Patents by Inventor Douglas Gene Naae

Douglas Gene Naae 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).

  • Integrated biofuel process
    Patent number: 9181505
    Abstract: The instant invention pertains to new processes which produce an energy source effectively, efficiently, and in a more environmentally friendly manner. The process comprises hydrolyzing a lignocellulosic feedstock to form lignocellulosic hydrolyzate and a hydrolyzate residue. The lignocellulosic hydrolyzate is treated to produce hydrogen. The hydrolyzate residue may be reacted with hydrogen in the presence of a catalyst to yield the energy source.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: November 10, 2015
    Assignee: Texaco Inc. & Texaco Development Corporation
    Inventors: James F. Stevens, Mukund R. Karanjikar, Kerry K. Spilker, Douglas Gene Naae, Dennis P. Essl, Peter Charles Ricci, Zoran Mirkovic, Thomas M. Vu, Stephen J. Decanio, Jerry M. Rovner, Jason C. Hicks
  • Process for generating a hydrocarbon feedstock lignin
    Patent number: 8894818
    Abstract: The present invention discloses processes for generating a hydrocarbon feedstock for biofuels synthesis from lignin via hydroprocessing. Embodiments of the present invention can occur in a refinery setting or in a paper mill setting. Embodiments of the present invention can utilize the separated lignin or the entire black liquor solution.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: November 25, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: William Lawrence Schinski, Alexander E. Kuperman, Jinyi Han, Douglas Gene Naae
  • Process for generating a hydrocarbon feedstock from lignin
    Patent number: 8795472
    Abstract: The present invention discloses processes for generating a hydrocarbon feedstock for biofuels synthesis from lignin via hydroprocessing. Embodiments of the present invention can occur in a refinery setting or in a paper mill setting. Embodiments of the present invention can utilize the separated lignin or the entire black liquor solution.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: August 5, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: William Lawrence Schinski, Alexander E. Kuperman, Jinyi Han, Douglas Gene Naae
  • INTEGRATED BIOFUEL PROCESS
    Publication number: 20100307052
    Abstract: The instant invention pertains to new processes which produce an energy source effectively, efficiently, and in a more environmentally friendly manner. The process comprises hydrolyzing a lignocellulosic feedstock to form lignocellulosic hydrolyzate and a hydrolyzate residue. The lignocellulosic hydrolyzate is treated to produce hydrogen. The hydrolyzate residue may be reacted with hydrogen in the presence of a catalyst to yield the energy source.
    Type: Application
    Filed: June 3, 2009
    Publication date: December 9, 2010
    Applicant: Texaco Inc.
    Inventors: James F. Stevens, Mukund R. Karanjikar, Kerry K. Spilker, Douglas Gene Naae, Dennis P. Essl, Peter Charles Ricci, Zoran Mirkovic, Thomas M. Vu, Stephen J. Decanio, Jerry M. Rovner, Jason C. Hicks
  • PROCESS FOR GENERATING A HYDROCARBON FEEDSTOCK FROM LIGNIN
    Publication number: 20090218061
    Abstract: The present invention discloses processes for generating a hydrocarbon feedstock for biofuels synthesis from lignin via hydroprocessing. Embodiments of the present invention can occur in a refinery setting or in a paper mill setting. Embodiments of the present invention can utilize the separated lignin or the entire black liquor solution.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 3, 2009
    Applicant: Texaco Inc.
    Inventors: William Lawrence Schinski, Alexander E. Kuperman, Jinyi Han, Douglas Gene Naae
  • PROCESS FOR GENERATING A HYDROCARBON FEEDSTOCK FROM LIGNIN
    Publication number: 20090218062
    Abstract: The present invention discloses processes for generating a hydrocarbon feedstock for biofuels synthesis from lignin via hydroprocessing. Embodiments of the present invention can occur in a refinery setting or in a paper mill setting. Embodiments of the present invention can utilize the separated lignin or the entire black liquor solution.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 3, 2009
    Applicant: Texaco Inc.
    Inventors: William Lawrence Schinski, Alexander E. Kuperman, Jinyi Han, Douglas Gene Naae
  • Catalytic method for the preparation of lignin phenol surfactants in organic solvents
    Patent number: 6207808
    Abstract: A method of making surfactants from lignin is disclosed by reducing lignin in the presence of a metal oxide or iron based catalyst in an organic hydrogen donor solvent to produce lignin phenol and subjecting the lignin phenol to one or a combination of several reactions such as alkoxylation, alkylation, sulfonation, sulfation, alkoxysulfation, and sulfomethylation. The lignin surfactants so produced can be employed in a surfactant system to recover oil from underground formations.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: March 27, 2001
    Assignee: Texaco Inc.
    Inventors: Douglas Gene Naae, Lawrence Edward Whittington, Dan Edward Kieke
  • Catalytic method for the preparation of lignin phenol surfactants in organic solvents
    Patent number: 6100385
    Abstract: A method of making surfactants from lignin is disclosed by reducing lignin in the presence of a metal oxide or iron based catalyst in an organic hydrogen donor solvent to produce lignin phenol and subjecting the lignin phenol to one or a combination of several reactions such as alkoxylation, alkylation, sulfonation, sulfation, alkoxysulfation, and sulfomethylation. The lignin surfactants so produced can be employed in a surfactant system to recover oil from underground formations.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: August 8, 2000
    Assignee: Texaco Inc.
    Inventors: Douglas Gene Naae, Lawrence Edward Whittington, Dan Edward Kieke