Reforming Process Patents (Class 429/423)
  • Patent number: 11338270
    Abstract: Methods for autothermal reforming over a modified red mud catalyst composition, one method including providing a methane feed with oxygen and carbon dioxide to react over the modified red mud catalyst composition at increased temperature and increased pressure to produce synthesis gas comprising H2 and CO, the composition comprising red mud material produced from an alumina extraction process from bauxite ore; nickel oxide, the nickel oxide present at between about 5 wt. % to about 40 wt. % of the modified red mud catalyst composition; and a Periodic Table Group VIB metal oxide, the Group VIB metal oxide present at between about 1 wt. % and about 30 wt. % of the modified red mud catalyst composition.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: May 24, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Bandar A. Fadhel, Bandar H. Alsolami, Rami Bamagain, Mohammed A. Albuali
  • Patent number: 11318447
    Abstract: Ceramic compositions with catalytic activity are provided, along with methods for using such catalytic ceramic compositions. The ceramic compositions correspond to compositions that can acquire increased catalytic activity by cyclic exposure of the ceramic composition to reducing and oxidizing environments at a sufficiently elevated temperature. The ceramic compositions can be beneficial for use as catalysts in reaction environments involving swings of temperature and/or pressure conditions, such as a reverse flow reaction environment. Based on cyclic exposure to oxidizing and reducing conditions, the surface of the ceramic composition can be converted from a substantially fully oxidized state to various states including at least some dopant metal particles supported on a structural oxide surface.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: May 3, 2022
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Matthew S. Ide, Changmin Chun, Anastasios I. Skoulidas
  • Patent number: 11322757
    Abstract: A fuel cell system includes: a fuel cell; an anode off-gas discharge path through which an anode off-gas exhausted from an anode of the fuel cell is discharged; a heating medium circulation path through which a heating medium that recovers heat generated in the fuel cell is circulated; a heat exchanger disposed in the heating medium circulation path; an electric power converter that converts the electric power output from the fuel cell; a case that houses the electric power converter; a first air feeder that supplies air to the case; a housing that houses the fuel cell, the case, and the first air feeder; and an air discharge path through which the air having passed through the case is discharged to outside of the housing. A downstream end of the anode off-gas discharge path is connected to the air discharge path.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: May 3, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Junji Morita, Takehiko Ise, Yoshito Usuki
  • Patent number: 11316184
    Abstract: A fuel cell system includes: a fuel cell that includes a cathode and an anode and generates electricity by reducing a mediator at the cathode; a regenerator that oxidizes, with an oxidant, the mediator reduced by the cathode; an oxidant feed path that is connected to the regenerator, wherein through the oxidant feed path, the oxidant to be supplied to the regenerator flows; a reformer; a combustor that heats the reformer; and a first heat exchanger that exchanges heat between combustion exhaust discharged from the combustor and the oxidant to be supplied to the regenerator.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: April 26, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoru Tamura, Takao Hayashi, Marine Fayolle, Yosuke Kitazawa
  • Patent number: 11316178
    Abstract: A checking method of a resin-framed membrane electrode assembly includes checking whether there is breakage in one of short sides of a first rectangular peripheral shape of a clearance provided in the resin-framed membrane electrode assembly without checking whether there is breakage in any other part of the clearance, the resin-framed membrane assembly including a solid polymer electrolyte membrane, a gas diffusion layer provided on the solid polymer electrolyte membrane, and a resin frame member that has a second rectangular peripheral shape and surrounds the solid polymer electrolyte membrane and the gas diffusion layer to provide the clearance between the resin frame member and the gas diffusion layer, the solid polymer electrolyte membrane being made from a solid polymer electrolyte membrane roll in which a solid polymer electrolyte membrane sheet is wound in a winding direction, long sides of the rectangular peripheral shape extending in the winding direction.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: April 26, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Suguru Ohmori, Masashi Sugishita, Seiji Sugiura
  • Patent number: 11309553
    Abstract: A fuel cell system including power modules including fuel cells, and an exhaust flue connected to the power modules. The exhaust flue includes an outer duct configured to receive relatively cool cabinet exhaust from the power modules, and an inner duct disposed inside of the outer duct and configured to receive relatively hot reaction exhaust from the power modules.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: April 19, 2022
    Assignee: BLOOM ENERGY CORPORATION
    Inventors: Arne Ballantine, Jessica Mahler, Swaminathan Venkataraman, Martin Perry, David Weingaertner, Samuel Juday, Christian Daco
  • Patent number: 11296333
    Abstract: A fuel cell system includes: a fuel cell that has a cathode and an anode and generates electricity by reducing a mediator at the cathode; a regenerator that oxidizes, with an oxidant, the mediator reduced by the cathode; a reformer; a combustor that heats the reformer; and a heating medium path that heats the regenerator, wherein through the heating medium path, combustion exhaust discharged from the combustor or a heat medium heated through heat exchange with the combustion exhaust flows.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: April 5, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoru Tamura, Marine Fayolle
  • Patent number: 11258081
