Patents by Inventor Dick Y. Jung

Dick Y. Jung 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).

  • Deslagging gasifiers by controlled heat and derivatization
    Patent number: 5338489
    Abstract: Slag deposits in partial oxidation reactors, like coke gasifiers, are removed by controlling temperature and slag derivatization. Derivatized slag is fluidized and leaves the reactor without solidifying in and filling the reactor outlet.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: August 16, 1994
    Assignee: Texaco Inc.
    Inventors: Dick Y. Jung, James K. Wolfenbarger, Donald D. Brooker, Allen M. Robin, Jerrold S. Kassman
  • Separation of gas from solvent by membrane technology
    Patent number: 4995888
    Abstract: Hydrogen sulfide is separated from the dimethyl ether of tetraethylene glycol through a membrane of hydrolyzed cellulose.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: February 26, 1991
    Assignee: Texaco Inc.
    Inventors: Richard F. Beaupre, Dick Y. Jung
  • Process for improving the hydrogen donor properties of a coal liquefaction solvent
    Patent number: 4476009
    Abstract: A process for improving the properties of a hydrogen donor coal liquefaction solvent employed in a coal liquefaction process which comprises separating said coal liquefaction solvent into a first fraction boiling in the range from about 350.degree. to about 675.degree. F., and a second fraction boiling in the range from about 675.degree. F. to about 1000.degree. F., hydrogenating said first fraction at a temperature ranging from about 600.degree. to about 800.degree. F., under a pressure of about 500 to 4000 psig, hydrogenating said second fraction at a temperature ranging from about 600.degree. to 700.degree. F. at a pressure from about 500 to 4000 psig and combining said hydrogenated first and second fractions to provide a coal liquefaction solvent having an increased concentration of hydrogen donor components.
    Type: Grant
    Filed: March 24, 1983
    Date of Patent: October 9, 1984
    Assignee: Texaco Inc.
    Inventors: Erven J. Kuhlmann, Richard P. Guptill, Dick Y. Jung, Hyung K. Zang