Patents by Inventor Tristram Chivers

Tristram Chivers 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).

  • Catalyst for sulphur removal from hydrocarbons
    Patent number: 4438218
    Abstract: A novel catalyst is provided which is effective in removing at least a portion of the sulphur contained in hydrocarbons, without the use of an external hydrogen source. The catalyst is a sulphided mixture, on a catalyst support, of (a) a sulphide of one or more of the transition metals iron, vanadium, molybdenum and copper, (b) a sulphide of either sodium or potassium, and (c) a hydroxide of either sodium or potassium. Sulphur removal with the catalyst is demonstrated with oil sand bitumen, heavy crude oil and asphaltenes.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: March 20, 1984
    Assignee: Alberta Oil Sands Technology and Research Authority
    Inventors: Philip M. Boorman, Tristram Chivers, Donald F. Tavares, Kalabeerappa N. Mahadev