    Abstract: A fuel cell hydrogen supply fault diagnosis system is provided. The system includes multiple fuel tanks that store hydrogen therein to supply the hydrogen and a fuel tank valve disposed at each of the fuel tanks and configured to be opened or closed to supply or shut off the hydrogen of the fuel tanks. A pressure sensor measures pressure in a fuel supply line that extends from each of the multiple fuel tanks to be integrally connected to a fuel cell stack. A supply amount estimator then estimates a supply amount of hydrogen supplied to the fuel cell stack and a consumption amount estimator estimates a consumption amount of hydrogen consumed in a reaction in the fuel cell stack or discharged therefrom. A fault detector then detects a hydrogen supply state.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: February 22, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Boung Ho Min, Dong Hun Lee, Soon Woo Kwon
  • Patent number: 11258082
    Abstract: The fuel cell includes a power generation unit, a plurality of storage containers that are detachable and house hydrogen absorbing alloy, a heat medium passage through which a heat medium flows, and a temperature control unit for heating the storage containers by controlling the temperature of the heat medium and causing the heat medium to flow. The temperature control unit can carry out a first temperature control mode of controlling the temperature of the heat medium to be equal to or higher than a first temperature, and a second temperature control mode of controlling the temperature of the heat medium to be equal to or higher than a second temperature. The temperature control unit determines whether the second temperature mode is to be carried out or not based on the pressure or the temperature of an attached storage container when a new storage container is attached.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: February 22, 2022
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Yoshiaki Fukatsu
  • Patent number: 11251617
    Abstract: Some embodiments include electric power demand stabilization methods and systems that may include receiving an indication that a specific controllable device will have a high power draw event; retrieving a power draw profile for the specific controllable device that includes at least a maximum power draw and an event duration; identifying a plurality of low priority controllable devices with a combined power draw that is substantially equal to the maximum power draw of the specific controllable device; and turning off the plurality of low priority controllable devices for a time period substantially equal to the event duration.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: February 15, 2022
    Assignee: Crossno & Kaye, Inc.
    Inventors: Daniel Walsh, Jesse Crossno, Thomas Foley, Bryan Kaye
  • Patent number: 11251443
    Abstract: A fuel cell system is disclosed, which includes an anode recirculation loop having a fuel cell stack for generating power, a flowmeter, a current sensor and a processor. The flowmeter is configured for measuring a fuel flow rate provided into the anode recirculation loop. The current sensor is configured for measuring a current drawn from the fuel cell stack. The processor is configured for determining a steam to carbon ratio in the anode recirculation loop based on the measured fuel flow rate and the measured current. The fuel cell system further includes a temperature sensor for measuring a temperature in the anode recirculation loop. The process is configured for determining the steam to carbon ration further based on the measured temperature. A method for operating the fuel cell system and a fuel cell power plant are also disclosed.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: February 15, 2022
    Assignee: Cummins Enterprise, LLC
    Inventors: Honggang Wang, Andrew Philip Shapiro, Patrick Hammel Hart, Xiangdong Kong, Ralph Teichmann
  • Patent number: 11196066
    Abstract: Provided is a fuel cell system that can effectively suppress clogging of a pipe due to freezing of water in a fuel gas supply system thereof without the need for halting the operation of the fuel cells, and thus is highly reliable. When possible freezing of water is detected or presumed to be present downstream of an injector, the amount of a fuel gas to be supplied from a circulation pump that is disposed in a circulation channel is relatively increased compared to the amount of the fuel gas to be supplied from the injector.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: December 7, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Seiichi Tanaka, Masashi Toida, Hiroyuki Tsunekawa, Shun Matsumoto, Tsuyoshi Maruo
  • Patent number: 11125391
    Abstract: Systems and methods related to loading and unloading stations for simultaneous unloading of a first fluid from at least one storage tank in a vessel and loading of a second fluid into a storage tank of the same vessel are provided. In at least one aspect, a loading and unloading station includes a first connector for fluid connection to a storage tank of the vessel for unloading the first fluid, and a source of the second fluid. The station also includes a second connector for fluidly connecting the source of the second fluid with a storage tank of the vessel for loading the second fluid. The station further includes a first thermal linkage between the first fluid being unloaded and the second fluid being loaded that facilitates heat transfer between the first fluid and the second fluid at the loading and unloading station.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: September 21, 2021
    Assignee: Saudi Arabian Oil Company
    Inventors: Ahmad O. Al Khowaiter, Aqil Jamal, Mourad Younes
  • Patent number: 11108068
    Abstract: Disclosed is a control system for a fuel cell system that includes at least two or more fuel cell groups which each have at least one fuel cell connected in parallel. The fuel cell control system comprises: a unit level controller configured to control an output of an individual fuel cell; a group level controller configured to determine the output distribution of the individual fuel cells within the fuel cell group based on the performance decrease rates of the individual fuel cells within the fuel cell group; and a system level controller configured to determine the total output of the fuel cell system according to the power demand for the grid and determine the output distribution for each of the fuel cell groups in correspondence to the total output.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: August 31, 2021
    Assignee: FCI CO., LTD.
