Patents by Inventor Derek G. Gavin

Derek G. Gavin 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).

  • Fuel oils from coal
    Patent number: 4371727
    Abstract: Fuel oils especially suitable as gas oils for fuelling high speed Diesel engines, are made by hydrogenating a middle oil derived from coal and containing at least 90% of polycyclic hydrocarbons and essentially no paraffinic material, and fractionating the hydrogenated oil to yield the gas oil. The product oil is fully competitive with gas oils from petroleum, and may be blended with petroleum gas oil.
    Type: Grant
    Filed: October 7, 1980
    Date of Patent: February 1, 1983
    Assignee: Coal Industry (Patents) Limited
    Inventor: Derek G. Gavin
  • Catalysts
    Patent number: 4313852
    Abstract: A hydrotreating catalyst which is resistant to carbonaceous deposits and is particularly useful for hydrotreating coal-derived liquids, is molybdenum or tungsten disulphide in an amount of 0.1 to 10% by weight, substantially completely on the outer surface of an active carbon support having a surface area in excess of 800 m.sup.2 /g. The catalyst can be made by absorbing molybdenum or tungsten trisulphide onto the active carbon support and reducing the trisulphide to the disulphide.
    Type: Grant
    Filed: July 1, 1980
    Date of Patent: February 2, 1982
    Assignee: Coal Industry (Patents) Limited
    Inventors: Derek G. Gavin, Michael A. Jones