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6946113 |
Method for processing fluid flows in a micro component reformer system
A method for processing separate fluid flows in a micro component system for the production of hydrogen gas used in fuel cells in which a first fluid flow is directed to micro channels formed on...
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6942940 |
System for generating electricity
A system for generating electricity which includes an internal manifold fuel cell stack having an anode fuel gas duct, an anode exhaust gas duct, a cathode air duct and a cathode exhaust duct and a...
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6939634 |
Fuel cell system having two reformer units for catalytic decomposition
A fuel cell system including at least two reformer units for catalytic decomposing a starting material stream into at least one intermediate product and one hydrogen-rich fuel stream of a fuel cell...
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6936363 |
Ammonia cracker for production of hydrogen
This method for hydrogen production from ammonia is based on the catalytic dissociation of gaseous ammonia in a cracker. A catalytic fixed bed is used. The ammonia cracker supplies a fuel cell (for...
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6926748 |
Staged lean combustion for rapid start of a fuel processor
A fuel processor for rapidly achieving operating temperature during startup. The fuel processor includes a reformer, a shift reactor, and a preferential oxidation reactor is provided for deriving...
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6926987 |
Fuel cell system and method for operating the same
A fuel cell system and associated method allows for continuous operation of the fuel cell system with fuel recirculation, without the necessity for periodic purging. A portion of the anode exhaust...
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6924049 |
Electrolysis fuel cell energy plant
A fuel cell device for providing electrical energy, the fuel cell device comprising a first storage tank for storing a hydrogen-based fuel, a second storage tank for storing an oxidant, a fuel cell...
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6921595 |
Joint-cycle high-efficiency fuel cell system with power generating turbine
The efficiency of a combination reformer/fuel cell system is significantly improved by recapturing the energy value of heat generated in the fuel cell and producing additional power. The cooling...
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6916562 |
Hydrocarbon hydroconversion process for the production of hydrogen, hydroprocessed hydrocarbons and electricity
A method for treating hydrocarbonaceous feedstock to produce hydrogen, electricity, and one or more liquid hydrocarbon product, the method comprising: (a) subjecting hydrocarbonaceous feedstock to...
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6916563 |
Discharged fuel diluter and discharged fuel dilution-type fuel cell system
A discharged fuel diluter includes: a retention region with a predetermined volume, into which a fuel discharged from a fuel cell is retained at the time of purging; a dilution region with a...
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6916564 |
High-efficiency fuel cell power system with power generating expander
A hydrogen fuel cell power system having improved efficiency comprises a fuel cell, a source of hydrogen gas, a compressor for creating a pressurized air stream, and a liquid supply which is heated...
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6913854 |
Method and apparatus for generating power from voltage gradients at sediment-water interfaces
A method and apparatus for generating power from voltage gradients at sediment-water interfaces or within stratified euxinic water-columns is provided. Natural voltage gradients typically exist at...
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6913844 |
Method for humidifying reactant gases for use in a fuel cell
A system for humidifying a gas, the system including a housing defining a humidification chamber through which a gas travels, and a humidification assembly adjacent to the housing. The...
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6913738 |
System for removing carbon monoxide and method for removing carbon monoxide
The object of the present invention is to obtain a carbon-monoxide removing technique capable of very effectively reducing/removing carbon monoxide present at one thousand of ppm to several % in a...
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6911274 |
Fuel cell system
A fuel cell system is described which comprises a power source and a fuel storage unit. A flowable fuel is contained with the fuel storage unit. A first flow path delivers fuel from the fuel...
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6908699 |
Fuel cell
The present invention is a method of generating electrical energy from chemically generated hydrogen and oxygen including the steps of establishing a first reaction compartment, generating hydrogen...
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6908702 |
Fuel cell for airship power generation and heating
A neutrally buoyant airship, such as a blimp, contains a lifting body which allows the airship to remain neutrally buoyant in air and a fuel cell located in the airship. A method of generating...
