Patents by Inventor Gyung Rok Kim

Gyung Rok 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 PRODUCING FEEDSTOCKS OF HIGH QUALITY LUBE BASE OIL FROM UNCONVERTED OIL
    Publication number: 20090050524
    Abstract: The present invention relates to a method of producing a feedstock for high-quality lube base oil from unconverted oil (UCO) obtained from fuel oil hydrocracking, and more particularly to a method of producing a feedstock for high-quality lube base oil by treating vacuum gas oil (VGO) or a mixture of vacuum gas oil (VGO) with coker gas oil (CGO) or deasphalted oil (NAO) as a feedstock in a hydrotreating unit and a first hydrocracking unit and recycling the resulting unconverted oil (UCO) through a second hydrocracking unit.
    Type: Application
    Filed: May 30, 2008
    Publication date: February 26, 2009
    Applicant: SK Energy Co., Ltd.
    Inventors: Gyung Rok Kim, Chang Kuk Kim, In Chan Kim, Jee Sun Shin, Sam Ryong Park