Patents by Inventor Wayne K. Craig

Wayne K. Craig 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).

  • Production of hydrocarbons with a relatively high cetane rating
    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