Patents by Inventor Uen Do Lee
Uen Do Lee 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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Patent number: 11359173Abstract: Disclosed is a mass-cultivation system for microalgae, including a reactor that contains a cultivation liquid in the interior thereof, wherein the liquid includes functional particles. According to the mass-cultivation system for microalgae according to the present invention, because various functions that are necessary for cultivation of microalgae may be uniformly distributed in a cultivation liquid by allowing functional particles having various functions to flow in the cultivation liquid, a suitable environment may be created based on the cultivation of a large amount of microalgae and the growth of microalgae so that a high efficiency cultivation system may be realized while the problems of mass-cultivation of an existing cultivation system may be solved.Type: GrantFiled: June 17, 2020Date of Patent: June 14, 2022Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGYInventors: Uen Do Lee, Won Yang, Byung Ryeul Bang, Su Ji Jeon
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Patent number: 11333349Abstract: Disclosed herein are a fluid sand falling type circulating fluidized bed boiler with a plurality of risers for preventing erosion and corrosion of water tubes and increasing combustion efficiency, and a method of operating the same. The fluid sand falling type circulating fluidized bed boiler with a plurality of risers includes a boiler section into which fuel and oxidizer are injected, a riser section connected to the boiler section so that the fuel and fluid sand supplied from the boiler section are introduced from the bottom of the riser section and flow up, and a relay section provided on the boiler section to supply the fluid sand having passed through the riser section to the boiler section, wherein the fuel is injected from the top of the boiler section and burned while flowing down therein.Type: GrantFiled: May 2, 2019Date of Patent: May 17, 2022Assignees: Korea Institute of Industrial Technology, Korea Institute of Energy Research, Korea Institute of Machinery & MaterialsInventors: Uen Do Lee, Byeong Ryeol Bang, Young Doo Kim, Soo Hwa Jeong, Chang Won Yang, Jae Goo Lee, Tae Young Mun, Myung Won Seo, Ji Hong Moon, Hyun Seol Park, Joon Mok Shim, Young Cheol Park, Do Won Shun, Jong Ho Moon, Dal Hee Bae, Sung Ho Jo, Yun Tae Hwang, Sang In Keel, Jin Han Yun, ChungKyu Lee, Pil Woo Heo
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Publication number: 20200339924Abstract: Disclosed is a mass-cultivation system for microalgae, including a reactor that contains a cultivation liquid in the interior thereof, wherein the liquid includes functional particles. According to the mass-cultivation system for microalgae according to the present invention, because various functions that are necessary for cultivation of microalgae may be uniformly distributed in a cultivation liquid by allowing functional particles having various functions to flow in the cultivation liquid, a suitable environment may be created based on the cultivation of a large amount of microalgae and the growth of microalgae so that a high efficiency cultivation system may be realized while the problems of mass-cultivation of an existing cultivation system may be solved.Type: ApplicationFiled: June 17, 2020Publication date: October 29, 2020Inventors: Uen Do LEE, Won YANG, Byung Ryeul BANG, Su Ji JEON
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Publication number: 20200251644Abstract: The present invention relates to a thermoelectric generator comprising a liquid metal heat exchanger, the thermoelectric generator comprising: a thermoelectric element; a power generation unit electrically connected to the thermoelectric element; a liquid metal heat exchange unit, which is connected to the high-temperature side of the thermoelectric element and has a liquid metal flowing therein; and a heat source unit connected to the liquid metal heat exchange unit so as to exchange heat therewith.Type: ApplicationFiled: March 27, 2020Publication date: August 6, 2020Inventors: Uen Do LEE, Won YANG, Byung Ryeul BANG, Ji Hong MOON
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Patent number: 10689729Abstract: A reduction device using a liquid metal, which can improve the oxidation reaction of a reducing agent for reducing a material to be reduced using a liquid metal, while simultaneously effectively controlling the same. The reduction device according to the present invention comprises: a storage unit in which the liquid metal is supplied and stored; a reducing agent positioned in the storage unit; a reduction unit positioned on a side of the storage unit, which receives a material to be reduced and enables fluid communication with the storage unit; and a liquid metal storage unit. According to the present invention, a reducing agent, which has strong reducing ability, is sublimated using a liquid metal, thereby further improving the reduction capability, and the same is also controlled precisely, thereby removing restrictions on use resulting from the explosive reaction of the reducing agent and guaranteeing efficient operation.Type: GrantFiled: December 18, 2015Date of Patent: June 23, 2020Assignee: Korea Institute of Industrial TechnologyInventors: Uen Do Lee, Won Yang, Byung Ryeul Bang, Soo Hwa Jeong, Ji Hong Moon
