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7189382 |
Methods for the production of hydrogen
Methods, processes, and apparatuses for the production of hydrogen gases are provided. A catalytic amount of iodine is dissolved in a hydrocarbon fuel source, such as cyclopropane and/or benzene,...
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7186474 |
Nanocomposite compositions for hydrogen storage and methods for supplying hydrogen to fuel cells
A core-shell composition for gas storage, comprising a hollow or porous core and a shell comprising a nanocomposite. The nanocomposite is composed of an exfoliated layered filler dispersed in a...
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7183015 |
Fuel cell stack with circuit
In a direct-methanol fuel cell stack with an at least partial circulation ( 7, 9 ) of the fuel, according to the invention a means is arranged in this circulation for reducing the concentration of...
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7175827 |
Process of producing fuel gas for fuel cell
A process for producing a fuel gas for a fuel cell is provided. The process includes a step of converting hydrocarbons and/or oxygen-containing hydrocarbons to a reformed gas which is composed...
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7172702 |
Method for using water in the processing of fuels for high temperature fuel cells
Wastewater, particularly black water and/or gray water, is used, for example in an aircraft, for processing fuels used in a high temperature fuel cell. For this purpose a liquid hydrocarbon fuel is...
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7172827 |
Fuel cells with integrated humidification and method for humidifying fuel cell process gas
The invention relates to a fuel cell with integrated humidification, comprising a cathode-side or anode-side humidification unit with a heat exchanger, a condensate separator, a capillary tube and...
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7169376 |
Method for making hydrogen using a gold containing water-gas shift catalyst
The present invention relates to a method for making hydrogen comprising contacting in a water-gas shift reaction zone a feed comprising carbon monoxide and water under water-gas shift conditions...
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7169492 |
Method for regulating operation of fuel cell installations controlled according to heat and/or power requirement
Fuel cells are very well suited for the cogeneration of power and heat. An adaptation of the fuel cell power to the thermal requirement of the live load results in faulty adaptations and efficiency...
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7169495 |
Thermally integrated SOFC system
A thermally integrated fuel cell system includes a stack zone, a burner zone and a low temperature zone. The fuel is combined with steam and passed sequentially through a primary reformer and a...
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7169491 |
Flexible system for hydrogen recirculation
A fuel cell system that routes anode effluent from one fuel cell stack to the anode side of another fuel cell stack to consume unused hydrogen in the production of electricity is disclosed. The...
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7163758 |
Integrated plasma fuel cell process
A method for efficiently producing energy, carbon, carbon monoxide, synthetic carbonaceous liquid and gaseous fuels and hydrogen from fossil or biomass fuels with minimal carbon dioxide emissions....
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7160468 |
Cooling system for fuel cell and prevention method for degradation of coolant therefor
A cooling system for a fuel cell system is provided with a circulation system including a circulation pump for circulating coolant, the coolant essentially consisting of water and glycol, a fuel...
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7160638 |
Fuel cell system and method for generating electrical energy using a fuel cell system
A fuel-cell system, particularly a fuel-cell system for a drive system of a motor vehicle, includes an autothermic reformer unit configured to generate hydrogen from a raw material. The hydrogen is...
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7157166 |
Ammonia fuel cell
This invention refers to generating electrical energy comprising an ammonia fuel cell for generating electrical energy including a catalyst being in contact with a high temperature proton...
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7157171 |
Metal-air battery with programmed-timing activation
This invention provides an actively controlled battery with a programmed-timing actuation capability. As a preferred embodiment, the battery comprises (a) a first metal-air cell assembly and at...
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7153599 |
Cooled turbine integrated fuel cell hybrid power plant
A hybrid power plant includes a turbine, a compressor driven by the turbine and a recuperator in flow communication with the compressor. The recuperator is configured to transfer heat from turbine...
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7153604 |
Liquid fuel cell device
A liquid fuel cell device includes a liquid fuel cell body with a fuel electrode, an oxidizer electrode and an electrolyte layer between the electrodes, and a liquid fuel supply system supplying a...