    Inventors: Ingab Chang, Tae Won Lee
  • Patent number: 11108061
    Abstract: A clamping chamber in a reactor or fuel cell architecture having a stack of elementary units is above the clamping fittings. The clamping chamber, in which a gas other than the reactive gases will flow, is substantially at the same pressure as the reactive gases in the stack. The pressure of the gas flowing in the clamping chamber above the stack of elementary units will then balance the pressure created by the reactive gases and the gases produced within the stack.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: August 31, 2021
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Magali Reytier, Charlotte Bernard, Guilhem Roux, Philippe Szynal
  • Patent number: 11081709
    Abstract: A fuel cell system includes: a fuel cell; a reformer to generate a hydrogen-containing gas; an electric power generation raw material supply unit; a reforming material supply unit configured to supply at least one of reforming water and reforming air, to the reformer; an oxidizing gas supply unit to supply an oxidizing gas to a cathode of the fuel cell; a combustor to ignite an exhaust gas discharged from the fuel cell; and a controller. In an operation stop process of the fuel cell system, the controller causes the oxidizing gas supply unit to supply the oxidizing gas, causes the electric power generation raw material supply unit and the reforming material supply unit to intermittently supply the electric power generation raw material and at least one of the water and the air to the reformer, and causes the ignitor to perform an ignition operation.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: August 3, 2021
    Assignees: PANASONIC CORPORATION, MORIMURA SOFC TECHNOLOGY CO., LTD.
    Inventors: Shigenori Onuma, Kunihiro Ukai, Hiroshi Shirahama, Takeshi Saito, Yosuke Akagi, Taiichiro Sakamoto, Toshiharu Ooe, Toshiharu Otsuka
  • Patent number: 11056699
    Abstract: In a fuel cell system, the output from a plurality of fuel cells can reach an output greater than or equal to auxiliary driving power in a short time because the initial supply amount of raw fuel supplied from a raw fuel supply part is greater than or equal to a first supply amount that is a raw fuel supply amount corresponding to the auxiliary driving power. Thus, even if the raw fuel is supplied at the initial supply amount when a power failure has occurred in an electric power system during a startup operation of the fuel cell system, it is possible to supply electric power from the fuel cells to the auxiliary machinery and continue to drive the auxiliary machinery under the control of a startup controller. This suppresses the stop of the fuel cell system under the startup operation.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: July 6, 2021
    Assignee: Hitachi Zosen Corporation
    Inventors: Kyohei Izuma, Kazuki Wakamiya
  • Patent number: 11050067
    Abstract: A fuel cell system includes a fuel cell, and a burner. The burner has anode off-gas apertures and first and second cathode off-gas apertures. In a cross section of the burner at a cutting plane that passes a first cathode off-gas aperture, an anode off-gas aperture, and a second cathode off-gas aperture that are aligned on a straight line when seen in plan view, the first cathode off-gas aperture is provided on one side of the anode off-gas aperture such that a vector of an ejecting direction of cathode off-gas forms a first acute angle with a vector of an ejecting direction of anode off-gas, and the second cathode off-gas aperture is provided on the other side of the anode off-gas aperture such that the vector of the ejecting direction of cathode off-gas forms a second acute angle with the vector of the ejecting direction of anode off-gas.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: June 29, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Takashi Kakuwa
  • Patent number: 11038186
    Abstract: A system for controlling operation of a reformer for fuel cells is provided. When the temperatures of a high temperature reforming unit operating as an endothermic catalyst reactor and a CO modification unit operating as an exothermic catalyst reactor deviate from catalyst activity reference temperatures, an amount of water supplied for heat exchange is increased so that the water for heat exchange sequentially flows up to the CO modification unit and the high temperature reforming unit. Accordingly, the temperature of the high temperature reforming unit and the temperature of the CO modification unit reach the catalyst activity reference temperatures, thereby preventing deterioration of high-concentration hydrogen production efficiency and unnecessary CO removal efficiency of the reformer and improving lifespan of catalysts of the reformer.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: June 15, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Jung Joo Park
  • Patent number: 11021405
    Abstract: Moulded insulation bodies, processes for the production thereof and use thereof consisting essentially of ceramic material comprising SiO2 fibers and Al2O3 fibers which has been produced using Al2O3 sol as a binder and kilned at a temperature of above 800° C. for insulation of the ends of cracking tubes of a tubular reactor for performing a steam reforming process for generating synthesis gas which project out of the reactor heating space.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: June 1, 2021