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Patent number: 10605448Abstract: The boiler using a liquid metal as a working medium according to the present invention is comprises: a combustion furnace, in which the working medium is supplied and heated; a heat exchange part, which is connected to the combustion furnace and to which the working medium heated in the combustion furnace is supplied; a heat medium injection part, which is positioned in the heat exchange part; and a supply part, which is connected to the heat exchange part and supplies the heat medium to the heat medium injection part. In the heat exchange part, the heat exchange between the heat medium supplied to the heat medium injection part and the heated working medium is performed. The heat medium reaches high temperature and high pressure states at a threshold point or higher by means of the heat exchange. In addition, the working medium is a liquid metal.Type: GrantFiled: December 18, 2015Date of Patent: March 31, 2020Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGYInventors: Uen Do Lee, Won Yang, Byung Ryeul Bang, Soo Hwa Jeong, Ji Hong Moon
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Publication number: 20200025366Abstract: Disclosed herein are a fluid sand falling type circulating fluidized bed boiler with a plurality of risers for preventing erosion and corrosion of water tubes and increasing combustion efficiency, and a method of operating the same. The fluid sand falling type circulating fluidized bed boiler with a plurality of risers includes a boiler section into which fuel and oxidizer are injected, a riser section connected to the boiler section so that the fuel and fluid sand supplied from the boiler section are introduced from the bottom of the riser section and flow up, and a relay section provided on the boiler section to supply the fluid sand having passed through the riser section to the boiler section, wherein the fuel is injected from the top of the boiler section and burned while flowing down therein.Type: ApplicationFiled: May 2, 2019Publication date: January 23, 2020Applicants: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY, KOREA INSTITUTE OF ENERGY RESEARCH, KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Uen Do LEE, Byeong Ryeol BANG, Young Doo KIM, Soo Hwa JEONG, Chang Won YANG, Jae Goo LEE, Tae Young MUN, Myung Won SEO, Ji Hong MOON, Hyun Seol PARK, Joon Mok SHIM, Young Cheol PARK, Do Won SHUN, Jong Ho MOON, Dal Hee BAE, Sung Ho JO, Yun Tae HWANG, Sang In KEEL, Jin Han YUN, ChungKyu LEE, Pil Woo HEO
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Patent number: 10533143Abstract: The present invention relates to a combustor-independent fluidized bed indirect gasification system for technology for obtaining high quality synthetic gas through effective indirect gasification of low quality fuels, such as biomass/waste/coal, having various properties, and provides a combustor-independent fluidized bed indirect gasification system comprising: a pre-processor having a sorter 500; a gasifier 300 to which a first fuel sorted in the pre-processor is supplied; a combustor 100 to which a second fuel sorted in the pre-processor is supplied; and a riser 200 connecting the gasifier 300 and the combustor 100 and having functions of increasing the temperature of a bed material and transferring the bed material therein.Type: GrantFiled: February 10, 2015Date of Patent: January 14, 2020Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGYInventors: Uen Do Lee, Byung Ryeul Bang, Chang Won Yang, Jong Su Kim, Tae U Yu
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Patent number: 10352559Abstract: The present invention relates to a gasification apparatus and a gasification method, the apparatus comprising: a reactor for gasifying fuel; a fuel supply part for supplying fuel to the reactor; and a dispersion plate for spraying fuel, so as to enhance reactivity in the reactor, and aerosolizing moisture within fuel, thereby uniformly supplying fuel to the reactor, wherein the dispersion plate, in a state of being charged by receiving power, is configured to electrostatically spray fuel and a gasification agent, thereby producing a micro droplet, and atomizing the same. Accordingly, it is possible to aerosolize fuel using a boiling phenomenon or an electrostatic spray phenomenon, and uniformly supply fuel to the reactor. Also, it is possible to obtain the effect of increasing gasification reaction efficiency by preheating and reforming fuel and moisture through mid-low temperature oxidation prior to supplying the same the reactor.Type: GrantFiled: September 14, 2015Date of Patent: July 16, 2019Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGYInventors: Uen Do Lee, Won Yang, Young Doo Kim, Tae Young Chae, Chang Won Yang
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Patent number: 10240786Abstract: A pure oxygen direct combustion system using a liquid metal according to the present invention comprises: a reactor for receiving a liquid metal; a heat exchanger, connected to the bottom of the reactor, for exchanging heat for the liquid metal; a circulation pump, connected to the heat exchanger, for circulating the incoming liquid metal; a nozzle, connected to the circulation pump and disposed on the reactor; a reduction unit, connected to the circulation pump, for performing a reduction for the oxidized liquid metal; and a separation unit, connected to the reactor and the reduction unit, wherein the particles of the liquid metal injected from the nozzle are subjected to sensible heat from the gas generated from the reactor, heat-exchanged by the heat exchanger and regenerated by the reduction unit, and then supplied back to the reactor.Type: GrantFiled: June 30, 2014Date of Patent: March 26, 2019Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGYInventors: Uen Do Lee, Won Yang, Ji Hong Moon