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6908700 |
Fuel cell system for vehicle
A vehicle fuel cell system according to this invention comprises a controller ( 20 ) that compares a input running distance to a predetermined distance. When the input running distance is less than...
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6905791 |
Fuel cell system and method of operation in which temperatures in the freezing range of water can occur
A method and apparatus for the operation of a fuel cell system to avoid the freezing of water resident in one or more fuel cells during periods of system inactivity. Each fuel cell includes at...
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6896984 |
Methods for reducing mass and volume of a fuel processor
A method for designing a fuel processor having an optimized size (i.e., volume and mass) for use in a fuel cell system which provides electrical power in a plurality of power ranges. The method...
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6893755 |
Method and system for controlling the operation of a hydrogen generator and a fuel cell
This application relates to a method and system for controlling the supply of fuel to a dead-ended hydrogen fuel cell. The invention may be utilized, for example, to more efficiently integrate the...
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6893754 |
Fuel cell system with device for water recovery and method of operating such a system
A fuel cell method and apparatus includes upstream reforming of hydrocarbons and/or alcohols, with water contained in the exhaust air stream of the fuel cell system being recovered. An absorption...
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6890490 |
Hydrogen absorbing tank apparatus
A gas compressor and a bypass that bypasses the gas compressor are provided between a hydrogen absorbing tank and a hydrogen gas consumer device such as, for example, a fuel cell. When the hydrogen...
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6890671 |
Fuel mixing control for fuel cell power plants operating on multiple fuels
Fuel mixing control arrangements are provided for fuel cell power plants ( 10 ) operating on multiple fuels ( 22, 24, 26 ). A fuel delivery system ( 16 ) supplies hydrogen-rich fuel ( 20 ) to the...
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6887609 |
Fuel cell system and method for operating the fuel cell system
A fuel cell system and method of operation in which the fuel cell system has a fuel cell unit with anode and cathode, a media flow path for supplying substantially pure hydrogen to the anode, a...
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6887603 |
Raw fuel vaporizing apparatus, method of vaporizing raw fuel, and fuel cell system equipped with raw fuel vaporizing apparatus
A raw fuel vaporizing apparatus comprising: a vaporizer for vaporizing liquid raw fuel; a raw fuel introducing device for introducing the liquid raw fuel into the vaporizer; a catalyst combustor...
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6887598 |
Control system and method for starting a frozen fuel cell
A method for starting a frozen fuel cell stack includes discontinuing reactant humidification before shutting down the fuel cell stack. The anode and cathode are purged with the dry reactants. The...
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6887605 |
System and method for optimizing fuel cell purge cycles
A system for optimizing the purge cycle of a fuel cell stack responsive to the performance of the fuel cell. The system includes a controller that measures a process parameter indicative of the...
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6887455 |
Catalytic generation of hydrogen
A process for the catalytic generation of hydrogen by the self-sustaining combination of partial oxidation and steam reforming of a hydrocarbon comprises containing a mixture of the hydrocarbon, an...
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6887604 |
Fuel cell power system
A fuel cell power system practical for use in a vehicle includes a fuel cell, a first hydrogen storage vessel having a first hydrogen absorbing material storing and releasing hydrogen, a catalytic...
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6887602 |
Rapid response fuel cell system
Method and apparatus for supplying extra/booster steam and/or fuel vapor to the fuel processor of a fuel cell system during surges in power demanded from the fuel cell. Hot water and/or liquid fuel...
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6884531 |
Liquid hydrocarbon based fuels for fuel cell on-board reformers
Naphtha-based fuels which have less than 1 ppm of sulfur and in excess of 15%, by weight, of hydrogen and an aromatics content of less than 1%, by weight, have been found to be useful as a fuel...
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6884533 |
Utilization based power plant control system
Systems and methods of controlling fuel cell electric power generation systems. In one embodiment, the control system comprises a current detector for measuring an output current of the fuel cell...
