Patents by Inventor Sang Deuk Lee

Sang Deuk 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).

  • Patent number: 8585990
    Abstract: Disclosed is a micro-macro channel reactor comprising: a top end plate and a bottom end plate assembled on the outskirts of the micro-macro channel reactor; a heat exchanging plate by which a heat exchanging material passes through passages thereof so that heat is transferred between the heat exchanging material and such a fluid as a reactant, a product, or a mixture thereof that passes through a catalyst plate; a catalyst plate stacked and assembled together with the heat exchanging plate and including a catalyst section containing a reaction catalyst necessary to perform a catalytic reaction of the reactant while the reactant is passing through the catalyst section; and a support plate stacked and assembled together with the catalyst plate and configured to provide passages that allows the reactant to pass through the catalyst section of the catalyst plate.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: November 19, 2013
    Assignee: Korea Institute of Science and Technology
    Inventors: Dong Ju Moon, Sang Deuk Lee, Hyoung Shick Yim, Jung Shik Kang, MoonJu Park, Eun Hur, Su Hyun Cho, Byung Gwon Lee
  • Publication number: 20130267615
    Abstract: Disclosed are methods for producing dimethyl ether using a dimethyl ether (DME)-floating, production, storage and offloading (FPSO) system that can be used in offshore oil fields or stranded gas fields. More particularly, the disclosure relates to producing dimethyl ether from gas extracted from stranded gas fields or from associated gas extracted from oil fields at an FMSO facility, which includes a reforming reactor and a dimethyl ether reactor equipped offshore.
    Type: Application
    Filed: May 31, 2013
    Publication date: October 10, 2013
    Inventors: Dong Ju MOON, Sang Deuk LEE, Byung Gwon LEE, Hyun joo LEE, Yun Ju LEE, Jung Shik KANG, Sung Geun LEE, Eun Bae LEE, Hyun Jin KIM, Bang Hee KIM, Jang Jin KIM, Chang Hwan MOON, Seong Hui HONG
  • Publication number: 20130109888
    Abstract: Disclosed are a dimethyl ether (DME)-floating, production, storage and offloading (FPSO) system that can be used in offshore oil fields or stranded gas fields and a method for producing dimethyl ether using the same. More particularly, the disclosure relates to a DME-FPSO system capable of producing dimethyl ether from gas extracted from stranded gas fields or from associated gas extracted from oil fields, which includes a reforming reactor and a dimethyl ether reactor equipped offshore, and a method for producing the same.
    Type: Application
    Filed: October 31, 2011
    Publication date: May 2, 2013
    Applicants: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD., DONGHWA ENTEC CO., LTD., SUNG JIN GEOTEC CO., LTD., HY-LOK CORPORATION, JNK HEATERS CO., LTD.
    Inventors: Dong Ju MOON, Sang Deuk LEE, Byung Gwon LEE, Hyun joo LEE, Yun Ju LEE, Jung Shik KANG, Sung Geun LEE, Eun Bae LEE, Hyun Jin KIM, Bang Hee KIM, Jang Jin KIM, Chang Hwan MOON, Seong Hui HONG
  • Publication number: 20110274596
    Abstract: Disclosed is a micro-macro channel reactor comprising: a top end plate and a bottom end plate assembled on the outskirts of the micro-macro channel reactor; a heat exchanging plate by which a heat exchanging material passes through passages thereof so that heat is transferred between the heat exchanging material and such a fluid as a reactant, a product, or a mixture thereof that passes through a catalyst plate; a catalyst plate stacked and assembled together with the heat exchanging plate and including a catalyst section containing a reaction catalyst necessary to perform a catalytic reaction of the reactant while the reactant is passing through the catalyst section; and a support plate stacked and assembled together with the catalyst plate and configured to provide passages that allows the reactant to pass through the catalyst section of the catalyst plate.
    Type: Application
    Filed: April 7, 2011
    Publication date: November 10, 2011
    Applicant: Korea institute of Science and Technology
    Inventors: Dong Ju Moon, Sang Deuk Lee, Hyoung Shick Yim, Jung Shik Kang, MoonJu Park, Eun Hur, Su Hyun Cho, Byung Gwon Lee
  • Publication number: 20110130474
    Abstract: Disclosed are a gas to liquids (GTL)-floating production, storage and offloading (FPSO) system that can be used in offshore oil fields or stranded gas fields and a method for producing synthetic fuel using the same. More particularly, the disclosure relates to a GTL-FPSO system capable of producing liquid synthetic fuel from gas extracted from stranded gas fields or associated gas extracted from oil fields, including a reforming reactor and a liquid hydrocarbon producer, and a method for producing the same.
