an alkali metal supported by the oxide support.Type: GrantFiled: December 18, 2009Date of Patent: January 21, 2014Assignees: Samsung Electronics Co., Ltd., Samsung SDI Co., Ltd.Inventors: Hyun-chul Lee, Doo-hwan Lee, Eun-duck Park, Kang-hee Lee, Yun-ha Kim, Jae-hyun Park
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Patent number: 8298984Abstract: Provided are a non-pyrophoric water gas shift reaction catalyst including: an oxide carrier composed of zirconium oxide (ZrO2) and at least one selected from yttrium oxide (Y2O3) and cerium oxide (CeO2); and platinum (Pt) and cerium (Ce) that are supported on the oxide carrier, a method of preparing the same, and a fuel processor including the non-pyrophoric water gas shift reaction catalyst.Type: GrantFiled: May 13, 2008Date of Patent: October 30, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun-chul Lee, Doo-hwan Lee, Kang-hee Lee, Eun-duck Park, Yun-ha Kim
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Patent number: 8101306Abstract: A fuel cell system and an operating method of the same. The fuel cell system includes a carbon monoxide adsorbing device that is disposed at an exit of a shift reactor and removes carbon monoxide which is not completely removed in the shift reactor. Therefore, a start-up time of the fuel cell system is remarkably reduced without poisoning catalysts of electrodes of the fuel cell. An overall volume of the fuel cell system can be reduced since the carbon monoxide adsorbing device is only operating during the start-up, and thus the fuel cell system can be economically manufactured and operated. Additionally, the carbon monoxide adsorbent can be regenerated, thereby increasing economic efficiency of the fuel cell system.Type: GrantFiled: August 1, 2006Date of Patent: January 24, 2012Assignee: Samsung SDI Co., Ltd.Inventors: Soonho Kim, Doohwan Lee, Hyun-chul Lee, Eun-duck Park
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Patent number: 8101542Abstract: Provided are a catalyst for oxidizing carbon monoxide and a method of preparing the same. The catalyst for oxidizing carbon monoxide includes platinum and a transition metal which exists in a bimetallic phase, and the bimetallic phase of the platinum and the transition metal is supported by a support including a vacancy of oxygen. The catalyst for oxidizing carbon monoxide shows much higher activity than a conventional catalyst for oxidizing carbon monoxide even at a relatively low temperature.Type: GrantFiled: September 18, 2007Date of Patent: January 24, 2012Assignee: Samsung SDI Co., Ltd.Inventors: Hyun-chul Lee, Soon-ho Kim, Doo-hwan Lee, Eun-duck Park, Eun-yong Ko
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Patent number: 8067332Abstract: A methanation catalyst, a carbon monoxide removing system, a fuel processor, and a fuel cell including the same, and more particularly a non-supported methanation catalyst including the catalytically active non-precious metal particles and the metal oxide particles, and a carbon monoxide removing system, a fuel processor, and a fuel cell including the same. The methanation catalyst has high selectivity for the methanation of carbon monoxide instead of the methanation of carbon dioxide and the reverse water gas shift reaction of carbon dioxide, which are side reactions of the methanation of carbon monoxide, maintains high concentration of generated hydrogen as small amounts of hydrogen and carbon dioxide are consumed, and effectively removes carbon monoxide at low operating temperatures of 200° C. or less.Type: GrantFiled: May 3, 2007Date of Patent: November 29, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Hyun-chul Lee, Soon-ho Kim, Kang-hee Lee, Doo-hwan Lee, Eun-duck Park, Eun-yong Ko
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Patent number: 8057577Abstract: A desulfurizer for fuel gas for a fuel cell includes: a first adsorption tank including an adsorber having selective adsorption capacity for a thiophene-based compound and a second adsorption tank including an adsorber having selective adsorption capacity for a mercaptan-based compound. The desulfurizer uses separate adsorbers having selective adsorption capacity for a thiophene-based compound and a mercaptan-based compound, in multiple stages to perform a more efficient and economical desulfurizing of a fuel gas to remove various sulfur compounds, especially thiophene-based compounds and mercaptan-based compounds compared to a desulfurizer using a single adsorber.Type: GrantFiled: January 23, 2007Date of Patent: November 15, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Doo-hwan Lee, Soon-ho Kim, Hyun-chul Lee, Eun-duck Park, Eun-yong Ko, Chan-ho Pak, Woo-sung Jeon
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Patent number: 7850937Abstract: A catalytic system for CO removal includes a gold (Au) catalyst and a co-catalyst in contact with an aqueous phase, and a fuel cell system using the same. The catalytic system is relatively very simple compared to a common CO removal system, and can highly efficiently remove CO at low temperature without side reaction. In addition, water contacted in the catalytic system can act as a buffer for the rise and fall of temperature, and thus, can cope with an accidental temperature change. Further, the catalytic system shows a low operation temperature, and thus, can be operated over a broad operation range considering the activity and/or selectivity of the gold catalyst, etc.Type: GrantFiled: January 18, 2006Date of Patent: December 14, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Hyun-chul Lee, Soon-ho Kim, Yulia Potapova, Eun-duck Park, Eun-yong Ko
