Patents by Inventor Chi W. Hung

Chi W. Hung 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).

  • Process for removal of calcium from a hydrocarbon feedstock
    Patent number: 5164078
    Abstract: We disclose a process for removing calcium from a hydrocarbon feed having at least 1 ppm oil-soluble calcium. It comprises employing a catalyst layer characterized as a fixed bed of catalyst particles, a high volume percent of their pore volume in the form of macropores above 1000 Angstrom in diameter, or an average mesopore diameter of 100-800 .ANG., low surface area, and low hydrogenation activity, and the inclusion of Group I metals, in particular potassium, on the catalyst base.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: November 17, 1992
    Assignee: Chevron Research and Technology Company
    Inventors: Chi W. Hung, Bruce E. Reynolds