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Antonio Coscia, Hans-Werner Scholz
  • Patent number: 11024863
    Abstract: According to a control method of controlling a fuel cell system, the fuel cell system including a solid oxide fuel cell that is supplied with an anode gas and a cathode gas to generate electric power, a fuel processor that at least reforms fuel to generate the anode gas and supplies the generated anode gas to the fuel cell, and a combustor that combusts the supplied fuel to perform warming of the fuel processor, the method is conducted when warming is performed at least at starting-up of the system.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: June 1, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Tatsuya Yaguchi, Hayato Chikugo
  • Patent number: 11005115
    Abstract: Disclosed here is a supported catalyst comprising a thermally stable core, wherein the thermally stable core comprises a metal oxide support and nickel disposed in the metal oxide support, wherein the metal oxide support comprises at least one base metal oxide and at least one transition metal oxide or rare earth metal oxide mixed with or dispersed in the base metal oxide. Optionally the supported catalyst can further comprise an electrolyte removing layer coating the thermally stable core and/or an electrolyte repelling layer coating the electrolyte removing layer, wherein the electrolyte removing layer comprises at least one metal oxide, and wherein the electrolyte repelling layer comprises at least one of graphite, metal carbide and metal nitride. Also disclosed is a molten carbonate fuel cell comprising the supported catalyst as a direct internal reforming catalyst.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: May 11, 2021
    Assignee: FuelCell Energy, Inc.
    Inventors: Jin-Yun Wang, Mohammad Farooque, Ramakrishnan Venkataraman, Chao-Yi Yuh, April Corpuz
  • Patent number: 10998559
    Abstract: An electrical power supply device in an aircraft, the device including an enclosure, the enclosure containing at least: a fuel cell; a dihydrogen generator; a gas feed circuit connecting the dihydrogen generator to the anode of the fuel cell; an oxygen feed device feeding the cathode of the fuel cell; and a cooling circuit of the fuel cell associated with at least one heat exchanger; wherein the enclosure is mounted on an actuator system, the actuator system being configured to move the enclosure from a first position in which the enclosure is housed inside an outer wall of the aircraft, to a second position in which the enclosure projects from the outer wall.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: May 4, 2021
    Assignee: SAFRAN POWER UNITS
    Inventors: Fabien Boudjemaa, Adrien Gasse, Matthieu Baron, Denis Real
  • Patent number: 10989184
    Abstract: An electrochemical hydrogen pump includes a hydrogen pump unit including an electrolyte film, an anode catalyst layer, a cathode catalyst layer, an anode gas diffusion layer, an anode separator, a cathode gas diffusion layer, and a cathode separator, a first end plate and a second end plate, a fastener, and a voltage applicator. The electrochemical hydrogen pump transfers and pressurizes hydrogen on the cathode catalyst layer, when a voltage is applied by the voltage applicator. Cathode gas flow channels in which the cathode gas flows are connected to each other. The amount of thickness reduction of the cathode gas diffusion layer due to compression resulting from fastening of the fastener is larger in the hydrogen pump unit positioned at at least one end of the stacked hydrogen pump units than in the hydrogen pump unit positioned at neither end of the stacked hydrogen pump units.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: April 27, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kunihiro Ukai, Hiromi Kita, Takayuki Nakaue
  • Patent number: 10903512
    Abstract: An electrochemical fuel cell assembly comprises a fuel cell stack having a fuel delivery inlet and a fuel delivery outlet. The fuel cell stack further includes a number of fuel cells each having a membrane-electrode assembly and a fluid flow path coupled between the fuel delivery inlet and the fuel delivery outlet for delivery of fuel to the membrane electrode assembly. A fuel delivery conduit is coupled to the fuel delivery inlet for 10 delivery of fluid fuel to the stack. A bleed conduit is coupled to the fuel delivery outlet for venting fluid out of the stack. A variable orifice flow control device coupled to the bleed conduit configured to dynamically vary an amount of fluid from the fuel delivery outlet passing into the bleed conduit as a function of one or more of the control parameters: (i) measured fuel concentration; (ii) measured humidity; (iii) cell voltages of fuel cells in the 15 stack; (iv) impedance of fuel cells in the stack; (v) resistance of fuel cells in the stack.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: January 26, 2021
    Assignee: INTELLIGENT ENERGY LIMITED
    Inventors: Pratap Rama, Paul Leonard Adcock, Jignesh Karsan Devshi Patel
  • Patent number: 10854897