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Publication number: 20100167919Abstract: A hydrocarbon reforming catalyst includes an oxide support as well as a nickel active catalyst layer, a metal oxide, an alkali metal supported by the oxide support.Type: ApplicationFiled: December 18, 2009Publication date: July 1, 2010Applicants: Samsung Electronics Co., Ltd., Samsung SDI Co.Inventors: Hyun-chul LEE, Doo-hwan Lee, Eun-duck Park, Kang-hee Lee, Yun-ha Kim, Jae-hyun Park
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Publication number: 20100159297Abstract: A hydrocarbon reforming catalyst, a method of preparing the hydrocarbon reforming catalyst, and a fuel cell including the hydrocarbon reforming catalyst. The hydrocarbon reforming catalyst includes a nickel active catalyst layer loaded on an oxide carrier, and a metal oxide.Type: ApplicationFiled: October 13, 2009Publication date: June 24, 2010Applicants: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.Inventors: Doo-hwan LEE, Hyun-chul Lee, Eun-duck Park, Kang-hee Lee, Yun-ha Kim, Jae-hyun Park
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Publication number: 20100113263Abstract: A non-pyrophoric shift reaction catalyst includes an oxide carrier impregnated with platinum (Pt) and cerium (Ce). The non-pyrophoric shift reaction catalyst may be prepared by uniformly mixing a platinum precursor, a cerium precursor, and an oxide carrier in a dispersing medium to obtain a mixture; drying the mixture; and calcining the dried mixture. The shift reaction catalyst having a non-pyrophoric property has an excellent reaction activity even at a low temperature and can efficiently remove carbon monoxide in fuel.Type: ApplicationFiled: January 13, 2010Publication date: May 6, 2010Applicant: Samsung SDI Co., Ltd.Inventors: Hyun-chul Lee, Soon-ho Kim, Doo-hwan Lee, Yulie Potapova, Ok-young Lim, Eun-duck Park, Eun-yong Ko
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Patent number: 7625429Abstract: A zeolite adsorbent for desulfurization and a method of preparing the same. More particularly, a zeolite adsorbent for desulfurization in which the relative crystallinity of Y zeolite that is ion exchanged with Ag is 45% to 98%, and a method of preparing the same. The zeolite adsorbent for desulfurization has excellent crystallinity over the known zeolite adsorbent for desulfurization, and thus has better performance of adsorbing sulfur compounds though it contains less Ag. Accordingly, when the sulfur compounds of a fuel gas are removed by employing the zeolite adsorbent for desulfurization, a desulfurizing device that is bettereven with less cost can be constructed.Type: GrantFiled: January 23, 2006Date of Patent: December 1, 2009Assignee: Samsung SDI Co., Ltd.Inventors: Soon-ho Kim, Hyun-chul Lee, Yulia Potapova, Eun-duck Park, Eun-yong Ko
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Publication number: 20090170695Abstract: Provided are a non-pyrophoric water gas shift reaction catalyst including: an oxide carrier composed of zirconium oxide (ZrO2) and at least one selected from yttrium oxide (Y2O3) and cerium oxide (CeO2); and platinum (Pt) and cerium (Ce) that are supported on the oxide carrier, a method of preparing the same, and a fuel processor including the non-pyrophoric water gas shift reaction catalyst.Type: ApplicationFiled: May 13, 2008Publication date: July 2, 2009Applicant: Samsung Electronics Co., Ltd.Inventors: Hyun-chul LEE, Doo-hwan Lee, Kang-hee Lee, Eun-duck Park, Yun-ha Kim
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Patent number: 7339021Abstract: The present invention relates to a method for preparing polycarbonate resin, and more particularly to a method for effectively preparing polycarbonate resin having a large molecular weight in a short time under a melt polymerization condition using a catalyst system comprising phosphoranylidene ammonium salts, which is stable and maintains superior reactivity during melt polymerization and solid state polymerization.Type: GrantFiled: April 18, 2003Date of Patent: March 4, 2008Assignee: LG Chem, Ltd.Inventors: Eun-Duck Park, Boo-Gon Woo, Mi-Jeung Hong, Jong-Hun Kim
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Publication number: 20080008926Abstract: Provided are a catalyst for oxidizing carbon monoxide and a method of preparing the same. The catalyst for oxidizing carbon monoxide includes platinum and a transition metal which exists in a bimetallic phase, and the bimetallic phase of the platinum and the transition metal is supported by a support including a vacancy of oxygen. The catalyst for oxidizing carbon monoxide shows much higher activity than a conventional catalyst for oxidizing carbon monoxide even at a relatively low temperature.Type: ApplicationFiled: September 18, 2007Publication date: January 10, 2008Applicant: Samsung SDI Co., Ltd.Inventors: Hyun-chul Lee, Soon-ho Kim, Doo-hwan Lee, Eun-duck Park, Eun-yong Ko
