Patents by Inventor Byung Tak NAM

Byung Tak NAM 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: 11927156
    Abstract: The present invention relates to an apparatus for reducing greenhouse gas emission in a vessel cooperated with exhaust gas recirculation (EGR), and a vessel including the same, in which NOX generation is reduced, which is the original purpose of EGR, while maintaining existing EGR, SOX as well as CO2, which is the representative greenhouse gas, are absorbed and converted into materials that do not affect environments, and the materials are discharged or stored as useful materials, thereby preventing corrosion of an engine and improving combustion efficiency.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: March 12, 2024
    Inventor: Byung Tak Nam
  • Patent number: 11852062
    Abstract: The present invention relates to an apparatus for reducing greenhouse gas emission in a vessel and a vessel including the same, which are capable of constantly maintaining a concentration of a greenhouse gas absorbing liquid to prevent a decrease in absorption performance of an absorption tower, and applying a pressurization system to prevent the loss of an absorbent liquid due to the natural evaporation of a high-concentration absorbent liquid. Or which are capable of cooling exhaust gas with fresh water by a heat exchange method, thereby preventing a decrease in concentration of an absorbent liquid, and controlling the concentration of the absorbent liquid to constantly maintain the concentration of the absorbing liquid, thereby preventing a decrease in absorption performance.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: December 26, 2023
    Assignee: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
    Inventor: Byung Tak Nam
  • Publication number: 20230383678
    Abstract: The present invention relates to an apparatus for reducing greenhouse gas emission in a vessel and a vessel including the same, which are capable of constantly maintaining a concentration of a greenhouse gas absorbing liquid to prevent a decrease in absorption performance of an absorption tower, and applying a pressurization system to prevent the loss of an absorbent liquid due to the natural evaporation of a high-concentration absorbent liquid. Or which are capable of cooling exhaust gas with fresh water by a heat exchange method, thereby preventing a decrease in concentration of an absorbent liquid, and controlling the concentration of the absorbent liquid to constantly maintain the concentration of the absorbing liquid, thereby preventing a decrease in absorption performance.
    Type: Application
    Filed: December 17, 2020
    Publication date: November 30, 2023
    Applicant: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO.,LTD.
    Inventor: Byung Tak NAM
  • Publication number: 20230372864
    Abstract: The present invention relates to an apparatus for reducing greenhouse gas emission in a vessel and a vessel including the same, in which CO2 absorbed by taking only a part of the absorbent liquid used when collecting CO2 is removed, so that the device sizes of an absorbent liquid recycling unit and an absorbent liquid circulating unit is kept small and continuous operation is enabled. Or in which exhaust gas is cooled by a heat exchange method, thereby preventing the decrease in a concentration of an absorbent liquid, and CO2 absorbed by taking only a part of the absorbent liquid used when collecting CO2 is removed and an unreacted absorbent liquid is continuously circulated, thereby enabling continuous operation.
    Type: Application
    Filed: December 17, 2020
    Publication date: November 23, 2023
    Applicant: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO.,LTD.
    Inventor: Byung Tak NAM
  • Publication number: 20230372867
    Abstract: The present invention relates to an apparatus for reducing greenhouse gas emission in a vessel and a vessel including the same, in which an absorbent liquid recycling unit is provided in two or more stages so that an unreacted aqueous ammonium salt solution remaining in ammonia water is removed to maintain a concentration of ammonia water at a certain level, thereby increasing a recovery rate of an absorbent liquid and preventing a deterioration in greenhouse gas absorption performance. Or in which exhaust gas is cooled by a heat exchange method, thereby preventing a decrease in a concentration of an absorbent liquid, and an absorbent liquid recycling unit is provided in two or more stages so that an unreacted aqueous ammonium salt solution remaining in ammonia water is removed, thereby increasing a recovery rate of the absorbent liquid and preventing a deterioration in greenhouse gas absorption performance.
    Type: Application
    Filed: December 17, 2020
    Publication date: November 23, 2023
    Applicant: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
    Inventor: Byung Tak NAM
  • Publication number: 20230243322
    Abstract: The present invention relates to an apparatus for reducing greenhouse gas emission in a vessel cooperated with exhaust gas recirculation (EGR), and a vessel including the same, in which NOx generation is reduced, which is the original purpose of EGR, while maintaining existing EGR, SOx as well as CO2, which is the representative greenhouse gas, are absorbed and converted into materials that do not affect environments, and the materials are discharged or stored as useful materials, thereby preventing corrosion of an engine and improving combustion efficiency.
    Type: Application
    Filed: December 17, 2020
    Publication date: August 3, 2023
    Applicant: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO.,LTD.
    Inventor: Byung Tak NAM
  • Publication number: 20230243284
    Abstract: The present invention relates to an apparatus for reducing greenhouse gas emission in a vessel cooperated with exhaust gas recirculation (EGR) and intelligent control by exhaust recycling (iCER), and a vessel including the same, in which EGR and iCER are combined so that NOx generation is reduced by EGR and CO2 and SOx are absorbed and converted into materials that do not affect environments, thereby preventing corrosion of an engine, improving combustion quality, increasing engine efficiency by iCER, and reducing methane slip.
    Type: Application
    Filed: December 17, 2020
    Publication date: August 3, 2023
    Applicant: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
    Inventor: Byung Tak NAM
  • Publication number: 20230184152
    Abstract: The present invention relates to an apparatus for reducing greenhouse gas emission in a vessel, and a vessel including the same, which are capable of satisfying IMO greenhouse gas emission regulations by separating and discharging NOx, SOx, and CO2 from exhaust gas exhausted from a vessel engine and increasing CO2 solubility and CO2 removal efficiency by removing CO2 after removing SOx.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 15, 2023
    Applicant: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
    Inventor: Byung Tak NAM
  • Publication number: 20170174306
    Abstract: Disclosed is a method for operating an engine for a vessel including an engine which can use both natural gas and fuel oil as fuel. According to the method for operating an engine for a vessel, each engine is operated in one of modes including: a gas mode in which the engine is driven using natural gas as fuel; a fuel oil mode in which the engine is driven using fuel oil as fuel; and a fuel distribution mode in which the engine simultaneously uses natural gas and fuel oil as fuel.
    Type: Application
    Filed: April 3, 2015
    Publication date: June 22, 2017
    Applicant: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
    Inventors: Byung Tak NAM, Kyung Jin KWON