    Abstract: Temperature control system and method for a fuel cell system are disclosed. The temperature control system includes a state detector, a control selector, a normal controller and an internal model controller. The state detector determines whether the fuel cell system is in a leakage condition based on a dynamic transfer function from an air flowrate provided to the fuel cell system to a fuel cell temperature. The control selector selects to switch between the normal controller and the internal model controller based on a determined result. The normal controller is configured for controlling an air flowrate of the fuel cell system which is not in the leakage condition. The internal model controller is configured for controlling the air flowrate of the fuel cell system in the leakage condition to control the fuel cell temperature. A fuel cell system with the temperature control system is also disclosed.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: December 1, 2020
    Assignee: CUMMINS ENTERPRISE LLC
    Inventors: Fengcheng Sun, Honggang Wang, Nan Xu
  • Patent number: 10826088
    Abstract: Systems and methods for transitioning a fuel cell system between operating modes. The fuel cell system may be a SOFC system comprising Ni-containing anodes. The transitions may be from a shutdown mode to a hot standby mode, from a hot standby mode to a power ready hot standby mode, from a power ready hot standby mode to an operating mode, from an operating mode to a power ready hot standby mode, from a power ready hot standby mode to a hot standby mode, from a hot standby mode to a shutdown mode, and from an operating mode to a shutdown mode.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: November 3, 2020
    Assignee: LG Electronics, Inc.
    Inventors: Mark V. Scotto, Ted Ohrn, Shung-Ik Lee, JaeBong Choi
  • Patent number: 10822233
    Abstract: An illustrative example reformer includes a housing having an inlet plenum, a reforming section, and an outlet. The inlet plenum includes a catalyst situated where a source fluid passing through the inlet plenum will be exposed to the catalyst prior to entering the reforming section.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: November 3, 2020
    Assignee: DOOSAN FUEL CELL AMERICA, INC.
    Inventors: Paul Margiott, James Davies
  • Patent number: 10804547
    Abstract: The power generation system includes a fuel-cell subsystem having a fuel-cell configured to generate an electrical power. The power generation system further includes a power electronics subsystem electrically coupled to the fuel-cell subsystem and configured to process at least a portion of the electrical power generated by the fuel-cell subsystem. The power generation system also includes a first conduit fluidly coupled to the power electronics subsystem and configured to supply at least a portion of a fuel stream to the power electronics subsystem. The power electronics subsystem is configured to heat the portion of the fuel stream to form a pre-heated fuel stream. Moreover, power generation system includes a second conduit fluidly coupled to the power electronics subsystem and the fuel-cell subsystem and configured to supply the pre-heated fuel stream to the fuel-cell subsystem. The fuel-cell is configured to generate the electrical power using the pre-heated fuel stream.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: October 13, 2020
    Assignee: Cummins Enterprise LLC
    Inventors: Ralph Teichmann, Honggang Wang
  • Patent number: 10804548
    Abstract: A fuel cell system includes: a fuel cell; a hydrogen tank; a hydrogen supply flow path configured to connect the hydrogen tank and the fuel cell to each other; a valve element configured to, when closed, shut off supply of hydrogen from the hydrogen tank to the hydrogen supply flow path; a pressure sensor; a pressure reducer configured to reduce internal pressure of the hydrogen supply flow path; and a controller configured to decide presence or absence of a hydrogen leak in the fuel cell system upon a power-generation halt of the fuel cell.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: October 13, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiromu Saito
  • Patent number: 10765785
    Abstract: A combination therapy pad that includes a first layer and a second layer operatively coupled to the first layer. A fiber-optic array is disposed between the first layer and the second layer. A third layer is operatively coupled to the first layer. The third layer includes a vacuum tube in fluid communication with a vacuum source and a therapeutic fluid tube in fluid communication with a therapeutic fluid source. The third layer provides at least one of vacuum therapy and therapeutic fluid treatment to a wound area.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: September 8, 2020
    Assignee: ThermoTek, Inc.
    Inventor: Tony Quisenberry
  • Patent number: 10707511
    Abstract: The present invention provides solid oxide cells such as fuel cells, electrolyzers, and sensors comprising an electrolyte having an interface between an yttria-stabilized zirconia material and a glass material, in some embodiments. Other embodiments add an interface between a platinum oxide material and the yttria-stabilized zirconia material in the electrolyte. Further embodiments of solid oxide cells have an ion-conducting species such as an ionic liquid or inorganic salt in contact with at least one electrode of the cell. Certain embodiments provide room temperature operation of solid oxide cells.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: July 7, 2020
    Assignee: FCET, Inc.