    Type: Application
    Filed: November 24, 2010
    Publication date: June 2, 2011
    Applicant: Korea Institute of Science and Technology
    Inventors: Dong Ju MOON, Yun Ju Lee, Jung Shik Kang, Moonju Park, Sojung Kim, Sang Deuk Lee, Hyunjoo Lee
  • Patent number: 7662915
    Abstract: The present invention relates to synthetic peptides having selectively protected amines of untargeted sites and to methods for production thereof and for specifically conjugating PEG to targeted sites of the synthetic peptides using the same. The present invention provides a much higher yield of PEG conjugated peptides in which PEG is specifically combined to amines at targeted sites.
    Type: Grant
    Filed: January 18, 2003
    Date of Patent: February 16, 2010
    Assignee: Pegsphere Co., Ltd.
    Inventors: Sang Deuk Lee, Kang Choon Lee, Dong Hee Na, Yu Seok Youn
  • Patent number: 7560047
    Abstract: The present invention relates to a structured catalyst for reforming of gasoline and a method of preparing the same, more particularly to a structured catalyst for reforming of gasoline for fuel-cell powered vehicles prepared by wash-coating the transition metal based reforming catalyst on the surface of the ceramic honeycomb support wash-coated with sub-micron sized alumina or its precursor to sufficiently increase the effective surface area and the performance of the catalyst and a method of preparing the same.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: July 14, 2009
    Assignee: Korea Institute of Science and Technology
    Inventors: Dong Ju Moon, Jong Woo Ryu, Dong Min Kang, Byung Gwon Lee, Byoung Sung Ahn, Sang Deuk Lee
  • Patent number: 7547659
    Abstract: The present invention relates to a structured catalyst for reforming of gasoline and a method of preparing the same, more particularly to a structured catalyst for reforming of gasoline for fuel-cell powered vehicles prepared by wash-coating the transition metal based reforming catalyst on the surface of the ceramic honeycomb support wash-coated with sub-micron sized alumina or its precursor to sufficiently increase the effective surface area and the performance of the catalyst and a method of preparing the same.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: June 16, 2009
    Assignee: Korea Institute of Science and Technology
    Inventors: Dong Ju Moon, Jong Woo Ryu, Dong Min Kang, Byung Gwon Lee, Byoung Sung Ahn, Sang Deuk Lee
  • Publication number: 20090061078
    Abstract: The present invention relates to a solid oxide fuel cell for internal reforming of hydrocarbons and carbon dioxide, in particular, to a solid oxide fuel cell in which one side of solid oxide electrolyte (YSZ) is attached to an air electrode (La0.8Sr0.2MnO3) and its other side is attached to a catalyst electrode of Ni-YSZ type or perovskite type metal oxide. The electrochemical conversion system using the solid oxide fuel cell permits the occurrence of internal reforming of hydrocarbons and carbon dioxide concomitantly with the coproduction of a syngas and electricity, and overcomes the shortcomings associated with the catalytic deactivation due to carbon deposition and the high-energy consumption.
    Type: Application
    Filed: August 11, 2008
    Publication date: March 5, 2009
    Applicant: Korea Institute of Science & Technology
    Inventors: Dong Ju Moon, Jong Woo Ryu, Jong Min Park, Byung Gwon Lee, Sang Deuk Lee
  • Publication number: 20080296535
    Abstract: The present invention relates to a structured catalyst for reforming of gasoline and a method of preparing the same, more particularly to a structured catalyst for reforming of gasoline for fuel-cell powered vehicles prepared by wash-coating the transition metal based reforming catalyst on the surface of the ceramic honeycomb support wash-coated with sub-micron sized alumina or its precursor to sufficiently increase the effective surface area and the performance of the catalyst and a method of preparing the same.
    Type: Application
    Filed: July 28, 2008
    Publication date: December 4, 2008
    Applicant: Korea Institute of Science and Technology
    Inventors: Dong Ju Moon, Jong Woo Ryu, Dong Min Kang, Byung Gwon Lee, Byoung Sung Ahn, Sang Deuk Lee
  • Publication number: 20080260628
    Abstract: The present invention relates to a Ni-based catalyst for preparing syngas and a tri-reforming reaction of methane using the catalyst, particularly to a Ni-based catalyst, where an active ingredient (a nickel) is impregnated in a zirconia support and the zirconia is doped with a yttrium and a metal selected among a lanthanum and an alkaline earth metal to distort the crystal lattice of the zirconia, to facilitate the transfer of oxygen ion and to increase the storage and supply of oxygen, thus inhibiting the carbon deposition on the active nickel metal and maintaining the activity of the catalyst. Particularly, if the catalyst herein is used for the tri-reforming reaction of methane where a mixture of carbon dioxide, oxygen and steam is used as an oxidant, the molar ratio of hydrogen and carbon monoxide (H2/CO) in the syngas may be selectively controlled.
