Patents by Inventor Seong-Pil Kang
Seong-Pil Kang 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: 11406930Abstract: The present invention relates to a method for continuous removal of carbon dioxide, the method comprising the steps of: a) preparing an aqueous solution containing an amine-based compound and an acidic calcium compound; b) bringing a gas containing carbon dioxide to be treated into contact with the aqueous solution to prepare a calcium carbonate precipitate; and c) recovering the calcium carbonate and then adding a basic calcium compound to the residual aqueous solution, wherein after step c), step b) and step c) are repeatedly performed. The removal of carbon dioxide by the method of the present invention has advantages of requiring low energy and being capable of mineralizing and removing carbon dioxide at a fast rate without a separate time for induction.Type: GrantFiled: November 8, 2017Date of Patent: August 9, 2022Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Soon Kwan Jeong, Min Hye Youn, Ki Tae Park, Seong-Pil Kang, Wonhee Lee, Hak Joo Kim, Young Eun Kim, Ji Min Kang, Arti Murnandari
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Patent number: 10988847Abstract: The present invention relates to an apparatus and method of preparing carbonate and/or formate from carbon dioxide.Type: GrantFiled: November 6, 2017Date of Patent: April 27, 2021Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Ki Tae Park, Soon Kwan Jeong, Seong Pil Kang, Hak Joo Kim, Min Hye Youn
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Patent number: 10815577Abstract: The present invention relates to a method and an apparatus of preparing a reduction product of carbon dioxide by electrochemically reducing carbon dioxide.Type: GrantFiled: July 14, 2016Date of Patent: October 27, 2020Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Ki Tae Park, Soon Kwan Jeong, Hak Joo Kim, Seong Pil Kang, Min Hye Youn
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Publication number: 20190270047Abstract: The present invention relates to a method for continuous removal of carbon dioxide, the method comprising the steps of: a) preparing an aqueous solution containing an amine-based compound and an acidic calcium compound; b) bringing a gas containing carbon dioxide to be treated into contact with the aqueous solution to prepare a calcium carbonate precipitate; and c) recovering the calcium carbonate and then adding a basic calcium compound to the residual aqueous solution, wherein after step c), step b) and step c) are repeatedly performed. The removal of carbon dioxide by the method of the present invention has advantages of requiring low energy and being capable of mineralizing and removing carbon dioxide at a fast rate without a separate time for induction.Type: ApplicationFiled: November 8, 2017Publication date: September 5, 2019Inventors: Soon-kwan JEONG, Min Hye YOUN, Ki-tae PARK, Seong-pil KANG, Won Hee LEE, Hak-joo KIM, Young-eun KIM, Ji Min KANG, Arti MURNANDARI
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Patent number: 10202538Abstract: The present invention provides a method for inhibiting structure II (sII) gas hydrate formation which comprises treating (i) a gas hydrate inhibitor and (ii) at least one additive selected from the group consisting of N-hexyl-N-methyl-pyrrolidinium tetrafluoroborate (HMP-BF4), M-hydroxyethyl-N-methyl-pyrrolidinium tetrafluoroborate (HEMP-BF4), N-ethyl-N-methyl-immidazolium tetrafluoroborate (EMIM-BF4) and N-ethyl-N-methyl-pyrrolidinium tetrafluoroborate (EMP-BF4) in water, which is in contact with a gas mixture of forming structure II gas hydrate. The additives according to the present invention can exhibit the same or greater effects of inhibiting the formation of the structure II gas hydrate through an interaction, even when the amount of a gas hydrate inhibitor is reduced.Type: GrantFiled: May 22, 2015Date of Patent: February 12, 2019Inventors: Seong-Pil Kang, Kisub Kim, Jong-Nam Kim
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Publication number: 20180202056Abstract: The present invention relates to a method and an apparatus of preparing a reduction product of carbon dioxide by electrochemically reducing carbon dioxide.Type: ApplicationFiled: July 14, 2016Publication date: July 19, 2018Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Ki Tae PARK, Soon Kwan JEONG, Hak Joo KIM, Seong Pil KANG, Min Hye YOUN
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Publication number: 20180127886Abstract: The present invention relates to an apparatus and method of preparing carbonate and/or formate from carbon dioxide.Type: ApplicationFiled: November 6, 2017Publication date: May 10, 2018Applicant: Korea Institute of Energy ResearchInventors: Ki Tae PARK, Soon Kwan JEONG, Seong Pil KANG, Hak Joo KIM, Min Hye YOUN
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Patent number: 9309172Abstract: The present invention provides a method of separating ethylene or ethane from a mixed gas containing ethylene and ethane using hydroquinone. According to the present invention, hydroquinone selectively forms a clathrate with ethylene, and thus it is possible to separate ethylene with high yield and purity through a single process.Type: GrantFiled: January 22, 2014Date of Patent: April 12, 2016Assignee: Korea Institute of Energy ResearchInventors: Seong-Pil Kang, Jong-Won Lee, Dongwook Lee, Yong Koo Kim
