Patents by Inventor Steven W. Sparks

Steven W. Sparks 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: 7727382
    Abstract: A method for producing and removing coke which has bulk morphology such that at least about 30 volume percent is free-flowing under the force of gravity or hydrostatic forces from a delayed coker drum. At the completion of the fill cycle, the coker drum, filled with hot coke, is cooled by steaming and then flooding it with water, thereby producing a coke/water mixture. The coke/water mixture is released from the coke drum through one or more drum closure/discharge throttling systems near the bottom of the coker drum.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: June 1, 2010
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Steven W. Sparks, Te-Hung Chen, Christopher P. Eppig, Michael Siskin
  • Patent number: 5143597
    Abstract: A used lubricant oil recycling process is disclosed in which a used lubricating oil is injected to a delayed coker downstream of the coker furnace whereby the used oil is thermally cracked into hydrocarbon fuel products which are low in metal contaminants, sulfur and nitrogen. The used lubricant can be preheated in an independent heater to avoid a quenching effect of the process stream when added in an amount greater than about 3% by volume based on the entire volume of the feed.
    Type: Grant
    Filed: January 10, 1991
    Date of Patent: September 1, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Steven W. Sparks, Gerald J. Teitman, Salvatore T. M. Viscontini
  • Patent number: RE36922
    Abstract: A used lubricant oil recycling process is disclosed in which a used lubricating oil is injected to a delayed coker downstream of the coker furnace whereby the used oil is thermally cracked into hydrocarbon fuel products which are low in metal contaminants, sulfur and nitrogen. The used lubricant can be preheated in an independent heater to avoid a quenching effect of the process stream when added in an amount greater than about 3% by volume based on the entire volume of the feed.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: October 24, 2000
    Assignee: Mobil Oil Corporation
    Inventors: Steven W. Sparks, Gerald J. Teitman, Salvatore T. M. Viscontini