Patents Examined by Helane Wyers
  • Disposal of petroleum sludge
    Patent number: 4666585
    Abstract: A process for producing delayed petroleum coke wherein petroleum sludge is added to liquid hydrocarbon coker feedstock.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: May 19, 1987
    Assignee: Atlantic Richfield Company
    Inventors: Dale A. Figgins, J. Jay Grove
  • Hydrotreating petroleum heavy ends in aromatic solvents with large pore size alumina
    Patent number: 4585546
    Abstract: Residual oils containing metals and sulfur are demetallized and desulfurized by adding to the oil an aromatic solvent and contacting the mixtures in the presence of hydrogen with an alumina having an average pore size greater than about 220 Angstroms.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: April 29, 1986
    Assignee: Mobil Oil Corporation
    Inventors: Emmerson Bowes, Malvina Farcasiu, Eric J. Y. Scott