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6884530 |
Method of improving the performance of a direct feed fuel cell
The performance of a direct feed fuel cell such as, for example, a direct methanol fuel cell, with an anode having a CO-tolerant catalyst, such as a Pt—Ru catalyst, is improved by periodically...
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6881510 |
Method for resorting characteristics of polymer electrolyte fuel cell
The present invention restores the performance of a fuel cell by: operating the cell in a loaded current mode different from that of a normal operation for a predetermined time; supplying an...
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6878471 |
Process for the regeneration of reforming catalysts
The present invention relates to methods for the regeneration of catalytic reactors. In particular it relates to methods for regenerating a fuel-processing catalyst while it is still being used to...
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6878362 |
Fuel processor apparatus and method based on autothermal cyclic reforming
In a fuel processor based on autothermal cyclic reforming process, the fuel processor having a reformer, the reformer having two reactors with integrated heat exchangers, the two reactors cycling...
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6878473 |
Fuel cell power generating apparatus, and operating method and combined battery of fuel cell power generating apparatus
A fuel cell power generating apparatus comprises an electromotive section, a container, a methanol aqueous solution recovery mechanism, and flow rate controller controlling the flow rate J m ...
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6875533 |
Fuel cell unit and composite block of fuel cells
In order to provide a fuel cell unit, comprising a housing which limits at least one gas chamber and has a gas opening in a first housing wall and a gas opening in a second housing wall located...
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6872481 |
Process for utilization of a cold-flame vaporizer in auto-thermal reforming of liquid fuel
A fuel processing sub-system is provided and includes a cold-flame vaporizer in fluid communication with an auto-thermal reformer. The cold-flame vaporizer operates within a temperature range of...
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6872482 |
Low-temperature fuel cell assembly and method for the operation thereof
A low-temperature fuel cell assembly including of a low-temperature fuel cell ( 1 ) in combination with a sweeping gas circuit ( 2 ) for at least the anode part thereof. The fuel gas is prepared by...
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6866836 |
Method of generating hydrogen from borohydrides and water
A method is provided that generates hydrogen to power a hydrogen consuming device. Hydrogen is stored on-board a vehicle in dry lithium and/or sodium borohydride particles. Upon demand from the...
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6866951 |
Compact precooler and cooling process
In a hydrocarbon fueled reformed gas fuel cell system having a rated power, a process for cooling reformed gas from a fuel processor prior to feeding the reformed gas to a shift converter includes...
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6864002 |
Fuel cell system and method for producing electrical energy
A fuel cell system has a fuel cell disposed within a fuel cell enclosure for electrochemically combining externally supplied oxygen with hydrogen to produce direct-current electrical energy and...
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6864005 |
Membrane exchange humidifier 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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6861167 |
Fuel cell resuscitation method and apparatus
A fuel cell system includes fuel cells forming a fuel cell stack, having a fuel passage and an oxidant passage. A purge valve is coupled to the fuel passage to exhaust contaminants, and a...
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6858337 |
Reversible fuel cell power plant
The invention is a reversible fuel cell power plant ( 10 ). A reactant switch-over assembly ( 48 ) is secured between a reducing fluid fuel source ( 30 ), an oxygen containing oxidant source ( 24...
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6849352 |
Fuel cell system and method of operating a fuel cell system
A fuel cell system comprising a plurality of fuel cells, in particular in the form of low temperature fuel cells, which are assembled into a stack, the system having a cathode side with a cathode...
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6846584 |
Process for generating electricity with a hydrogen fuel cell
The object of the invention is the coupling of a hydrogen fuel cell to an enzymatic process for the production of electricity and the transformation and sequestration of CO 2 . Gaseous CO 2 ...
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6846585 |
Method for quick start-up of a fuel processing system using controlled staged oxidation
The present invention relates to controlled staged rich combustion throughout a fuel processing system in order to improve start up performance. Multiple stages of air injection are used to burn...
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