Patents Assigned to Alberta Energy Co., Ltd.
  • Solvent process for bitumen separation from oil sands froth
    Patent number: 5876592
    Abstract: A paraffinic solvent is mixed with bitumen froth containing water and solids. Sufficient solvent is added to induce inversion when the mixture is subjected to gravity or centrifugal forces. The emulsion reports to the water phase and a dry bitumen product is obtained.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: March 2, 1999
    Assignees: Alberta Energy Co., Ltd., Canadian Occidental Petroleum, Ltd., Esso Resources Canada Limited, Gulf Canada Resources Limited, Her Majesty the Queen in right of Canada, as represented by the Minister of Natural Resources, HBOG-Oil Sands Limited, Pancanadian Petroleum Limited, Petro-Canada, Inc., Mocal Energy Limited, Murphy Oil Company, Ltd.
    Inventors: Robert N. Tipman, Yi-Cheng Long