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Publication number: 20070259975Abstract: A methanation catalyst, a carbon monoxide removing system, a fuel processor, and a fuel cell including the same, and more particularly a non-supported methanation catalyst including the catalytically active non-precious metal particles and the metal oxide particles, and a carbon monoxide removing system, a fuel processor, and a fuel cell including the same. The methanation catalyst has high selectivity for the methanation of carbon monoxide instead of the methanation of carbon dioxide and the reverse water gas shift reaction of carbon dioxide, which are side reactions of the methanation of carbon monoxide, maintains high concentration of generated hydrogen as small amounts of hydrogen and carbon dioxide are consumed, and effectively removes carbon monoxide at low operating temperatures of 200° C. or less.Type: ApplicationFiled: May 3, 2007Publication date: November 8, 2007Applicant: Samsung SDI Co., LtdInventors: Hyun-chul Lee, Soon-ho Kim, Kang-hee Lee, Doo-hwan Lee, Eun-duck Park, Eun-yong Ko
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Publication number: 20070196258Abstract: A desulfurizer for fuel gas for a fuel cell includes: a first adsorption tank including an adsorber having selective adsorption capacity for a thiophene-based compound and a second adsorption tank including an adsorber having selective adsorption capacity for a mercaptan-based compound. The desulfurizer uses separate adsorbers having selective adsorption capacity for a thiophene-based compound and a mercaptan-based compound, in multiple stages to perform a more efficient and economical desulfurizing of a fuel gas to remove various sulfur compounds, especially thiophene-based compounds and mercaptan-based compounds compared to a desulfurizer using a single adsorber.Type: ApplicationFiled: January 23, 2007Publication date: August 23, 2007Applicant: Samsung SDI Co., LtdInventors: Doo-hwan Lee, Soon-ho Kim, Hyun-chul Lee, Eun-duck Park, Eun-yong Ko, Chan-ho Pak, Woo-sung Jeon
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Publication number: 20070180767Abstract: A non-pyrophoric shift reaction catalyst includes an oxide carrier impregnated with platinum (Pt) and cerium (Ce). The non-pyrophoric shift reaction catalyst may be prepared by uniformly mixing a platinum precursor, a cerium precursor, and an oxide carrier in a dispersing medium to obtain a mixture; drying the mixture; and calcining the dried mixture. The shift reaction catalyst having a non-pyrophoric property has an excellent reaction activity even at a low temperature and can efficiently remove carbon monoxide in fuel.Type: ApplicationFiled: November 29, 2006Publication date: August 9, 2007Applicant: Samsung SDI Co., Ltd.Inventors: Hyun-chul Lee, Soon-ho Kim, Doo-hwan Lee, Yulia Potapova, Ok-young Lim, Eun-duck Park, Eun-yong Ko
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Publication number: 20070179053Abstract: A composite oxide support containing ceria and an oxide of M1(M1 being Al, Zr or Ti) such that the atomic ratio of cerium to M1 is in the range of 1:4 to 1:40; a method of preparing the composite oxide support; a catalyst for low temperature water gas shift reaction, having a transition metal active component supported on the composite oxide support by an incipient wetness method; and a method of preparing the catalyst for low temperature water gas shift reaction are provided. The catalyst for low temperature water gas shift reaction prepared by using the composite oxide support can effectively remove carbon monoxide from the hydrogen produced from the low temperature water gas shift reaction at a lower temperature with a higher carbon monoxide conversion rate, compared with conventional catalysts for water gas shift reaction.Type: ApplicationFiled: December 6, 2006Publication date: August 2, 2007Applicant: Samsung SDI Co., Ltd.Inventors: Hyun-chul Lee, Soon-ho Kim, Doo-hwan Lee, Yulia Potapova, Ok-young Lim, Eun-duck Park, Eun-yong Ko
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Publication number: 20070092768Abstract: A catalyst that oxidizes carbon monoxide includes a bimetal consisting of platinum and a transition metal in a bimetallic phase that is loaded on ?-alumina support. The catalyst is manufactured by uniformly mixing a platinum precursor, a transition metal precursor, and ?-alumina (?-Al2O3) in a dispersion medium to provide a mixture; drying the mixture; calcining the dried mixture; and reducing the calcined dried mixture. Since the catalyst that oxidizes carbon monoxide has high reaction activity even at low temperature and excellent reaction selectivity, and a methanation reaction and reoxidization do not occur, and the catalyst can effectively eliminate carbon monoxide in the fuel.Type: ApplicationFiled: October 19, 2006Publication date: April 26, 2007Applicant: Samsung SDI Co., Ltd.Inventors: Hyun-chul Lee, Soon-ho Kim, Doo-hwan Lee, Eun-duck Park, Eun-yong Ko