Patents by Inventor Michael R. Brule

Michael R. Brule 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: 4374015
    Abstract: A process for producing and then separating distillable and substantially non-distillable coal liquefaction products into various fractions employing a series of extraction solvents. At least one fraction comprises a portion of the non-distillable coal liquefaction products and is suitable for use as a coal solvent, either with or without additional hydrotreating, in the coal liquefaction process. In one embodiment, the coal liquefaction products are contacted with a cascade of extraction solvents, having successively fewer carbon atoms in their molecular structure, at elevated temperatures and pressures to separate the products into various fractions. In another embodiment the coal liquefaction products are contacted with a cascade of extraction solvents, having an increasing number of carbon atoms in their molecular structure, at elevated temperatures and pressures to separate the products into various fractions.
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: February 15, 1983
    Assignee: Kerr-McGee Corporation
    Inventor: Michael R. Brule