Patents Assigned to Marathon Ashland Petroleum Co., LLC
  • Continuous oxidation and distillation process of heavier hydrocarbon materials
    Patent number: 7341656
    Abstract: The present invention provides a way to process heavier hydrocarbons in a relatively low cost and low pressure process using a combination of superheated steam and at least one reaction gas to i) promote oxidation and thermal reaction of heavier hydrocarbons, while simultaneously ii) removing volatile components with a steam stripping process.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: March 11, 2008
    Assignee: Marathon Ashland Petroleum Co. LLC
    Inventors: Donald P. Malone, Patricia K. Doolin, Howard F. Moore
  • Low viscosity, high carbon yield pitch product
    Patent number: 7282135
    Abstract: A low viscosity, high coking value petroleum tar material having a high coking value as compared to standard petroleum tars and containing at least one biodiesel material dissolved therein, and a method for producing such material, are disclosed.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: October 16, 2007
    Assignee: Marathon Ashland Petroleum Co., LLC
    Inventors: Melvin D. Kiser, David C. Boyer