Patents by Inventor Cheryl L. M. Joval

Cheryl L. M. Joval 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 producing needle coke
    Patent number: 5286371
    Abstract: A process is provided for producing premium and super premium grade needle coke comprising the steps of passing a heavy resid feedstock to a resid hydrotreating reaction zone at resid hydrotreating conditions and producing light resid hydrotreated products and a heavy resid hydrotreated residual product, directing the heavy resid hydrotreated residual product and FCC decanted oil to a solvent extraction process reaction zone at solvent extraction process conditions and producing products comprising a solvent extracted oil and resin stream and a stream comprising asphaltenes, and conveying at least a portion of the solvent extracted oil and resin stream to a delayed coking process at delayed coking conditions and producing liquid products and premium grade coke.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: February 15, 1994
    Assignee: Amoco Corporation
    Inventors: Shri K. Goval, Jeffrey J. Kolstad, F. W. Hauschildt, Dean G. Venardos, Cheryl L. M. Joval