Patents by Inventor Marjorie Rover

Marjorie Rover 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).

  • Low temperature, low pressure upgrading and stabilization of bio-oil or bio-oil fractions
    Patent number: 10577544
    Abstract: The present application discloses low temperature, low pressure methods (LTLP) for upgrading and/or stabilizing bio-oil or a bio-oil fraction. One method comprises providing a bio-oil or bio-oil fraction and hydrogen, which are reacted in the presence of a catalyst at a temperature of less than 150° C. and a pressure of less than 100 bar (absolute) to produce a hydrogenated liquid oil at a carbon yield of over 75%. Another method comprises providing a bio-oil or bio-oil fraction, providing oxygen reducing reaction conditions, and reacting the bio-oil or bio-oil fraction under the oxygen reducing reaction conditions at LTLP to produce an upgraded bio-oil product containing fewer carbonyls than the bio-oil or bio-oil fraction. Yet another method comprises providing a bio-oil or bio-oil fraction and a solution comprising one or more fermentation organisms and a sugar source. The solution and bio-oil or bio-oil fraction are combined to obtain a fermentation mixture, which is incubated at 15° C. to 30° C.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: March 3, 2020
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Marjorie Rover, Robert C. Brown, Patrick H. Hall, Ryan G. Smith
  • Methods of producing solid fuel using low ash, low sulfur coal replacement from fast pyrolysis of biomass
    Patent number: 10457882
    Abstract: The present invention is directed to a method of producing a solid fuel which includes providing a bio-oil and thermally curing the bio-oil to form a carbonaceous solid. The present invention is also directed to a method of producing a solid fuel which includes providing a bio-oil; subjecting the bio-oil to an extraction procedure with an aqueous liquid to produce a concentrated pyrolytic sugar-containing extract and a water insoluble raffinate comprising a lignin-derived phenolic oil; and thermally curing the phenolic oil to form a carbonaceous solid.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: October 29, 2019
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Robert C. Brown, Marjorie Rover, Andrew J. Friend, Ryan G. Smith
  • METHODS OF PRODUCING SOLID FUEL USING LOW ASH, LOW SULFUR COAL REPLACEMENT FROM FAST PYROLYSIS OF BIOMASS
    Publication number: 20170321140
    Abstract: The present invention is directed to a method of producing a solid fuel which includes providing a bio-oil and thermally curing the bio-oil to form a carbonaceous solid. The present invention is also directed to a method of producing a solid fuel which includes providing a bio-oil; subjecting the bio-oil to an extraction procedure with an aqueous liquid to produce a concentrated pyrolytic sugar-containing extract and a water insoluble raffinate comprising a lignin-derived phenolic oil; and thermally curing the phenolic oil to form a carbonaceous solid.
    Type: Application
    Filed: May 8, 2017
    Publication date: November 9, 2017
    Inventors: Robert C. BROWN, Marjorie ROVER, Andrew J. FRIEND, Ryan G. SMITH
  • LOW TEMPERATURE, LOW PRESSURE UPGRADING AND STABILIZATION OF BIO-OIL OR BIO-OIL FRACTIONS
    Publication number: 20150291892
    Abstract: The present application discloses low temperature, low pressure methods (LTLP) for upgrading and/or stabilizing bio-oil or a bio-oil fraction. One method comprises providing a bio-oil or bio-oil fraction and hydrogen, which are reacted in the presence of a catalyst at a temperature of less than 150° C. and a pressure of less than 100 bar (absolute) to produce a hydrogenated liquid oil at a carbon yield of over 75%. Another method comprises providing a bio-oil or bio-oil fraction, providing oxygen reducing reaction conditions, and reacting the bio-oil or bio-oil fraction under the oxygen reducing reaction conditions at LTLP to produce an upgraded bio-oil product containing fewer carbonyls than the bio-oil or bio-oil fraction. Yet another method comprises providing a bio-oil or bio-oil fraction and a solution comprising one or more fermentation organisms and a sugar source. The solution and bio-oil or bio-oil fraction are combined to obtain a fermentation mixture, which is incubated at 15° C. to 30° C.
    Type: Application
    Filed: April 15, 2015
    Publication date: October 15, 2015
    Inventors: Marjorie Rover, Robert C. Brown, Patrick H. Hall, Ryan G. Smith