Patents by Inventor Chang Dae Byun

Chang Dae Byun 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: 9878961
    Abstract: A nickel-M-alumina hybrid xerogel catalyst for preparing methane, wherein the metal M is at least one element selected from the group consisting of Fe, Co, Ni, Ce, La, Mo, Cs, Y, and Mg, a method for preparing the catalyst and a method for preparing methane using the catalyst are provided. The catalyst has strong resistance against a high-temperature sintering reaction and deposition of carbon species, and can effectively improve a conversion ratio of carbon monoxide and selectivity to methane.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: January 30, 2018
    Assignee: POSCO
    Inventors: Hyo Jun Lim, Chang Dae Byun, In Kyu Song, Dong Jun Koh, Sun Hwan Hwang, Jeong Gil Seo
  • Publication number: 20140018586
    Abstract: A method for preparing synthetic natural gas (SNG) is provided. More particularly, a method for preparing synthetic natural gas is provided, in which synthetic gas generated after fuel gasification and dust collection is subjected to a first methane synthesis reaction; only part of the gas is subjected to a water gas shift reaction and the remaining gas bypasses; the mixed gas prepared by mixing the gas passed through the water gas shift reaction and the gas bypassing the water gas shift reaction is subjected to a second methane synthesis reaction; and thereby heat of the methane synthesis reaction can be controlled and catalyst life can be lengthened.
    Type: Application
    Filed: December 27, 2011
    Publication date: January 16, 2014
    Applicant: POSCO
    Inventors: Hyo Jun Lim, Chang Dae Byun, Seok Jung Seo, Young Don Yoo, Do Yeon Lee, Mun Hyun Kim
  • Publication number: 20130317127
    Abstract: A nickel-M-alumina hybrid xerogel catalyst for preparing methane, wherein the metal M is at least one element selected from the group consisting of Fe, Co, Ni, Ce, La, Mo, Cs, Y, and Mg, a method for preparing the catalyst and a method for preparing methane using the catalyst are provided. The catalyst has strong resistance against a high-temperature sintering reaction and deposition of carbon species, and can effectively improve a conversion ratio of carbon monoxide and selectivity to methane.
    Type: Application
    Filed: December 28, 2011
    Publication date: November 28, 2013
    Applicant: POSCO
    Inventors: Hyo Jun Lim, Chang Dae Byun, In Kyu Song, Dong Jun Koh, Sun Hwan Hwang, Jeong Gil Seo