Patents by Inventor Geoffrey A. Tompsett

Geoffrey A. Tompsett 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: 20230348792
    Abstract: Methods for obtaining a biocrude intermediate by hydrothermal liquefaction of plant wastes are provided. Using a waste feed having a high cellulose content, the method involves grinding the waste feed to obtain a pulverized waste feed, and subjecting the pulverized waste feed to hydrothermal liquefaction at a temperature at or greater than at about 250° C. At this temperature or greater a catalyst is not necessary to obtain the biocrude. A lower temperature can be used, such as greater than about 150° C. in presence of a catalyst. The step of grinding the plant material, for example ball grinding, reduces particle size and crystallinity, and combined with the high temperature treatment improves the yield of biocrude. Biocrude can be upgraded to biofuel by high temperature hydrodeoxygenating in the presence of hydrogen. Plant wastes that would otherwise contribute green house gases are instead converted to fuels.
    Type: Application
    Filed: April 27, 2023
    Publication date: November 2, 2023
    Inventors: Michael Timko, Heather LeClerc, Geoffrey A. Tompsett, Alex R. Maag, Andrew R. Teixeira
  • Patent number: 11773331
    Abstract: Methods are described herein for upgrading ad refining hydrocarbons, and producing at least one petrochemical product, the method including: preparing a reaction mixture by adding at least two of: a quantity of bioethanol, a quantity of hydrocarbon, and a quantity of water to a reactor containment; combining the reaction mixture with a quantity of catalyst in the reactor containment; applying reaction conditions to the reactor containment thereby generating supercritical conditions for the reaction mixture and obtaining a product mixture; and extracting at least one petrochemical product from the product mixture.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: October 3, 2023
    Assignee: Worcester Polytechnic Institute
    Inventors: Michael T. Timko, Geoffrey A. Tompsett, Azadeh Zaker
  • Patent number: 11566186
    Abstract: A petroleum refining method for upgrading petroleum products improves the efficiency and reduces the costs of upgrading oils, such as lipids, bitumen, crude oil, fracking oils, synthetic oils, and other feeds, to produce useful fuels and chemical precursor streams. Usage of a specific type of zeolite (ZSM-5) catalyst, supercritical water to control coke formation, and a specific response to phase behavior and other catalytic effects optimize the process. A prescribed set of reactor conditions employing supercritical water increases activity of the catalyst in industrial reactions.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: January 31, 2023
    Assignee: Worcester Polytechnic Institute
    Inventors: Michael T. Timko, Geoffrey A. Tompsett, Azadeh Zaker
  • Publication number: 20220325184
    Abstract: Methods are described herein for upgrading ad refining hydrocarbons, and producing at least one petrochemical product, the method including: preparing a reaction mixture by adding at least two of: a quantity of bioethanol, a quantity of hydrocarbon, and a quantity of water to a reactor containment; combining the reaction mixture with a quantity of catalyst in the reactor containment; applying reaction conditions to the reactor containment thereby generating supercritical conditions for the reaction mixture and obtaining a product mixture; and extracting at least one petrochemical product from the product mixture.
    Type: Application
    Filed: April 5, 2022
    Publication date: October 13, 2022
    Inventors: Michael T. Timko, Geoffrey A. Tompsett, Azadeh Zaker
  • Patent number: 11286432
    Abstract: Catalyst composition and parameters for catalytic hydrothermal liquefaction of biomass to bio-oil fuels target municipal solid waste (MSW) rather than lignin rich plant waste typically sought for bio-oil production. An HTL (Hydrothermal Liquefaction) reactor generates bio-fuel from municipal solid waste (MSW), including receiving, in the HTL reactor, non-lignin based waste from a municipal processing stream, and adding a solvent for extracting sugars from green waste components of the municipal processing stream. The reactor extracts a liquid from the received waste, and converts water soluble products in the liquid into oil soluble products via C—C (carbon-to-carbon) coupling reactions. A catalyst added to the resulting aqueous stream recovers a beneficial oil product, and is optimized by tuning acid and base sites on the solid catalyst.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: March 29, 2022
    Assignee: Worcester Polytechnic Institute
    Inventors: Michael T. Timko, Geoffrey A. Tompsett, Alex R. Maag
  • Publication number: 20210179950
    Abstract: A petroleum refining method for upgrading petroleum products improves the efficiency and reduces the costs of upgrading oils, such as lipids, bitumen, crude oil, fracking oils, synthetic oils, and other feeds, to produce useful fuels and chemical precursor streams. Usage of a specific type of zeolite (ZSM-5) catalyst, supercritical water to control coke formation, and a specific response to phase behavior and other catalytic effects optimize the process. A prescribed set of reactor conditions employing supercritical water increases activity of the catalyst in industrial reactions.
