Patents by Inventor Gary G. Neuenschwander

Gary G. Neuenschwander 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).

  • Publication number: 20190071606
    Abstract: A combined hydrothermal liquefaction (HTL) and catalytic hydrothermal gasification (CHG) system and process are described that convert various biomass-containing sources into separable bio-oils and aqueous effluents that contain residual organics. Bio-oils may be converted to useful bio-based fuels and other chemical feedstocks. Residual organics in HTL aqueous effluents may be gasified and converted into medium-BTU product gases and directly used for process heating or to provide energy.
    Type: Application
    Filed: November 2, 2018
    Publication date: March 7, 2019
    Applicant: Battelle Memorial Institute
    Inventors: Douglas C. Elliott, Gary G. Neuenschwander, Todd R. Hart
  • Patent number: 10138426
    Abstract: A combined hydrothermal liquefaction (HTL) and catalytic hydrothermal gasification (CHG) system and process are described that convert various biomass-containing sources into separable bio-oils and aqueous effluents that contain residual organics. Bio-oils may be converted to useful bio-based fuels and other chemical feedstocks. Residual organics in HTL aqueous effluents may be gasified and converted into medium-BTU product gases and directly used for process heating or to provide energy.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: November 27, 2018
    Assignee: Battelle Memorial Institute
    Inventors: Douglas C. Elliott, Gary G. Neuenschwander, Todd R. Hart
  • Publication number: 20180023003
    Abstract: A combined hydrothermal liquefaction (HTL) and catalytic hydrothermal gasification (CHG) system and process are described that convert various biomass-containing sources into separable bio-oils and aqueous effluents that contain residual organics. Bio-oils may be converted to useful bio-based fuels and other chemical feedstocks. Residual organics in HTL aqueous effluents may be gasified and converted into medium-BTU product gases and directly used for process heating or to provide energy.
    Type: Application
    Filed: August 31, 2017
    Publication date: January 25, 2018
    Applicant: Battelle Memorial Institute
    Inventors: Douglas C. Elliott, Gary G. Neuenschwander, Todd R. Hart
  • Patent number: 9758728
    Abstract: A combined hydrothermal liquefaction (HTL) and catalytic hydrothermal gasification (CHG) system and process are described that convert various biomass-containing sources into separable bio-oils and aqueous effluents that contain residual organics. Bio-oils may be converted to useful bio-based fuels and other chemical feedstocks. Residual organics in HTL aqueous effluents may be gasified and converted into medium-BTU product gases and directly used for process heating or to provide energy.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: September 12, 2017
    Assignee: Battelle Memorial Institute
    Inventors: Douglas C. Elliott, Gary G. Neuenschwander, Todd R. Hart
  • Patent number: 9404063
    Abstract: A system and process are described for clean separation of biocrudes and water by-products from hydrothermal liquefaction (HTL) product mixtures of organic and biomass-containing feedstocks at elevated temperatures and pressures. Inorganic compound solids are removed prior to separation of biocrude and water by-product fractions to minimize formation of emulsions that impede separation. Separation may be performed at higher temperatures that reduce heat loss and need to cool product mixtures to ambient. The present invention thus achieves separation efficiencies not achieved in conventional HTL processing.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: August 2, 2016
    Assignees: Battelle Memorial Institute, Genifuel Corporation
    Inventors: Douglas C. Elliott, Todd R. Hart, Gary G. Neuenschwander, James R. Oyler, Leslie J. Rotness, Jr., Andrew J. Schmidt, Alan H. Zacher
  • Publication number: 20150126758
    Abstract: A system and process are described for clean separation of biocrudes and water by-products from hydrothermal liquefaction (HTL) product mixtures of organic and biomass-containing feedstocks at elevated temperatures and pressures. Inorganic compound solids are removed prior to separation of biocrude and water by-product fractions to minimize formation of emulsions that impede separation. Separation may be performed at higher temperatures that reduce heat loss and need to cool product mixtures to ambient. The present invention thus achieves separation efficiencies not achieved in conventional HTL processing.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 7, 2015
    Applicants: GENIFUEL CORPORATION, BATTELLE MEMORIAL INSTITUTE
    Inventors: Douglas C. Elliott, Todd R. Hart, Gary G. Neuenschwander, James R. Oyler, Leslie J. Rotness, JR., Andrew J. Schmidt, Alan H. Zacher
  • Publication number: 20130331623
    Abstract: A combined hydrothermal liquefaction (HTL) and catalytic hydrothermal gasification (CHG) system and process are described that convert various biomass-containing sources into separable bio-oils and aqueous effluents that contain residual organics. Bio-oils may be converted to useful bio-based fuels and other chemical feedstocks. Residual organics in HTL aqueous effluents may be gasified and converted into medium-BTU product gases and directly used for process heating or to provide energy.