    Type: Application
    Filed: April 17, 2007
    Publication date: October 23, 2008
    Inventors: Dong Ju Moon, Jung Shik Kang, Won Seok Nho, Dae-Hyun Kim, Sang Deuk Lee, Byung Gwon Lee
  • Publication number: 20080193853
    Abstract: Disclosed are a pyrrolidinium type sulphonated zwitterion, a method of preparing the same, a lithium salt prepared by using the same, a method of preparing the salt, an electrolytic composition containing the salt and a lithium secondary battery including the electrolytic composition. Since the pyrrolidinium type sulphonated zwitterions prepared according to the invention are thermally and electrochemically stable, the lithium salt prepared by using the same exhibits a lower hygroscopicity than the conventional lithium salts and strong thermal and electrochemical stabilities. When the lithium salt of the invention is dissolved in an organic solvent independently or together with the ionic liquid, excellent conductivity and electrochemical stability are exhibited. Accordingly, the lithium salt of the invention is very suitable for the electrolyte of the lithium secondary battery.
    Type: Application
    Filed: October 28, 2005
    Publication date: August 14, 2008
    Applicant: Korea Institute of Science and Technology
    Inventors: Hong-Gon Kim, Sang-Deuk Lee, Byoung-Sung Ahn, Je-Seung Lee, Un-Seok Kim, Byung-Won Cho, Hoon-Sik Kim
  • Patent number: 7410717
    Abstract: The present invention relates to a solid oxide fuel cell for internal reforming of hydrocarbons and carbon dioxide, in particular, to a solid oxide fuel cell in which one side of solid oxide electrolyte (YSZ) is attached to an air electrode (La0.8Sr0.2MnO3) and its other side is attached to a catalyst electrode of Ni-YSZ type or perovskite type metal oxide. The electrochemical conversion system using the solid oxide fuel cell permits the occurrence of internal reforming of hydrocarbons and carbon dioxide concomitantly with the coproduction of a syngas and electricity, and overcomes the shortcomings associated with the catalytic deactivation due to carbon deposition and the high-energy consumption.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: August 12, 2008
    Assignee: Korea Institute of Science & Technology
    Inventors: Dong Ju Moon, Jong Woo Ryu, Jong Min Park, Byung Gwon Lee, Sang Deuk Lee
  • Patent number: 7256154
    Abstract: The present invention relates to a structured catalyst for reforming of gasoline and a method of preparing the same, more particularly to a structured catalyst for reforming of gasoline for fuel-cell powered vehicles prepared by wash-coating the transition metal based reforming catalyst on the surface of the ceramic honeycomb support wash-coated with sub-micron sized alumina or its precursor to sufficiently increase the effective surface area and the performance of the catalyst and a method of preparing the same.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: August 14, 2007
    Assignee: Korea Institute of Science and Technology
    Inventors: Dong Ju Moon, Jong Woo Ryu, Dong Min Kang, Byung Gwon Lee, Byoung Sung Ahn, Sang Deuk Lee
  • Patent number: 7083773
    Abstract: Nitrogen trifluoride is produced with a high yield by the method comprising forming a fast stream of micro droplets of a fused ammonium fluoride salt by rapidly ejecting the fused ammonium fluoride salt into a reactor through a nozzle while circulating the fused ammonium fluoride salt in the reactor from a lower portion to an upper portion; and contacting micro droplets of the fused ammonium fluoride salt with fluorine gas sucked in the reactor through a suction pipe for fluorine by a negative pressure formed around the nozzle due to an ejection of the fused ammonium fluoride salt, whereby excessive generation and regional accumulation of the heat of reaction are prevented, reducing the reaction temperature by 10˜30° C. compared with those of the existing methods, and a side reaction occurs only to a slight extent according to the lowered reaction temperature.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: August 1, 2006
    Assignee: Korea Institute of Science and Technology
    Inventors: Young-soo Kwon, Hong-gon Kim, Sang-deuk Lee, Jae-woo Lee, Jong-yev Hong, Hyung-sik Lim, Byoung-sung Ahn
  • Patent number: 6924402
