Patents by Inventor Douglas W. Soveran

Douglas W. Soveran 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).

  • Patent number: 8410010
    Abstract: The present disclosure relates to a process for the production of a base complex catalyst comprising reacting a hydroxide base with a polyalcohol, under vacuum pressure, at a temperature in the range of about 60° C. to about 220° C., wherein the mole ratio of the hydroxide base to the polyalcohol is greater than about 2:1.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: April 2, 2013
    Assignee: University of Saskatchewan
    Inventors: Martin J. T. Reaney, Jianheng Shen, Douglas W. Soveran
  • Publication number: 20100305344
    Abstract: The present disclosure relates to a process for the production of a base complex catalyst comprising reacting a hydroxide base with a polyalcohol, under vacuum pressure, at a temperature in the range of about 60° C. to about 220° C., wherein the mole ratio of the hydroxide base to the polyalcohol is greater than about 2:1.
    Type: Application
    Filed: December 1, 2008
    Publication date: December 2, 2010
    Applicant: UNIVERSITY OF SASKATCHEWAN
    Inventors: Martin J.T. Reaney, Jianheng Shen, Douglas W. Soveran
  • Patent number: 5705722
    Abstract: A process is described for producing additives for diesel fuels having high cetane numbers and serving as fuel ignition improvers. In the process, biomass feedstock selected from (a) tall oil containing less than 0.5 wt % ash, less than 25 wt % unsaponifiables, up to 50 wt % diterpenic acids and 30 to 60 wt % unsaturated fatty acids, (b) wood oils from the pulping of hardwood species, (c) animal fats and (d) blends of said tall oil with plant or vegetable oil containing substantial amounts of unsaturated fatty acids or animal fats, is subjected to hydroprocessing by contacting the feedstock with gaseous hydrogen under hydroprocessing conditions in the presence of a hydroprocessing catalyst to obtain a product mixture. This product mixture is then separated and fractionated to obtain a hydrocarbon product boiling in the diesel fuel boiling range, this product being the high cetane number additive.
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: January 6, 1998
    Assignee: Natural Resources Canada
    Inventors: Jacques Monnier, Guy Tourigny, Douglas W. Soveran, Alfred Wong, Edmund N. Hogan, Mark Stumborg
  • Patent number: 4992605
    Abstract: There is described a process for producing hydrocarbon products in the diesel boiling range, comprising mainly C.sub.15 -C.sub.18 paraffins and being highly effective as diesel fuel ignition improvers. The process comprises hydroprocessing vegetable oils such as canola, sunflower, soybean and rapeseed oils or some fatty acids in hydroprocessing temperatures (350.degree.-450.degree. C.), pressures (4.8-15.2 MPa) and liquid hourly space velocity (LHSV) of 0.5-5.0 hr.sup.-1 depending on the type and purity of the feedstock. Commercially available hydroprocessing catalysts may be used.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: February 12, 1991
    Inventors: Wayne K. Craig, Douglas W. Soveran