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7153598 |
Methods of operating fuel cells having closed reactant supply systems
A fuel cell system is operated with the fuel supply pressure greater than the oxidant supply pressure to the fuel cell. This gives improved performance particularly when the fuel cell system is...
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7153409 |
Electrochemical cell system and method of operation
In one embodiment, the electrochemical system comprises an electrochemical cell and hydrogen storage in fluid communication with the hydrogen electrode, the hydrogen storage comprising at least one...
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7150928 |
Fuel cell drive system
When a system starts, a fuel-air mixture (rich air-fuel ratio) of fuel and air supplied to a start-up combustor ( 20 ) is ignited by a glow plug ( 40 ), and high temperature gas containing fuel...
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7147947 |
Selective carbon monoxide oxidation catalyst, method of making the same and systems using the same
A CO-selective catalyst comprises a catalytic material, wherein the catalytic material is selected from the group consisting of Pt, Pd, Rh, Ir, Os, Ru, Ta, Zr, Y, Ce, Ni, Cu, and oxides, alloys,...
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7147948 |
Method and apparatus for enhancing catalytic activity
A fuel cell has at least one electrode operatively disposed in the fuel cell, the electrode(s) having a catalytically active surface. A mechanism is provided for substantially maintaining catalysis...
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7144645 |
Operation method for polymer electrolyte fuel cell
An operation method is provided for a polymer electrolyte fuel cell in an optimum operating condition by regulating the cell by a function represented by a gas flow rate and the difference between...
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7141323 |
Method and apparatus for electrochemical compression and expansion of hydrogen in a fuel cell system
The invention relates to fuel cell systems and associated methods of operation where an electrochemical cell such as a fuel cell is used as an electrochemical hydrogen separator to separate...
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7141324 |
Hydrogen passivation shut down system for a fuel cell power plant
The invention is a hydrogen passivation shut down system for a fuel cell power plant ( 10 ). An anode flow path ( 24 ) is in fluid communication with an anode catalyst ( 14 ) for directing hydrogen...
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7141322 |
Alcohol fueled direct oxidation fuel cells
A fuel cell using a neat alcohol such as neat 2-propanol, as its fuel is described. The fuel that is purposely not mixed with any amount of water is oxidized directly at the fuel cell anode. The...
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7138197 |
Method of operating a fuel cell power plant
A fuel cell system extracts water from the effluent of a fuel cell for supply to other components of the fuel cell system that require water. A preferred embodiment is a fuel cell system, for the...
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7132183 |
Process and system for converting carbonaceous feedstocks into energy without greenhouse gas emissions
The process and system of the invention converts carbonaceous feedstock such as coal, hydrocarbon oil, natural gas, petroleum coke, oil shale, carbonaceous-containing waste oil,...
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7132180 |
Alkyl sorbitan emulsion compositions for fuel cell reformer start-up
The present invention relates to emulsion compositions for starting a reformer of a fuel cell system. In particular, the invention includes emulsion compositions comprising hydrocarbon fuel, water...
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7132182 |
Method and apparatus for electrochemical compression and expansion of hydrogen in a fuel cell system
The invention relates to fuel cell systems and associated methods of operation where an electrochemical cell such as a fuel cell is used as an electrochemical hydrogen separator to separate...
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7128992 |
Dual pump fuel cell temperature management system
The outflow of coolers or water transport plates of a fuel cell stack ( 15 ) is fed to the inlet of a gas/liquid separator ( 12 ), the liquid output of which is connected through a primary pump (...
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7125618 |
Hydrogen supply system for a fuel cell
A hydrogen supply system is provided for a fuel cell that can increase the cooling water temperature without hydrogen consumption at ignition by increasing the temperature of the cooling water by...
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7122257 |
Fuel cell reactant supply
A fuel cell system in accordance with a present invention includes a fuel supply apparatus that supplies at least one reactant in a pulse.
