Patents by Inventor Kisub Kim

Kisub Kim 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).

  • Method for inhibiting structure II gas hydrate formation
    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
  • Composition and method for inhibiting gas hydrate formation
    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
  • METHOD FOR INHIBITING STRUCTURE II GAS HYDRATE FORMATION
    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
  • Composition and Method for Inhibiting Gas Hydrate Formation
    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