    Inventors: Mikhail Pozvonkov, Mark A. Deininger
  • Patent number: 10654583
    Abstract: A fuel tank inerting system for an aircraft, the system comprising: a fuel tank, and a catalytic heat exchanger. The catalytic heat exchanger comprises a first flow path and a second flow path for heat exchange with the first flow path, as well as a first inlet arranged upstream of the first flow path of the catalytic heat exchanger for providing a mixture of fuel vapour and oxygen to the first flow path for sustaining a catalysed reaction, and a second inlet arranged upstream of the second flow path for providing a flow of fuel from the fuel tank to the second flow path of the catalytic heat exchanger for exchanging heat with the first flow path. The system further comprises a transfer pipe in heat exchange with the fuel tank, wherein the transfer pipe is arranged to receive fuel from the second flow path of the catalytic heat exchanger.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: May 19, 2020
    Assignee: HS MARSTON AEROSPACE LIMITED
    Inventors: Berwyn Pollard, Paul Phillips
  • Patent number: 10622649
    Abstract: Systems and methods for transitioning a fuel cell system between operating modes. The fuel cell system may be a SOFC system comprising Ni-containing anodes. The transitions may be from a shutdown mode to a hot standby mode, from a hot standby mode to a power ready hot standby mode, from a power ready hot standby mode to an operating mode, from an operating mode to a power ready hot standby mode, from a power ready hot standby mode to a hot standby mode, from a hot standby mode to a shutdown mode, and from an operating mode to a shutdown mode.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: April 14, 2020
    Assignee: LG FUEL CELL SYSTEMS INC.
    Inventors: Mark V. Scotto, Ted Ohrn, Shung-Ik Lee, JaeBong Choi
  • Patent number: 10597788
    Abstract: The invention relates to the production or a heat-transfer gas circuit for the heat management/regulation of the stack of an HTE reactor or an SOFC fuel cell by removing certain cells in certain areas of the stack in order to replace them with electrical contact elements that allow the heat transfer gas to pass through.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: March 24, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Magali Reytier, Philippe Szynal
  • Patent number: 10590352
    Abstract: Systems and methods are provided for detecting abnormal temperature conditions within a fixed bed reactor. In a fixed bed reactor, a hydrocarbon (or hydrocarbon-like) feedstock can be exposed to one or more types of catalyst particles at elevated temperatures and/or pressures. In addition to the one or more types of catalyst particles, a plurality of temperature-sensor structures can be included in a catalyst bed and/or a coating including one or more temperature-sensor structures can be provided on an interior wall or other interior surface in the reactor. The temperature-sensor structures can have a threshold temperature at which the temperature-sensor structure changes to allow introduction and/or release of a detectable substance.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: March 17, 2020
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Dana W. Nouri, Hans G. Korsten, Benjamin S. Umansky
  • Patent number: 10589221
    Abstract: In various aspects, systems and methods are provided for integrating molten carbonate fuel cells with a fired heater for production of electrical power while also reducing or minimizing the amount of CO2 present in the flue gas generated by the fired heater. The molten carbonate fuel cells can be integrated for use with fired heater so that at least a portion of the flue gas from fired heater flows through cathodes of the fuel cells and at least a portion of the cathode exhaust is returned to a convection section of the fired heater.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: March 17, 2020
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Thomas A. Badgwell, Frank Hershkowitz, Timothy A. Barckholtz, Paul J. Berlowitz
  • Patent number: 10547071
    Abstract: A system and method for controlling a fuel cell system. An anode tail gas oxidizer (ATO) receives air and fuel exhaust streams from one or more fuel cell stacks of the fuel cell system. The one or more fuel cell stacks provide current to one or more loads. An ATO temperature signal is used to control at least one of a fuel inlet flow to the one or more fuel cell stacks or the current provided to the one or more loads.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: January 28, 2020
    Assignee: BLOOM ENERGY CORPORATION
    Inventors: David Higdon, David Weingaertner, Ali Zargari, Suthitham Kusolasak
  • Patent number: 10533495
    Abstract: This power generation system is provided with: a gas turbine having a compressor, a combustor and a turbine; a first compressed air supply line that supplies compressed air, which has been compressed by the compressor, to the combustor; a solid oxide fuel cell (SOFC) having an air electrode and a fuel electrode; a compressed air supply device capable of generating compressed air; and a second compressed air supply line that supplies compressed air, which has been compressed by the compressed air supply device to the SOFC. The fuel cell can thus be stably operated regardless of the operating state of the gas turbine.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: January 14, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Yukimasa Nakamoto, Kazunori Fujita
  • Patent number: 10505212
    Abstract: A solid oxide fuel cell apparatus 1 has: multiple fuel cell units 16; a module case 8 housing multiple fuel cell units; a heat insulating material 7 disposed to cover the area around the module case 8; a reformer 20 for reforming raw fuel gas using steam, thereby producing fuel gas; a combustion chamber 18 for combusting residual fuel gas and heating the reformer 20; a heat exchanger 23 for exchanging heat between oxidant gas and exhaust gas; and a steam generator 25, disposed within the heat insulating material 7 and on the outside of the module case 8, for exchanging heat between exhaust gas and water immediately after heat is exchanged in the heat exchanger 23, thereby producing steam.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: December 10, 2019
    Assignee: TOTO LTD.