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Patent number: 9228075Abstract: Disclosed herein is a composition for inhibiting a gas hydrate formation, the composition including an ionic liquid compound and polyvinylcaprolactam. The composition can reduce the formation rate of a gas hydrate under the same environment in small quantity, thus remarkably extending the induction time of a gas hydrate formation.Type: GrantFiled: May 3, 2012Date of Patent: January 5, 2016Assignee: Korea Institute of Energy ResearchInventors: Seong-Pil Kang, Dongwook Lee, Howon Ra, Kisub Kim
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Publication number: 20150337196Abstract: The present invention provides a method for inhibiting structure II (sII) gas hydrate formation which comprises treating (i) a gas hydrate inhibitor and (ii) at least one additive selected from the group consisting of N-hexyl-N-methyl-pyrrolidinium tetrafluoroborate (HMP-BF4), M-hydroxyethyl-N-methyl-pyrrolidinium tetrafluoroborate (HEMP-BF4), N-ethyl-N-methyl-immidazolium tetrafluoroborate (EMIM-BF4) and N-ethyl-N-methyl-pyrrolidinium tetrafluoroborate (EMP-BF4) in water, which is in contact with a gas mixture of forming structure II gas hydrate. The additives according to the present invention can exhibit the same or greater effects of inhibiting the formation of the structure II gas hydrate through an interaction, even when the amount of a gas hydrate inhibitor is reduced.Type: ApplicationFiled: May 22, 2015Publication date: November 26, 2015Inventors: Seong-Pil KANG, Kisub KIM, Jong-Nam KIM
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Patent number: 8961656Abstract: The present invention relates to an ionic liquid compound that inhibits a formation of a gas hydrate. The compound of the present invention changes an equilibrium temperature and pressure of a gas hydrate in small quantity into a lower temperature and/or a higher pressure, and simultaneously retards the formation of the gas hydrate under the same environment. Thus, the compound of the present invention is used in oil and natural gas industries to effectively inhibit or delay the formation of the gas hydrate under the condition having a low temperature and a high pressure.Type: GrantFiled: June 27, 2011Date of Patent: February 24, 2015Assignee: Korea Institute of Energy ResearchInventor: Seong-Pil Kang
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Publication number: 20140206920Abstract: The present invention provides a method of separating ethylene or ethane from a mixed gas containing ethylene and ethane using hydroquinone. According to the present invention, hydroquinone selectively forms a clathrate with ethylene, and thus it is possible to separate ethylene with high yield and purity through a single process.Type: ApplicationFiled: January 22, 2014Publication date: July 24, 2014Applicant: Korea Institute of Energy ResearchInventors: Seong-Pil Kang, Jong-Won Lee, Dongwook Lee, Yong Koo Kim
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Publication number: 20130112923Abstract: Disclosed herein is a composition for inhibiting a gas hydrate formation, the composition including an ionic liquid compound and polyvinylcaprolactam. The composition can reduce the formation rate of a gas hydrate under the same environment in small quantity, thus remarkably extending the induction time of a gas hydrate formation.Type: ApplicationFiled: May 3, 2012Publication date: May 9, 2013Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Seong-Pil Kang, Dongwook Lee, Howon Ra, Kisub Kim
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Patent number: 8308913Abstract: Disclosed is an apparatus for recovering an acrylic acid from a mixture containing acrylic acid, acrylic acid dimer and impurities with high boiling point, including: an acrylic acid recovering device that comprises an acrylic acid distillation unit being present within an acrylic acid dimer pyrolysis tank, and is operated under reduced pressure; a separation column for removing impurities with high boiling point from the mixture which is introduced into the acrylic acid recovering device; and a line for introducing the mixture into the acrylic acid recovering device.Type: GrantFiled: September 23, 2009Date of Patent: November 13, 2012Assignee: LG Chem, Ltd.Inventors: Seong Pil Kang, Seok Kwan Choi, Kyoung Su Ha, Jun Seok Ko, Boo Gon Woo, Young Bae Kim
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Patent number: 8142742Abstract: Disclosed is a shell-and-tube heat exchanger type reactor that can be used for a process of producing unsaturated acids from olefins via fixed-bed catalytic partial oxidation, which comprises at least one reaction tube, each including at least one first-step catalyst layer, in which olefins are oxidized by a first-step catalyst to mainly produce unsaturated aldehydes, and at least two second-step catalyst layers, in which the unsaturated aldehydes are oxidized by a second-step catalyst to produce unsaturated acids, wherein a first catalyst layer of the second-step catalyst layers, disposed right adjacent to the first-step catalyst layer, has an activity corresponding to 5˜30% of the activity of the catalyst layer having a highest activity among the second-step catalyst layers. A method of producing unsaturated acids from olefins by using the reactor is also disclosed.Type: GrantFiled: September 17, 2010Date of Patent: March 27, 2012Assignee: LG Chem, Ltd.Inventors: Boo Gon Woo, Jun Seok Ko, Kyoung Su Ha, Seong Pil Kang, Seok Hwan Choi, Young Bae Kim