    Type: Application
    Filed: May 13, 2013
    Publication date: December 12, 2013
    Applicant: BATTELLE MEMORIAL INSTITUTE
    Inventors: Douglas C. Elliott, Gary G. Neuenschwander, Todd R. Hart
  • Patent number: 8241605
    Abstract: Continuous processing of wet biomass feedstock by catalytic hydrothermal gasification must address catalyst fouling and poisoning. One solution can involve heating the wet biomass with a heating unit to a temperature sufficient for organic constituents in the feedstock to decompose, for precipitates of inorganic wastes to form, for preheating the wet feedstock in preparation for subsequent separation of sulfur contaminants, or combinations thereof. Treatment further includes separating the precipitates out of the wet feedstock, removing sulfur contaminants, or both using a solids separation unit and a sulfur separation unit, respectively. Having removed much of the inorganic wastes and the sulfur that can cause poisoning and fouling, the wet biomass feedstock can be exposed to the heterogeneous catalyst for gasification.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: August 14, 2012
    Assignee: Battelle Memorial Institute
    Inventors: Douglas C. Elliott, Robert Scott Butner, Gary G. Neuenschwander, Alan H. Zacher, Todd R. Hart
  • Patent number: 7956224
    Abstract: The invention provides palladium-catalyzed hydrogenations of bio-oils and certain organic compounds. Experimental results have shown unexpected and superior results for palladium-catalyzed hydrogenations of organic compounds typically found in bio-oils.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: June 7, 2011
    Assignee: Battelle Memorial Institute
    Inventors: Douglas C. Elliott, Jianli Hu, Todd R. Hart, Gary G. Neuenschwander
  • Publication number: 20100154305
    Abstract: Continuous processing of wet biomass feedstock by catalytic hydrothermal gasification must address catalyst fouling and poisoning. One solution can involve heating the wet biomass with a heating unit to a temperature sufficient for organic constituents in the feedstock to decompose, for precipitates of inorganic wastes to form, for preheating the wet feedstock in preparation for subsequent separation of sulfur contaminants, or combinations thereof. Treatment further includes separating the precipitates out of the wet feedstock, removing sulfur contaminants, or both using a solids separation unit and a sulfur separation unit, respectively. Having removed much of the inorganic wastes and the sulfur that can cause poisoning and fouling, the wet biomass feedstock can be exposed to the heterogeneous catalyst for gasification.
    Type: Application
    Filed: December 19, 2008
    Publication date: June 24, 2010
    Inventors: Douglas C. Elliott, Robert Scott Butner, Gary G. Neuenschwander, Alan H. Zacher, Todd R. Hart
  • Patent number: 7652131
    Abstract: The invention includes methods of processing plant material by adding water to form a mixture, heating the mixture, and separating a liquid component from a solid-comprising component. At least one of the liquid component and the solid-comprising component undergoes additional processing. Processing of the solid-comprising component produces oils, and processing of the liquid component produces one or more of glycerol, ethylene glycol, lactic acid and propylene glycol. The invention includes a process of forming glycerol, ethylene glycol, lactic acid and propylene glycol from plant matter by adding water, heating and filtering the plant matter. The filtrate containing starch, starch fragments, hemicellulose and fragments of hemicellulose is treated to form linear poly-alcohols which are then cleaved to produce one or more of glycerol, ethylene glycol, lactic acid and propylene glycol. The invention also includes a method of producing free and/or complexed sterols and stanols from plant material.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: January 26, 2010
    Assignee: Battelle Memorial Institute
    Inventors: Todd A. Werpy, Andrew J. Schmidt, John G. Frye, Jr., Alan H. Zacher, James A. Franz, Mikhail S. Alnajjar, Gary G. Neuenschwander, Eric V. Alderson, Rick J. Orth, Charles A. Abbas, Kyle E. Beery, Anne M. Rammelsberg, Catherine J. Kim
  • Publication number: 20090113787
    Abstract: The invention provides palladium-catalyzed hydrogenations of bio-oils and certain organic compounds. Experimental results have shown unexpected and superior results for palladium-catalyzed hydrogenations of organic compounds typically found in bio-oils.