    Inventors: Yousuke Akagi, Fumio Tsuboi, Takeshi Saito, Takuya Matsuo
  • Patent number: 10483562
    Abstract: A fuel cell system includes at least one fuel cell module and at least one relational water seal configured to limit a magnitude of a pressure differential in the fuel cell system in an anode under-pressurization situation in which the second pressure exceeds the first pressure by at least a first predetermined amount. The fuel cell module includes a fuel cell assembly having one or more fuel cells arranged in a stack configuration, an anode inlet manifold, an anode outlet manifold having a first pressure, a cathode inlet manifold having a second pressure, and a cathode outlet manifold.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: November 19, 2019
    Assignee: FUELCELL ENERGY, INC.
    Inventors: Fred C. Jahnke, Matthew Lambrech, Joseph M. Daly
  • Patent number: 10483571
    Abstract: A fuel cell system includes: a plurality of reactor vessels containing a hydrogen storage material; a hydrogen tank storing a hydrogen gas; a fuel cell; a cooling device to dissipate exhaust heat from the reactor vessels or the fuel cell to the outside; a hydrogen gas line that can switch supply routes of the hydrogen gas among the reactor vessels, the hydrogen tank, and the fuel cell; a heat exchange line that can switch circulation routes of a heat exchange medium among the reactor vessels, the fuel cell, and the cooling device; and a control mechanism to switch the supply routes of the hydrogen gas and the circulation routes of the heat exchange medium.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: November 19, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Masakazu Aoki, Takafumi Yamauchi, Yasuki Hirota, Ryuichi Iwata
  • Patent number: 10461341
    Abstract: A fuel cell system includes a hydrodesulfurizer that removes a sulfur compound from raw material and that is heated with heat of exhaust gas flowing in the fuel cell system; a fuel cell that generates power through an electrochemical reaction using fuel and oxidant gas, the fuel being obtained by reforming raw material from which the sulfur compound has been removed by the hydrodesulfurizer; an introduction passage through which the exhaust gas that is to heat the hydrodesulfurizer passes; a first heat exchanger disposed in the introduction passage and that preheats, with heat of the exhaust gas passing through the introduction passage, the oxidant gas to be supplied to the fuel cell; and a second heat exchanger that preheat, with heat of exhaust gas passing through a passage other than the introduction passage, the oxidant gas to be preheated by the first heat exchanger.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: October 29, 2019
    Assignee: PANASONIC CORPORATION
    Inventors: Takashi Kakuwa, Hideki Nakata, Noboru Taniguchi
  • Patent number: 10418819
    Abstract: This power control system (100) includes a power generation apparatus (33) that generates, while a current sensor (40) detects forward power flow equal to or greater than a threshold, power corresponding to a value detected by the current sensor, and a power control apparatus (20) that controls distributed power sources. The power control apparatus is connected to a dummy current output unit capable of supplying the current sensor with dummy current. The control method includes, in a state of constant current flowing to a load from the power generation apparatus and the power control apparatus for a predetermined time, a first step of the power control apparatus increasing the dummy current from the dummy current output unit stepwise, and after the first step, a second step of storing, as the threshold, a minimum of the forward power flow when output voltage of the power generation apparatus rises.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: September 17, 2019
    Assignee: KYOCERA Corporation
    Inventor: Takanobu Nishigai
  • Patent number: 10411277
    Abstract: A gas circuit for a solid oxide fuel cell system may comprise an anode gas segment in which an anode gas exiting from a gas space of an anode of a solid oxide fuel cell flows, a recirculation segment for recirculating at least a part of the anode gas back to a combustion gas processing appliance arranged in the gas circuit and in which fuel is processed to combustion gas for the solid oxide fuel cell, wherein a conveying appliance for recirculating the anode gas, and a division appliance that divides the anode gas into a recirculation stream and a residual gas stream to be discharged from the gas circuit, are arranged in the gas circuit, wherein the conveying appliance is arranged upstream of the division appliance in the anode gas segment. The present disclosure further relates to a solid oxide fuel cell system having a gas circuit.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: September 10, 2019
    Assignee: THYSSENKRUPP MARINE SYSTEMS GMBH
    Inventor: Pedro Nehter
  • Patent number: 10411281
    Abstract: This invention pertains to a thermally-integrated solid oxide fuel cell system, providing for a solid oxide fuel cell stack disposed within a stack hotbox; a heat extractor disposed within the stack hotbox in thermal communication with the fuel cell stack and circumscribed around a full or partial perimeter of the fuel cell stack; a fuel reformer-combustor module disposed within the stack hotbox in thermal communication with the stack and disposed around a full or partial perimeter of the heat extractor; and a manifold fluidly connecting an outlet of the heat extractor to an inlet of a reformer section of the fuel reformer-combustor module.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: September 10, 2019
    Assignee: PRECISION COMBUSTION, INC.