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7122261 |
Metal hydride fuel storage and method thereof
Disclosed herein is a metal hydride fuel storage cartridge having integrated resistive heaters that can be used in conjunction with fuel cells such as MEMS-based fuel cells. The cartridge is...
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7118606 |
Fossil fuel combined cycle power system
A system for converting fuel energy to electricity includes a reformer for converting a higher molecular weight gas into at least one lower molecular weight gas, at least one turbine to produce...
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7118818 |
Solid oxide fuel cell system
A system comprising a solid oxide fuel cell stack and a gas turbine engine. The stack comprises a plurality of solid oxide fuel cells, each fuel cell comprises an electrolyte, an anode and a...
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7108930 |
Fuel cells
In one aspect, the invention features a method including sorbing carbon monoxide to a catalyst layer of a fuel cell, and oxidizing the carbon monoxide. The method can be used to pre-condition or...
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7108933 |
Thermally efficient hydrogen storage system
Thermally efficient hydrogen storage systems are disclosed. An apparatus may include an exothermic hydrogen generator, and an endothermic hydrogen generator. In one aspect, the endothermic hydrogen...
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7108932 |
Fuel cell system
A fuel cell system includes a fuel cell ( 9 ), an exhaust gas circulation passage ( 10 ) which circulates part of the exhaust gas from the fuel cell ( 9 ) back to the fuel cell ( 9 ), a fuel...
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7101531 |
Fuel reforming system and control therefor
A fuel reforming system has a reformer ( 4 ) for reforming a fuel to produce a reformate gas; a shift converter ( 5 ) for reacting carbon monoxide (CO) contained in a reformate gas with water to...
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7094487 |
Solid composition, hydrogen generating method, and proton exchange membrane fuel cell
The invention relates to a solid composition which can decompose with the generation of hydrogen according to a self-sustaining combustion reaction after initiation of this reaction by an...
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7087332 |
Power slope targeting for DC generators
A simple feedback control loop, in conjunction with an improved maximum power point tracking intermediate controller, can be used ensure efficient operation of a power generator. The improved...
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7087333 |
Hydrogen recirculation without a pump
A fuel cell system that routes anode effluent from one fuel cell stack to the anode side of another fuel cell stack to consume unused hydrogen in the production of electricity is disclosed. The...
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7087331 |
Energy efficient gas separation for fuel cells
An electrical current generating system is disclosed that includes a fuel cell operating at a temperature of at least about 250° C. (for example, a molten carbonate fuel cell or a solid oxide fuel...
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7083874 |
Fuel cell power generation system
A fuel cell power generation system comprises a hydrogen reservoir that can occlude non-used hydrogen discharged from a fuel cell, and release the same. The hydrogen reservoir has a first storage...
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7081143 |
Alkoxylated triazine emulsion compositions for fuel cell reformer start-up
The present invention relates to emulsion compositions for starting a reformer of a fuel cell system. In particular, the invention includes emulsion compositions comprising hydrocarbon fuel, water...
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7081312 |
Multiple stage combustion process to maintain a controllable reformation temperature profile
A reaction vessel that integrates and balances an endothermic process with at least one exothermic process of the fuel cell system. Preferably the exothermic process is conducted in stages to...
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7078117 |
Method for humidifying a reactant stream for a fuel cell
A membrane exchange humidifier employs a water permeable membrane comprising a microporous polymer and a hydrophilic additive. In operation, the membrane preferably has favorable water transmission...
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7078118 |
Performance enhancing break-in method for a PEM fuel cell
A performance enhancing break-in method for a proton exchange membrane (“PEM”) fuel cell ( 12 ) includes cycling potentials of an anode electrode ( 14 ) and a cathode electrode ( 16 ) from a...
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7067211 |
Cogeneration system for a fuel cell
A fuel cell system and process using an organic Rankine cycle to produce shaft work to operate a fuel cell system component such as an air compressor. The air compressor delivers compressed air to...
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