Patents Assigned to Chemroll Enterprises, Inc.
  • Hydrotreating of carbonaceous materials
    Patent number: 4606812
    Abstract: A process for hydrotreating carbonaceous materials is disclosed. The carbonaceous material is contacted with steam and with empirical hydrates of alkali metal hydrosulfides, monosulfides, or polysulfides. The process hydrocracks, hydrogenates, denitrogenates, demetallizes, and desulfurizes. In a preferred embodiment, hydrogen sulfide is co-fed to the reaction zone.
    Type: Grant
    Filed: November 7, 1983
    Date of Patent: August 19, 1986
    Assignee: Chemroll Enterprises, Inc.
    Inventor: Rollan Swanson
  • Hydrogenation of asphaltenes and the like
    Patent number: 4468316
    Abstract: A process for converting, into lighter viscosity products, heavy fractions from petroleum or other hydrocarbon refining, e.g. asphaltenes; catalysts especially suitable therefor and a process for this conversion have been disclosed; by further upgrading, the obtained products can be usefully employed as fuels and the like.
    Type: Grant
    Filed: March 3, 1983
    Date of Patent: August 28, 1984
    Assignee: Chemroll Enterprises, Inc.
    Inventor: Rollan Swanson