Patents by Inventor Andrew J. FRIEND

Andrew J. FRIEND 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).

  • 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