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Publication number: 20170350586Abstract: The boiler using a liquid metal as a working medium according to the present invention is comprises: a combustion furnace, in which the working medium is supplied and heated; a heat exchange part, which is connected to the combustion furnace and to which the working medium heated in the combustion furnace is supplied; a heat medium injection part, which is positioned in the heat exchange part; and a supply part, which is connected to the heat exchange part and supplies the heat medium to the heat medium injection part. In the heat exchange part, the heat exchange between the heat medium supplied to the heat medium injection part and the heated working medium is performed. The heat medium reaches high temperature and high pressure states at a threshold point or higher by means of the heat exchange. In addition, the working medium is a liquid metal.Type: ApplicationFiled: December 18, 2015Publication date: December 7, 2017Inventors: Uen Do LEE, Won YANG, Byung Ryeul BANG, Soo Hwa JEONG, Ji Hong MOON
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Publication number: 20170349969Abstract: The present invention relates to a reduction device using a liquid metal, which can improve the oxidation reaction of a reducing agent for reducing a material to be reduced using a liquid metal, while simultaneously effectively controlling the same. The reduction device according to the present invention comprises: a storage unit in which the liquid metal is supplied and stored; a reducing agent positioned in the storage unit; a reduction unit positioned on a side of the storage unit, which receives a material to be reduced and enables fluid communication with the storage unit; and a liquid metal storage unit. According to the present invention, a reducing agent, which has strong reducing ability, is sublimated using a liquid metal, thereby further improving the reduction capability, and the same is also controlled precisely, thereby removing restrictions on use resulting from the explosive reaction of the reducing agent, and guaranteeing efficient operation.Type: ApplicationFiled: December 18, 2015Publication date: December 7, 2017Inventors: Uen Do LEE, Won YANG, Byung Ryeul BANG, Soo Hwa JEONG, Ji Hong MOON
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Publication number: 20170292699Abstract: The present invention relates to a gasification apparatus and a gasification method, the apparatus comprising: a reactor for gasifying fuel; a fuel supply part for supplying fuel to the reactor; and a dispersion plate for spraying fuel, so as to enhance reactivity in the reactor, and aerosolizing moisture within fuel, thereby uniformly supplying fuel to the reactor, wherein the dispersion plate, in a state of being charged by receiving power, is configured to electrostatically spray fuel and a gasification agent, thereby producing a micro droplet, and atomizing the same. Accordingly, it is possible to aerosolize fuel using a boiling phenomenon or an electrostatic spray phenomenon, and uniformly supply fuel to the reactor. Also, it is possible to obtain the effect of increasing gasification reaction efficiency by preheating and reforming fuel and moisture through mid-low temperature oxidation prior to supplying the same the reactor.Type: ApplicationFiled: September 14, 2015Publication date: October 12, 2017Inventors: Uen Do LEE, Won YANG, Young Doo KIM, Tae Young CHAE, Chang Won YANG
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Publication number: 20170175016Abstract: The present invention relates to a combustor-independent fluidized bed indirect gasification system for technology for obtaining high quality synthetic gas through effective indirect gasification of low quality fuels, such as biomass/waste/coal, having various properties, and provides a combustor-independent fluidized bed indirect gasification system comprising: a pre-processor having a sorter 500; a gasifier 300 to which a first fuel sorted in the pre-processor is supplied; a combustor 100 to which a second fuel sorted in the pre-processor is supplied; and a riser 200 connecting the gasifier 300 and the combustor 100 and having functions of increasing the temperature of a bed material and transferring the bed material therein.Type: ApplicationFiled: February 10, 2015Publication date: June 22, 2017Inventors: Uen Do LEE, Byung Ryeul BANG, Chang Won YANG, Jong Su KIM, Tae U YU
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Publication number: 20170137763Abstract: Disclosed is a mass-cultivation system for microalgae, including a reactor that contains a cultivation liquid in the interior thereof, wherein the liquid includes functional particles. According to the mass-cultivation system for microalgae according to the present invention, because various functions that are necessary for cultivation of microalgae may be uniformly distributed in a cultivation liquid by allowing functional particles having various functions to flow in the cultivation liquid, a suitable environment may be created based on the cultivation of a large amount of microalgae and the growth of microalgae so that a high efficiency cultivation system may be realized while the problems of mass-cultivation of an existing cultivation system may be solved.Type: ApplicationFiled: February 10, 2015Publication date: May 18, 2017Inventors: Uen Do LEE, Won YANG, Byung Ryeul BANG, Su Ji JEON
