Patents Assigned to Korea Gas Corporation
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Publication number: 20070205049Abstract: Disclosed is a scaffold installed within a large structure such as a pressure vessel or a tank of a ship, and an insulation system construction method using the same. The scaffold for use in performing desired work within a large structure includes a supporting structure installed adjacent to both side surfaces and a top surface of the large structure, and a carrying unit installed movable along the supporting structure to allow materials to be carried or to provide a working space for a worker thereon, wherein the supporting structure is installed to be movable along a wall surface of the large structure.Type: ApplicationFiled: March 5, 2007Publication date: September 6, 2007Applicant: KOREA GAS CORPORATIONInventors: Young Myung Yang, Seong Ho Hong, Ihn Soo Yoon, Young Chul Yang, Heung Seok Seo, Ji Hun Kim, Byoung Taek Oh, Young Kyun Kim
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Patent number: 7232553Abstract: Disclosed is a plate type steam reformer comprising a plate type burner capable of heating a broad area of a reactor as a heat source, positioned on a bottom of the reformer; a reforming reactor requiring a relatively high temperature, positioned over the burner; a high temperature water gas shift reactor requiring a relatively moderate temperature, positioned over the reforming reactor; a low temperature water gas shift reactor requiring a relatively low temperature, positioned over the high temperature water gas shift reactor; and dividing plates positioned between the above three reactors and between the reforming reactor and the burner such that combustion exhaust gas produced in the burner supplies heat to the above reactors.Type: GrantFiled: May 2, 2002Date of Patent: June 19, 2007Assignees: Korea Gas Corporation, Korea Research Institute of Chemical TechnologyInventors: Young-Sam Oh, Young-Soon Baek, Taek-Yong Song, Sang-Eon Park, Ki-Won Jun, Ri-Sang Choi
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Patent number: 7214251Abstract: The compact steam reformer of the present invention integrally comprises a housing; a reforming reactor having an upper mixing compartment for mixing natural gas and steam and a lower compartment for accommodating a catalyst bed; a natural gas feeding coiled pipe through which natural gas is introduced while being heated; a steam generating coiled pipe in which pure water is converted to steam by the exhaust; a metal fiber burner for heating the reforming reactor; a high-temperature converter for primarily removing carbon monoxide from a synthetic gas; a low-temperature converter for secondarily reducing the carbon monoxide level of the synthetic gas; and a heat exchanger, provided between the high-temperature converter and the low-temperature converter, for cooling the gas effluent from the high-temperature converter.Type: GrantFiled: April 23, 2002Date of Patent: May 8, 2007Assignees: Korea Gas Corporation, Kyungdong City Gas Co. Ltd., Korea Research Institute of Chemical TechnologyInventors: Young-Sam Oh, Young-Soon Baek, Won-Ihl Cho, Taek-Yong Song, Jeong-Hwan Lee, Sang-Eon Park, Ki-Won Jun, Ri-Sang Choi
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Patent number: 7204195Abstract: Disclosed is a liquid container adapted to store liquefied natural gas (LNG). The LNG storage container include a sealing wall directly contacting liquid contained in the tank and a structural wall, which is an exterior wall or inner structure integrated with the exterior wall. The container further includes a plurality of connectors mechanically connecting the sealing wall and the structural wall and an intermediate wall structure positioned between the structural wall and the interior wall. The intermediate wall structure is configured to move relative to at least one of the interior wall and the structural wall.Type: GrantFiled: August 10, 2006Date of Patent: April 17, 2007Assignee: Korea Gas CorporationInventors: Young Myung Yang, Seong Ho Hong, Ihn Soo Yoon, Young Chul Yang, Heung Seok Seo, Ji Hun Kim, Byoung Taek Oh, Young Kyun Kim
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Publication number: 20070063713Abstract: The present invention relates to a pipeline examination apparatus for Direct Current Voltage Gradient (DCVG) and Closed Interval Potential Survey (CIPS) methods. The pipeline examination apparatus of the present invention detects and analyzes at least one electrode signal while supplying an anticorrosive current to a buried pipeline by switching on and off the anticorrosive current at predetermined intervals. The pipeline examination apparatus includes a signal detection unit and a measurement unit. The signal detection unit detects the electrode signal including a DCVG electrode signal and/or a CIPS electrode signal. The measurement unit receives the electrode signal from the signal detection unit and analyzes the electrode signal. The measurement unit includes a measurement method selection unit, a control unit, a storage unit, an analysis unit and a display unit.Type: ApplicationFiled: June 30, 2003Publication date: March 22, 2007Applicant: Korea Gas CorporationInventors: Young-Tai Kho, Jae-Young Jeon, Kyeong-Wan Park, Yong-Bum Cho, Seon-Yeob Li, Young-Geun Kim
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Patent number: 7171916Abstract: Disclosed is a liquid container adapted to store liquefied natural gas (LNG). The LNG storage container include a sealing wall directly contacting liquid contained in the tank and a structural wall, which is an exterior wall or inner structure integrated with the exterior wall. The container further includes a plurality of connectors mechanically connecting the sealing wall and the structural wall and an intermediate wall structure positioned between the structural wall and the interior wall.Type: GrantFiled: April 28, 2005Date of Patent: February 6, 2007Assignee: Korea Gas CorporationInventors: Young Myung Yang, Seong Ho Hong, Ihn Soo Yoon, Young Chul Yang, Heung Seok Seo, Ji Hun Kim, Byoung Taek Oh, Young Kyun Kim