    Inventors: Saurabh Vilekar, Subir Roychoudhury, Christian Junaedi, Richard Mastanduno
  • Patent number: 10389131
    Abstract: A power control apparatus used in a power control system provided with a fuel cell which generates power while a current sensor is detecting forward power flow, a solar cell, and a storage battery comprises a pseudo-output unit configured to generate a pseudo current to be detected by the current sensor; and a controller configured to control the pseudo-output unit. The controller acquires at least one of a charge level of the storage battery and an output value of the solar cell and, based on at least one of the charge level and the output value, adjusts the pseudo current detected by the current sensor to control a power generation amount of the fuel.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: August 20, 2019
    Assignee: KYOCERA Corporation
    Inventor: Yasushi Sasaki
  • Patent number: 10361444
    Abstract: The present application provides combined cycle fuel cell systems that include a fuel cell, such as a solid-oxide fuel cell (SOFC), comprising an anode that generates a tail gas and a cathode that generates cathode exhaust. The system or plant may include adding fuel, such as processed or refined tail gas, to the inlet air stream of a reformer to heat the reformer. The system or plant may include removing water from the tail gas and recycling the removed water into an inlet fuel stream. The inlet air stream may be the cathode exhaust stream of the fuel cell, and the inlet fuel stream may be input hydrocarbon fuel that is directed to the reformer to produce hydrogen-rich reformate. The system or plant may direct some of the processed or refined tail gas to a bottoming cycle.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: July 23, 2019
    Assignee: General Electric Company
    Inventors: Irfan Saif Hussaini, Matthew Joseph Alinger, Andrew Philip Shapiro
  • Patent number: 10355297
    Abstract: A solid oxide fuel cell apparatus 1 has: multiple fuel cell units 16; a module case 8 housing multiple fuel cell units; a heat insulating material 7 disposed to cover the area around the module case 8; a reformer 20 for reforming raw fuel gas using steam, thereby producing fuel gas; a combustion chamber 18 for combusting residual fuel gas and heating the reformer 20; a heat exchanger 23 for exchanging heat between oxidant gas and exhaust gas; and a steam generator 25, disposed within the heat insulating material 7 and on the outside of the module case 8, for exchanging heat between exhaust gas and water immediately after heat is exchanged in the heat exchanger 23, thereby producing steam.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: July 16, 2019
    Assignee: TOTO LTD.
    Inventors: Yousuke Akagi, Fumio Tsuboi, Takeshi Saito, Takuya Matsuo
  • Patent number: 10333154
    Abstract: A fuel cell assembly of one or more fuel cell bundles, wherein each fuel cell bundle comprises an array of elongated tubular fuel cells, comprising: an oxidant supply system; a fuel supply system; a fuel reformation system; and a support structure for integrating as a bundle said elongated tubular fuel cells, said oxidant supply system, said fuel supply system, and said fuel reformation system; a first row of spaced apart, elongated tubular fuel cells; wherein said support structure comprises: a base plate; a plurality of upper insulation end pieces (UIEPs) surrounding a top of the fuel cell assembly to produce a top assembly, wherein each upper insulation end piece has a top surface, a side portion and a beveled portion disposed between the top surface and the side portion to produce a beveled shoulder around the top assembly; a top clamp having a beveled inner surface complementary to the beveled shoulder that interfaces against a plurality of pivot pads disposed on the beveled shoulder when the top clamp i
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: June 25, 2019
    Assignee: Pittsburgh Electric Engines, Inc.
    Inventor: Owen S. Taylor