    Type: Application
    Filed: June 17, 2008
    Publication date: May 7, 2009
    Applicant: Battelle Memorial Institute
    Inventors: Douglas C. Elliott, Jianli Hu, Todd R. Hart, Gary G. Neuenschwander
  • Patent number: 7425657
    Abstract: The invention provides palladium-catalyzed hydrogenations of bio-oils and certain organic compounds. Experimental results have shown unexpected and superior results for palladium-catalyzed hydrogenations of organic compounds typically found in bio-oils.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: September 16, 2008
    Assignee: Battelle Memorial Institute
    Inventors: Douglas C. Elliott, Jianli Hu, Todd R. Hart, Gary G. Neuenschwander
  • Patent number: 6982328
    Abstract: The invention includes methods of processing plant material by adding water to form a mixture, heating the mixture, and separating a liquid component from a solid-comprising component. At least one of the liquid component and the solid-comprising component undergoes additional processing. Processing of the solid-comprising component produces oils, and processing of the liquid component produces one or more of glycerol, ethylene glycol, lactic acid and propylene glycol. The invention includes a process of forming glycerol, ethylene glycol, lactic acid and propylene glycol from plant matter by adding water, heating and filtering the plant matter. The filtrate containing starch, starch fragments, hemicellulose and fragments of hemicellulose is treated to form linear poly-alcohols which are then cleaved to produce one or more of glycerol, ethylene glycol, lactic acid and propylene glycol. The invention also includes a method of producing free and/or complexed sterols and stanols from plant material.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: January 3, 2006
    Assignees: Archer Daniels Midland Company, Battelle Memorial Institute
    Inventors: Todd A. Werpy, Andrew J. Schmidt, John G. Frye, Jr., Alan H. Zacher, James A. Franz, Mikhail S. Alnajjar, Gary G. Neuenschwander, Eric V. Alderson, Rick J. Orth, Charles A. Abbas, Kyle E. Beery, Anne M. Rammelsberg, Catherine J. Kim
  • Publication number: 20040175806
    Abstract: The invention includes methods of processing plant material by adding water to form a mixture, heating the mixture, and separating a liquid component from a solid-comprising component. At least one of the liquid component and the solid-comprising component undergoes additional processing. Processing of the solid-comprising component produces oils, and processing of the liquid component produces one or more of glycerol, ethylene glycol, lactic acid and propylene glycol. The invention includes a process of forming glycerol, ethylene glycol, lactic acid and propylene glycol from plant matter by adding water, heating and filtering the plant matter. The filtrate containing starch, starch fragments, hemicellulose and fragments of hemicellulose is treated to form linear poly-alcohols which are then cleaved to produce one or more of glycerol, ethylene glycol, lactic acid and propylene glycol. The invention also includes a method of producing free and/or complexed sterols and stanols from plant material.
    Type: Application
    Filed: March 3, 2003
    Publication date: September 9, 2004
    Applicant: Battelle Memorial Institute
    Inventors: Todd A. Werpy, Andrew J. Schmidt, John G. Frye, Alan H. Zacher, James A. Franz, Mikhail S. Alnajjar, Gary G. Neuenschwander, Eric V. Alderson, Rick J. Orth, Charles A. Abbas, Kyle E. Beery, Catherine J. Kim