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Publication number: 20170141284Abstract: The present invention relates to a thermoelectric generator comprising a liquid metal heat exchanger, the thermoelectric generator comprising: a thermoelectric element; a power generation unit electrically connected to the thermoelectric element; a liquid metal heat exchange unit, which is connected to the high-temperature side of the thermoelectric element and has a liquid metal flowing therein; and a heat source unit connected to the liquid metal heat exchange unit so as to exchange heat therewith.Type: ApplicationFiled: June 15, 2015Publication date: May 18, 2017Inventors: Uen Do LEE, Won YANG, Byung Ryeul BANG, Ji Hong MOON
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Publication number: 20170003022Abstract: A pure oxygen direct combustion system using a liquid metal according to the present invention comprises: a reactor for receiving a liquid metal; a heat exchanger, connected to the bottom of the reactor, for exchanging heat for the liquid metal; a circulation pump, connected to the heat exchanger, for circulating the incoming liquid metal; a nozzle, connected to the circulation pump and disposed on the reactor; a reduction unit, connected to the circulation pump, for performing a reduction for the oxidized liquid metal; and a separation unit, connected to the reactor and the reduction unit, wherein the particles of the liquid metal injected from the nozzle are subjected to sensible heat from the gas generated from the reactor, heat-exchanged by the heat exchanger and regenerated by the reduction unit, and then supplied back to the reactor.Type: ApplicationFiled: June 30, 2014Publication date: January 5, 2017Inventors: Uen Do LEE, Won YANG, Ji Hong MOON
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Patent number: 9446376Abstract: An embodiment of the present invention is directed to a pyrolysis device including a reactor in which an injected raw material and a melted liquid metal are present together, a circulating pump connected to the reactor, a buffer tank disposed on an upper portion of the reactor and receiving the liquid metal from the circulating pump, a nozzle coupled with the buffer tank and jetting the liquid metal within the buffer tank into the reactor, a separating apparatus separating pyrolyzed char and slag, and a combustion furnace connected to the reactor to combust the fuel supplied from the reactor and supply heat to the reactor, thereby reacting the liquid metal sprays jetted from the nozzle with gases generated in the reactor to purify the gases.Type: GrantFiled: November 9, 2012Date of Patent: September 20, 2016Assignee: Korea Institute of Industrial TechnologyInventors: Uen Do Lee, Won Yang, Dong Ho Park, Ji Hong Moon, Chang Won Yang
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Patent number: 9416327Abstract: The present invention provides a hybrid gasification system which simultaneously has the advantages of an entrained-flow gasifier using pulverized fuel and a fluidized-bed gasifier utilized for gasifying fuel with relatively various properties. The present intention provides a hybrid gasification system employing a structure in which a second reaction chamber operated at a temperature of 700 to 900 is surrounded by a first reaction chamber operated at temperature, thereby obtaining an insulation effect, performing additional heat exchange, and minimizing a heat loss. Furthermore, the present invention provides a hybrid gasification system having a structure in which unreacted substances and tar within synthetic gas generated from a first reaction chamber reacts within a second reaction chamber, thereby increasing the entire gasification efficiency.Type: GrantFiled: December 21, 2012Date of Patent: August 16, 2016Assignee: Korea Institute of Industrial TechnologyInventors: Uen Do Lee, Wong Yang, Dong Ho Park, Jeong Woo Lee, Young Doo Kim, Ji Hong Moon, Kwang Soo Kim, Chang Won Yang, Beom Jong Kim
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Patent number: 9156017Abstract: The present invention relates to a pyrolysis device using a liquid metal including: a hollow reactor in which the liquid metal is received; a circulating pump connected to the reactor; a buffer tank disposed on an upper portion of the reactor and receiving the liquid metal from the circulating pump; a nozzle coupled with the buffet tank and jetting the liquid metal within the buffer tank into the reactor; and an air supply source supplying air to the liquid metal within the reactor, wherein char generated from fuel injected into the reactor is combusted by reacting with air introduced into a lower portion” of the reactor through the air supply source, and liquid metal sprays jetted from the nozzle react with gases generated in the reactor to purify the gases.Type: GrantFiled: November 9, 2012Date of Patent: October 13, 2015Assignee: Korea Institute of Industrial TechnologyInventors: Uen Do Lee, Won Yang, Dong Ho Park, Ji Hong Moon, Jeong Woo Lee, Young Doo Kim, Chang Won Yang, Kwang Soo Kim