Patents Assigned to GRDC, LLC
  • Patent number: 8828216
    Abstract: Liquid phase processes for producing fuel in a reactor comprising the step of combining at least one oxidizable reactant with liquid water and at least one electrolyte to form a mixture and conducting a fuel-producing reaction in the presence of an electron transfer material, wherein the mixture permits the movement or transport of ions and electrons to facilitate the efficient production of the fuel. An alternative embodiment produces fuel in an electrochemical cell, the reaction characterized by an overall thermodynamic energy balance according to the half-cell reactions occurring at the anode and cathode. Energy generated and/or required by the system components is directed according to the thermodynamic requirements of the half-cell reactions, thereby realizing improved fuel production efficiency.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: September 9, 2014
    Assignee: GRDC, LLC
    Inventor: Maureen A. Grimes
  • Patent number: 8419922
    Abstract: A liquid phase process for producing hydrogen gas in a reactor comprising the step of combining at least one oxidizable reactant with liquid water and at least one alkaline electrolyte to form a mixture having a pH, wherein the pH of the mixture is substantially maintained at a value of about 10.5 or greater and conducting a reaction in the presence of an electron transfer material that permits the movement of electrons. An alternative method produces hydrogen gas from a reaction in an electrochemical cell, the reaction characterized by an overall thermodynamic energy balance and half-cell reactions occurring at each of an anode and cathode. Energy transfers, such as thermal and electric, are analyzed and controlled in order to satisfy the thermodynamic energy balance of the reaction for efficient hydrogen production.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: April 16, 2013
    Assignee: GRDC, LLC
    Inventor: Maureen A. Grimes
  • Patent number: 8318130
    Abstract: A process, preferably continuous, for producing hydrogen gas comprising contacting in the liquid phase at least one oxidizable organic substance in the presence of a mixture comprising at least one conductive catalyst and an aqueous alkaline carbonate electrolyte, wherein at least one bicarbonate composition produced by reaction of the electrolyte is regenerated and the at least one oxidizable organic substance comprises a oxygenated hydrocarbon, for example methanol and/or dimethyl ether. In a preferred embodiment the alkaline electrolyte is regenerated using steam. Various advantageous reaction schemes are described, utilizing, e.g., co-current and countercurrent stream flow and alternative tower sequence arrangements.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: November 27, 2012
    Assignees: COP Energy Technologies LLC, GRDC, LLC
    Inventors: Patrick G. Grimes, Maureen A. Grimes, legal representative, Richard J. Bellows
  • Publication number: 20090277799
    Abstract: Liquid phase processes for producing fuel in a reactor comprising the step of combining at least one oxidizable reactant with liquid water and at least one electrolyte to form a mixture and conducting a fuel-producing reaction in the presence of an electron transfer material, wherein the mixture permits the movement or transport of ions and electrons to facilitate the efficient production of the fuel. An alternative embodiment produces fuel in an electrochemical cell, the reaction characterized by an overall thermodynamic energy balance according to the half-cell reactions occurring at the anode and cathode. Energy generated and/or required by the system components is directed according to the thermodynamic requirements of the half-cell reactions, thereby realizing improved fuel production efficiency.
    Type: Application
    Filed: June 23, 2006
    Publication date: November 12, 2009
    Applicant: GRDC, LLC
    Inventors: Patrick G. Grimes, Maureen A. Grimes
  • Publication number: 20090277800
    Abstract: A liquid phase process for producing hydrogen gas in a reactor comprising the step of combining at least one oxidizing reactant with liquid water and at least one alkaline electrolyte to form a mixture having a pH, wherein the pH of the mixture is substantially maintained at a value of about 10.5 or greater and conducting a reaction in the presence of an electron transfer material that permits the movement of electrons. An alternative method produces hydrogen gas from a reaction in an electrochemical cell, the reaction characterized by an overall thermodynamic energy balance and half-cell reactions occurring at each of an anode and cathode. Energy transfers, such as thermal and electric, are analyzed and controlled in order to satisfy the thermodynamic energy balance of the reaction for efficient hydrogen production.
    Type: Application
    Filed: June 23, 2006
    Publication date: November 12, 2009
    Applicant: GRDC, LLC
    Inventors: Patrick G. Grimes, Maureen A. Grimes