Patents Examined by Walter C. Griffin
  • Deep desulfurization of distillate fuels
    Patent number: 5454933
    Abstract: A process for providing distillate products which are substantially sulfur free, which process comprises subjecting a distillate stream to conventional hydrodesulfurization conditions including a catalyst comprised of a Group VI metal and at least one Group VIII metal on a refractory support. The hydrodesulfurized stream is then treated with a solid adsorbent material capable of adsorbing beta and di-beta-substituted dibenzothiophene sulfur compounds.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: October 3, 1995
    Assignee: Exxon Research and Engineering Company
    Inventors: David W. Savage, Bal K. Kaul, Gerald D. Dupre, Joseph T. O'Bara, William E. Wales, Teh C. Ho