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Publication number: 20110319682Abstract: The present invention relates to an ionic liquid compound that inhibits a formation of a gas hydrate. The compound of the present invention changes an equilibrium temperature and pressure of a gas hydrate in small quantity into a lower temperature and/or a higher pressure, and simultaneously retards the formation of the gas hydrate under the same environment. Thus, the compound of the present invention is used in oil and natural gas industries to effectively inhibit or delay the formation of the gas hydrate under the condition having a low temperature and a high pressure.Type: ApplicationFiled: June 27, 2011Publication date: December 29, 2011Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventor: Seong-Pil Kang
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Publication number: 20110008218Abstract: Disclosed is a shell-and-tube heat exchanger type reactor that can be used for a process of producing unsaturated acids from olefins via fixed-bed catalytic partial oxidation, which comprises at least one reaction tube, each including at least one first-step catalyst layer, in which olefins are oxidized by a first-step catalyst to mainly produce unsaturated aldehydes, and at least two second-step catalyst layers, in which the unsaturated aldehydes are oxidized by a second-step catalyst to produce unsaturated acids, wherein a first catalyst layer of the second-step catalyst layers, disposed right adjacent to the first-step catalyst layer, has an activity corresponding to 5˜30% of the activity of the catalyst layer having a highest activity among the second-step catalyst layers. A method of producing unsaturated acids from olefins by using the reactor is also disclosed.Type: ApplicationFiled: September 17, 2010Publication date: January 13, 2011Applicant: LG CHEM, LTD.Inventors: Boo Gon WOO, Jun Seok KO, Kyoung Su HA, Seong Pil KANG, Seok Hwan CHOI, Young Bae KIM
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Patent number: 7816559Abstract: Disclosed is a shell-and-tube heat exchanger type reactor that can be used for a process of producing unsaturated acids from olefins via fixed-bed catalytic partial oxidation, which comprises at least one reaction tube, each including at least one first-step catalyst layer, in which olefins are oxidized by a first-step catalyst to mainly produce unsaturated aldehydes, and at least two second-step catalyst layers, in which the unsaturated aldehydes are oxidized by a second-step catalyst to produce unsaturated acids, wherein a first catalyst layer of the second-step catalyst layers, disposed right adjacent to the first-step catalyst layer, has an activity corresponding to 5˜30% of the activity of the catalyst layer having a highest activity among the second-step catalyst layers. A method of producing unsaturated acids from olefins by using the reactor is also disclosed.Type: GrantFiled: March 17, 2006Date of Patent: October 19, 2010Assignee: LG Chem, Ltd.Inventors: Boo Gon Woo, Jun Seok Ko, Kyoung Su Ha, Seong Pil Kang, Seok Hwan Choi, Young Bae Kim
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Publication number: 20100015017Abstract: A shell-and-tube heat exchanger-type reactor including one or more catalytic tubes, each including a first-step reaction zone and a second-step reaction zone, wherein at least one of the first-step reaction zone and the second-step reaction zone is divided into two or more shell spaces by a partition; each of the divided shell spaces is independently heat-controlled; and a heat transfer medium having a temperature from the lowest active temperature of a catalyst layer in a reaction tube corresponding to the first shell space of the first-step reaction zone or the first shell space of the second-step reaction zone to the lowest active temperature of the catalyst layer plus 20° C.; and the first shell space of the first-step reaction zone or the first shell space of the second-step reaction zone is controlled so as to provide a reactant conversion contribution per length of 1.2˜2.5.Type: ApplicationFiled: September 22, 2009Publication date: January 21, 2010Applicant: LG CHEMICAL, LTD.Inventors: Kyoung Su Ha, Boo Gon Woo, Jun Seok Ko, Seong Pil Kang, Seok Hwan Choi, Young Bae Kim
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Publication number: 20100012476Abstract: Disclosed is a simplified apparatus for recovering acrylic acid from a mixture containing acrylic acid, acrylic acid dimer and impurities with high boiling point, in a stable and efficient manner. An apparatus for recovering an acrylic acid from a mixture containing acrylic acid, acrylic acid dimer and impurities with high boiling point, which comprises: an acrylic acid recovering device that comprises an acrylic acid distillation unit being present within an acrylic acid dimer pyrolysis tank, and is operated under reduced pressure; and a line for introducing the mixture into the acrylic acid recovering device, wherein decomposition of the acrylic acid dimer is carried out under reduced pressure at a lower part of the acrylic acid recovering device, while the acrylic acid is recovered by distillation under reduced pressure from a top of the acrylic acid recovering device.Type: ApplicationFiled: September 23, 2009Publication date: January 21, 2010Inventors: Seong Pil KANG, Seok Kwan Choi, Kyoung Su Ha, Jun Seok Ko, Boo Gon Woo, Young Bae Kim