Patents by Inventor Alan F. Ivens

Alan F. Ivens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Treatment of effluent liquors
    Patent number: 4606830
    Abstract: Aqueous effluent liquors such as those derived from the ash-slagging of coal are treated to remove halide, e.g. chloride ions by heating the liquor to 400.degree. C. to 500.degree. C. and contacting the vapor with, for example, a fixed or fluidized bed of calcium carbonate maintained at the reaction temperature.During the heating, the temperature is increased at a rate of at least 50.degree. C. sec.sup.-1 over the range 100.degree. C. to 300.degree. C. The treated liquor may be used as a reactant in the ash-slagging gasification of coal.
    Type: Grant
    Filed: August 21, 1984
    Date of Patent: August 19, 1986
    Assignee: British Gas Corporation
    Inventors: Brian A. Cleaver, Alan F. Ivens