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Patent number: 6808652Abstract: A modified ⊖-Al2O3-supported nickel reforming catalyst and its use for producing synthesis gas from natural gas, more specifically to a nickel reforming catalyst expressed by the following formula 1, having improved coke resistance, high-temperature catalysis stability and catalytic activity, which is prepared by coating nickel or mixture of nickel and cocatalyst (M1-M2-Ni) on a Al2O3 support modified with metal (M3-M4-ZrO2/⊖-Al2O3), and its use for producing synthesis gas from natural gas through steam reforming, oxygen reforming or steam-oxygen reforming, M1-M2-Ni/M3-M4-ZrO2/⊖-Al2O3 (1) wherein M1 is an alkali metal; each of M2 and M3 is an alkaline earth metal; and M4 is a IIIB element or a lanthanide.Type: GrantFiled: January 5, 2004Date of Patent: October 26, 2004Assignees: Korea Research Institute of Chemical Technology, Korea Gas Corporation, Kyoungdong Citygas Co., Ltd.Inventors: Sang-Eon Park, Ki-Won Jun, Hyun-Seog Roh, Seung-Chan Baek, Young-Sam Oh, Young-Soon Baek, Ri-Sang Choi, Taek-Yong Song
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Publication number: 20040142817Abstract: The present invention relates to a modified &thgr;-Al2O3-supported nickel reforming catalyst and its use for producing synthesis gas from natural gas, more specifically to a nickel reforming catalyst expressed by the following formula 1, having improved coke resistance, high-temperature catalysis stability and catalytic activity, which is prepared by coating nickel or mixture of nickel and cocatalyst (M1-M2-Ni) on a &thgr;-Al2O3 support modified with metal (M3-M4-ZrO2/&thgr;-Al2O3), and its use for producing synthesis gas from natural gas through steam reforming, oxygen reforming, or steam-oxygen reforming,Type: ApplicationFiled: January 5, 2004Publication date: July 22, 2004Applicants: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, KOREA GAS CORPORATION, KYUNGDONG CITYGAS CO., LTD.Inventors: Sang-Eon Park, Ki-Won Jun, Hyun-Seog Roh, Seung-Chan Baek, Young-Sam Oh, Young-Soon Baek, Ri-Sang Choi, Taek-Yong Song
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Patent number: 6693060Abstract: A modified &thgr;-Al2O3-supported nickel reforming catalyst and its use for producing synthesis gas from natural gas, more specifically to a nickel reforming catalyst expressed by the following formula 1, having improved coke resistance, high-temperature catalysis stability and catalytic activity, which is prepared by coating nickel or mixture of nickel and cocatalyst (M1—M2—Ni) on a &thgr;-Al2O3 support modified with metal (M3—M4—ZrO2/&thgr;-Al2O3), and its use for producing synthesis gas from natural gas through steam reforming, oxygen reforming or steam-oxygen reforming, M1—M2—Ni/M3—M4—ZrO2/&thgr;-Al2O3 (1) wherein M1 is an alkali metal, each of M2 and M3 is an alkaline earth metal; and M4 is a IIIB element or a lanthanide.Type: GrantFiled: May 13, 2002Date of Patent: February 17, 2004Assignees: Korea Research Institute of Chemical Technology, Korea Gas Corporation, Kyungdong City Gas Co., Ltd.Inventors: Sang-Eon Park, Ki-Won Jun, Hyun-Seog Roh, Seung-Chan Baek, Young-Sam Oh, Young-Soon Baek, Ri-Sang Choi, Taek-Yong Song
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Patent number: 6383451Abstract: The present invention relates to an electric resistance sensor for measuring a corrosion rate, and in particular to an electric resistance sensor for measuring a corrosion rate which can measure a slight corrosion resulting from pitting by using a plurality of conductive thin lines, a fabrication method therefor and a measurement method using the same.Type: GrantFiled: September 9, 1999Date of Patent: May 7, 2002Assignee: Korea Gas CorporationInventors: Young-Geun Kim, Seng-Min Lee, Young-Tai Kho, Hong-Seok Song, Deok-Soo Won
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Patent number: 6059937Abstract: The present invention relates to a sensor for detecting hydrocarbon type gas such as methane gas and propane gas, and process for manufacturing thereof. SiO.sub.2 was deposited in 1 .mu.m by ion beam sputtering with a mixed gas (3:2) of argon and oxygen on a silicon wafer in the process. In case of a propane sensor, platinum electrode is deposited in 600 .ANG. by ion beam sputtering on a tin oxide thin film synthesized by ionized beam of which the oxygen ion energy is 0 to 500 eV by using poly alumina. In case of a methane sensor, heat treatment at 500.degree. C. was performed for 1 hour in the air in order for the thin film to be stable at high operation temperature, while heat treatment was not performed in case of propane sensor. The sensor was manufactured by adding platinum or palladium thereto by argon ion beam sputtering. The thin film type tin oxide sensor according to the present invention exhibited an excellent selectivity of 47.4% even at low temperature of 150.degree. C.Type: GrantFiled: May 28, 1996Date of Patent: May 9, 2000Assignee: Korea Gas CorporationInventors: Seok Keun Koh, Hyung Jin Jung, Seok Kyun Song, Won Kook Choi, Dongsoo Choi, Jin Seok Jeon
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Patent number: 5989990Abstract: The present invention relates to tinoxide thin film, a process for manufacturing thereof comprising the step of depositing tin while providing oxygen or ionized oxygen around a substrate, and relates to a gas detecting sensor prepared by the use of such tinoxide thin film.Type: GrantFiled: February 14, 1996Date of Patent: November 23, 1999Assignee: Korea Gas CorporationInventors: Seok Keun Koh, Hyung Jin Jung, Seok Kyun Song, Won Kook Choi, Dongsoo Choi, Jin Seok Jeon