    Abstract: The present invention relates to a process for simultaneously preparing tetrafluoroethylene and hexafluoropropylene by the pyrolysis of difluorochloromethane mixed in the molar ratio of super-heated steam/pre-heated difluorochloromethane ([H2O]/[R22]) of 5-10 under the conditions such as a temperature of 730° C. to 760° C. and a residence time of 0.01 to 0.2 seconds, where the unreacted R22 and produced HFP are recycled and controlled to have an appropriate molar ratio of HFP/R22 of 0.01 to 0.1 in order to obtain a high yield of HFP. Thus, the pyrolysis process of the present invention is efficient for preparing TFE and HFP, which are essential monomers in fluorinated resin industry.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: August 2, 2005
    Assignee: Korea Institute of Science and Technology
    Inventors: Dong Ju Moon, Jung Jo Jung, Yong Joon Lee, Sang Deuk Lee, Byoung Sung Ahn
  • Patent number: 6776922
    Abstract: A refrigerant composition that can be a substitute for chlorodifluoromethane (HCFC-22) comprises: (a) a first constituent of difluoromethane, (b) a second constituent of 1,1,1-trifluoroethane, (c) a third constituent of 1,1-difluoroethane, and (d) a fourth constituent selected from the group consisting of 1,1,1,2,3,3,3-heptafluoropropane, isobutane, 1,1,1,2,3,3-hexafluropropane and butane.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: August 17, 2004
    Assignee: Korea Institute of Science and Technology
    Inventors: Byung-Gwon Lee, Jong-Sung Lim, Sang Deuk Lee, Chang-Nyeon Kim
  • Publication number: 20040082822
    Abstract: The present invention relates to a process for simultaneously preparing tetrafluoroethylene and hexafluoropropylene by the pyrolysis of difluorochloromethane mixed in the molar ratio of super-heated steam/pre-heated difluorochloromethane ([H2O]/[R22]) of 5-10 under the conditions such as a temperature of 730° C. to 760° C. and a residence time of 0.01 to 0.2 seconds, where the unreacted R22 and produced HFP are recycled and controlled to have an appropriate molar ratio of HFP/R22 of 0.01 to 0.1 in order to obtain a high yield of HFP. Thus, the pyrolysis process of the present invention is efficient for preparing TFE and HFP, which are essential monomers in fluorinated resin industry.
    Type: Application
    Filed: April 16, 2003
    Publication date: April 29, 2004
    Inventors: Dong Ju Moon, Jung Jo Jung, Yong Joon Lee, Sang Deuk Lee, Byoung Sung Ahn
  • Publication number: 20040016903
    Abstract: A refrigerant composition that can be a substitute for chlorodifluoromethane (HCFC-22) comprises: (a) a first constituent of difluoromethane, (b) a second constituent of 1,1,1-trifluoroethane, (c) a third constituent of 1,1-difluoroethane, and (d) a fourth constituent selected from the group consisting of 1,1,1,2,3,3,3-heptafluoropropane, isobutane, 1,1,1,2,3,3-hexafluropropane and butane.
    Type: Application
    Filed: July 24, 2002
    Publication date: January 29, 2004
    Applicant: Korea Institute of Science and Technology
    Inventors: Byung-Gwon Lee, Jong-Sung Lim, Sang Deuk Lee, Chang-Nyeon Kim
  • Publication number: 20040013595
    Abstract: Nitrogen trifluoride is produced with a high yield by the method comprising forming a fast stream of micro droplets of a fused ammonium fluoride salt by rapidly ejecting the fused ammonium fluoride salt into a reactor through a nozzle while circulating the fused ammonium fluoride salt in the reactor from a lower portion to an upper portion; and contacting micro droplets of the fused ammonium fluoride salt with fluorine gas sucked in the reactor through a suction pipe for fluorine by a negative pressure formed around the nozzle due to an ejection of the fused ammonium fluoride salt, whereby excessive generation and regional accumulation of the heat of reaction are prevented, reducing the reaction temperature by 10˜30° C. compared with those of the existing methods, and a side reaction occurs only to a slight extent according to the lowered reaction temperature.
    Type: Application
    Filed: July 16, 2003
    Publication date: January 22, 2004
    Applicant: Korea Institute of Science and Technology
    Inventors: Young-Soo Kwon, Hong-Gon Kim, Sang-Deuk Lee, Jae-Woo Lee, Jong-Yev Hong, Hyung-Sik Lim, Byoung-Sung Ahn