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).

  • Patent number: 10988847
    Abstract: The present invention relates to an apparatus and method of preparing carbonate and/or formate from carbon dioxide.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: April 27, 2021
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Ki Tae Park, Soon Kwan Jeong, Seong Pil Kang, Hak Joo Kim, Min Hye Youn
  • Patent number: 10815577
    Abstract: The present invention relates to a method and an apparatus of preparing a reduction product of carbon dioxide by electrochemically reducing carbon dioxide.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: October 27, 2020
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Ki Tae Park, Soon Kwan Jeong, Hak Joo Kim, Seong Pil Kang, Min Hye Youn
  • Publication number: 20190270047
    Abstract: 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: Application
    Filed: November 8, 2017
    Publication date: September 5, 2019
    Inventors: 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
  • Patent number: 10202538
    Abstract: 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: Grant
    Filed: May 22, 2015
    Date of Patent: February 12, 2019
    Inventors: Seong-Pil Kang, Kisub Kim, Jong-Nam Kim
  • Publication number: 20180202056
    Abstract: The present invention relates to a method and an apparatus of preparing a reduction product of carbon dioxide by electrochemically reducing carbon dioxide.
    Type: Application
    Filed: July 14, 2016
    Publication date: July 19, 2018
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Ki Tae PARK, Soon Kwan JEONG, Hak Joo KIM, Seong Pil KANG, Min Hye YOUN
  • Publication number: 20180127886
    Abstract: The present invention relates to an apparatus and method of preparing carbonate and/or formate from carbon dioxide.
    Type: Application
    Filed: November 6, 2017
    Publication date: May 10, 2018
    Applicant: Korea Institute of Energy Research
    Inventors: Ki Tae PARK, Soon Kwan JEONG, Seong Pil KANG, Hak Joo KIM, Min Hye YOUN
  • Patent number: 9309172
    Abstract: 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: Grant
    Filed: January 22, 2014
    Date of Patent: April 12, 2016
    Assignee: Korea Institute of Energy Research
    Inventors: Seong-Pil Kang, Jong-Won Lee, Dongwook Lee, Yong Koo Kim
  • Patent number: 9228075
    Abstract: 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: Grant
    Filed: May 3, 2012
    Date of Patent: January 5, 2016
    Assignee: Korea Institute of Energy Research
    Inventors: Seong-Pil Kang, Dongwook Lee, Howon Ra, Kisub Kim
  • Publication number: 20150337196
    Abstract: 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: Application
    Filed: May 22, 2015
    Publication date: November 26, 2015
    Inventors: Seong-Pil KANG, Kisub KIM, Jong-Nam KIM
  • Patent number: 8961656
    Abstract: 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: Grant
    Filed: June 27, 2011
    Date of Patent: February 24, 2015
    Assignee: Korea Institute of Energy Research
    Inventor: Seong-Pil Kang
  • Publication number: 20140206920
    Abstract: 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: Application
    Filed: January 22, 2014
    Publication date: July 24, 2014
    Applicant: Korea Institute of Energy Research
    Inventors: Seong-Pil Kang, Jong-Won Lee, Dongwook Lee, Yong Koo Kim
  • Publication number: 20130112923
    Abstract: 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: Application
    Filed: May 3, 2012
    Publication date: May 9, 2013
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Seong-Pil Kang, Dongwook Lee, Howon Ra, Kisub Kim
  • Patent number: 8308913
    Abstract: 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: Grant
    Filed: September 23, 2009
    Date of Patent: November 13, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Seong Pil Kang, Seok Kwan Choi, Kyoung Su Ha, Jun Seok Ko, Boo Gon Woo, Young Bae Kim
  • Patent number: 8142742
    Abstract: 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: Grant
    Filed: September 17, 2010
    Date of Patent: March 27, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Boo Gon Woo, Jun Seok Ko, Kyoung Su Ha, Seong Pil Kang, Seok Hwan Choi, Young Bae Kim
  • Publication number: 20110319682
    Abstract: 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: Application
    Filed: June 27, 2011
    Publication date: December 29, 2011
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventor: Seong-Pil Kang
  • Publication number: 20110008218
    Abstract: 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: Application
    Filed: September 17, 2010
    Publication date: January 13, 2011
    Applicant: LG CHEM, LTD.
    Inventors: Boo Gon WOO, Jun Seok KO, Kyoung Su HA, Seong Pil KANG, Seok Hwan CHOI, Young Bae KIM
  • Patent number: 7816559
    Abstract: 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: Grant
    Filed: March 17, 2006
    Date of Patent: October 19, 2010
    Assignee: LG Chem, Ltd.
    Inventors: Boo Gon Woo, Jun Seok Ko, Kyoung Su Ha, Seong Pil Kang, Seok Hwan Choi, Young Bae Kim
  • Publication number: 20100012476
    Abstract: 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: Application
    Filed: September 23, 2009
    Publication date: January 21, 2010
    Inventors: Seong Pil KANG, Seok Kwan Choi, Kyoung Su Ha, Jun Seok Ko, Boo Gon Woo, Young Bae Kim
  • Publication number: 20100015017
    Abstract: 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: Application
    Filed: September 22, 2009
    Publication date: January 21, 2010
    Applicant: LG CHEMICAL, LTD.
    Inventors: Kyoung Su Ha, Boo Gon Woo, Jun Seok Ko, Seong Pil Kang, Seok Hwan Choi, Young Bae Kim
  • Patent number: 7632968
    Abstract: Disclosed is a method for producing (meth)acrylic acid comprising a process of recovering (meth)acrylic acid as aqueous (meth)acrylic acid solution from a (meth)acrylic acid-containing gas mixture produced by the catalytic gas phase oxidation of at least one reactant selected from the group consisting of propane, propylene, isobutylene and (meth)acrolein, wherein the recovering process comprises the steps of: (1) feeding the (meth)acrylic acid-containing gas mixture into a quenching tower and condensing it in the quenching tower so as to recover an aqueous (meth)acrylic acid solution from the bottom of the quenching tower, in which some of the recovered aqueous (meth)acrylic acid solution is recycled to the upper portion of the quenching tower so as to condense the (meth)acrylic acid-containing gas mixture; (2) passing the uncondensed part of the (meth)acrylic acid-containing gas mixture from the top of the quenching tower to a distillation tower; and (3) heating the bottom of the distillation tower to separa
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: December 15, 2009
    Assignee: LG Chem, Ltd.
    Inventors: Seong Pil Kang, Seok Hwan Choi, Kyoung Su Ha, Jun Seok Ko, Young Bae Kim, Boo Gon Woo, Min Jeong Park