Patents by Inventor Hyeon Yeoul Kim

Hyeon Yeoul 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).

  • Patent number: 6423657
    Abstract: A process and a set of equipment for reactivating spent activated carbon onto which pollutants were adsorbed. The present process comprises subjecting the activated carbon to be reactivated in a mixed solution consisting of ethanol, sodium hydroxide solution and water to effectuate the desorption of the pollutants adsorbed on the activated carbon. The equipment includes (A) a mixing tank for mixing given amounts of water, ethanol and sodium hydroxide solution which are supplied from the respective receptacles thereof; (B) a reactivation reactor for receiving the mixed solution from the mixing tank and subjecting the spent activated carbon filled therein to the mixed solution to effect the desorption of the pollutants adsorbed on the spent activated carbon, wherein the reactivation reactor includes a unit for regulating temperature of the mixed solution; and (C) a storage tank for receiving the reactivated carbon.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: July 23, 2002
    Assignees: Korea Institute of Construction Technology, Daewoo Engineering & Construction Ltd., LG Construction Co., Ltd., Samsung Corporation
    Inventors: Chang Keun Wang, Sang Eun Lee, Hyun Je Oh, Ju Youn Lee, Kwang Nyoung Kim, Hyeon Yeoul Kim, Ki Seop Song, Eung Taek Lee, Hyoung Soo Hu, Young Ho Lee, Sung Min Oh
  • Publication number: 20020065188
    Abstract: A process and a set of equipment for reactivating spent activated carbon onto which pollutants were adsorbed, are invented. The present process comprises subjecting the activated carbon to be reactivated in a mixed solution consisting of ethanol, sodium hydroxide solution and water to effectuate the desorption of the pollutants adsorbed on the activated carbon. The present equipment comprises (A) a mixing tank for mixing given amounts of water, ethanol and sodium hydroxide solution which are supplied from the respective receptacles thereof; (B) a reactivation reactor for receiving the mixed solution from the mixing tank and subjecting the spent activated carbon filled therein to the mixed solution to effect the desorption of the pollutants adsorbed on the spent activated carbon, wherein the reactivation reactor being provided with a means for regulating temperature of the mixed solution; and (C) a storage tank for receiving the reactivated carbon.
    Type: Application
    Filed: December 4, 1997
    Publication date: May 30, 2002
    Inventors: CHANG KEUN WANG, SANG EUN LEE, HYUN JE OH, JU YOUN LEE, KWANG NYOUNG KIM, HYEON YEOUL KIM, KI SEOP SONG, EUNG TAEK LEE, HYOUNG SOO HU, YOUNG HO LEE, SUNG MIN OH