    Type: Application
    Filed: May 15, 2019
    Publication date: June 17, 2021
    Inventors: Michael T. Timko, Geoffrey A. Tompsett, Azadeh Zaker
  • Publication number: 20200109336
    Abstract: Catalyst composition and parameters for catalytic hydrothermal liquefaction of biomass to bio-oil fuels target municipal solid waste (MSW) rather than lignin rich plant waste typically sought for bio-oil production. An HTL (Hydrothermal Liquefaction) reactor generates bio-fuel from municipal solid waste (MSW), including receiving, in the HTL reactor, non-lignin based waste from a municipal processing stream, and adding a solvent for extracting sugars from green waste components of the municipal processing stream. The reactor extracts a liquid from the received waste, and converts water soluble products in the liquid into oil soluble products via C—C(carbon-to-carbon) coupling reactions. A catalyst added to the resulting aqueous stream recovers a beneficial oil product, and is optimized by tuning acid and base sites on the solid catalyst.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 9, 2020
    Inventors: Michael T. Timko, Geoffrey A. Tompsett, Alex R. Maag
  • Publication number: 20140008237
    Abstract: A method of producing a hydrocarbon comprises providing electrical energy to a first fuel cell comprising an anode, cathode, and polymer electrolyte membrane; electrocatalytically oxidizing a hydrogen source by a first catalyst disposed on the anode to produce protons; and electrocatalytically reducing a hydrocarbonaceous source by the protons and a second catalyst disposed on the cathode to produce a hydrocarbon fuel composition, wherein the first and second catalysts are each a solid catalyst, and the anode and cathode are separated by the polymer electrolyte membrane.
    Type: Application
    Filed: November 6, 2012
    Publication date: January 9, 2014
    Applicant: THE UNIVERSITY OF MASSACHUSETTS
    Inventors: George W. Huber, Geoffrey A. Tompsett, Sara K. Green, Won Bae Kim, Hyung Ju Kim
  • Patent number: 6841284
    Abstract: In one disclosed embodiment according to the invention, a fuel cell system for generating electrical power comprises: an open-ended tubular solid oxide fuel cell; a first fuel injector tube extending from a first fuel plenum chamber through one open end of the fuel cell; and a second fuel injector tube extending from a second fuel plenum chamber through another open end of the fuel cell; wherein the first and second fuel injector tubes form a gap within the fuel cell from which a hydrogen-containing fuel gas may flow towards the open ends of the fuel cell. Further related systems and method are also disclosed.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: January 11, 2005
    Assignee: Acumentrics Corporation
    Inventors: Michael Brown, Basil Fenton, Kevin Gaw, Neil Fernandes, Gary A. Mook, Hugh L. Smith, Geoffrey Tompsett, Caine Finnerty, Anthony F. Litka, Virginie Bouvier, Kevin H. Negrotti
  • Publication number: 20030203263
    Abstract: In one disclosed embodiment according to the invention, a fuel cell system for generating electrical power comprises: an open-ended tubular solid oxide fuel cell; a first fuel injector tube extending from a first fuel plenum chamber through one open end of the fuel cell; and a second fuel injector tube extending from a second fuel plenum chamber through another open end of the fuel cell; wherein the first and second fuel injector tubes form a gap within the fuel cell from which a hydrogen-containing fuel gas may flow towards the open ends of the fuel cell.
    Type: Application
    Filed: June 4, 2002
    Publication date: October 30, 2003
    Inventors: Michael Brown, Basil Fenton, Kevin Gaw, Neil Fernandes, Gary A. Mook, Hugh L. Smith, Geoffrey Tompsett, Caine Finnerty, Anthony F. Litka, Virginie Bouvier, Kevin H. Negrotti