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Class 204/258 - Gas


Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Electrolytic cells in which the material fed or withdrawn
No. of patents: 286
Last issue date: 11/09/2010


1                
NumberTitleIssue Date
7828941Distributing element for electrolyte percolation electrochemical cell
A distributing element for an electrolyte percolating-type electrochemical cell comprises an external feeding manifold and an assembly formed by a gas diffusion electrode, a percolator and optionally an on-exchange membrane. The element is particularly suitable for ...
11/09/2010
7785450“On-site” carbon dioxide generator
Systems are described for the “on-site” production of substantial amounts of carbon dioxide and hydrogen. The systems include a stack of multiple electrochemical cells, which decompose organic carboxylated compounds into CO2 and H2 without ...
08/31/2010
7604720Process for the on-site production of chlorine and high strength sodium hypochlorite
The present invention relates to a novel economical on-site electrochemical based membrane cell based process with the capability of producing high strength sodium hypochlorite and/or elemental chlorine gas in any ratio as required by the needs of a water or wastewa...
10/20/2009
7553399Hydrogen production apparatus with electrolyte of varying thicknesses
A hydrogen production apparatus comprises a solid polymer electrolyte membrane, a pair of rigid power feeders, separators, pressing means for pressing the separators and the power feeders against the solid polymer electrolyte membrane, a pressure contact surface pro...
06/30/2009
7354506Diaphragm cell for chlor-alkali production with increased electrode surface and method of manufacture thereof
The invention relates to a diaphragm electrolytic cell, for the production of chlorine and caustic soda having superimposed modules, and a method for increasing the electrodic surface of a diaphragm electrolytic cell constituted by a module of interdigitated anodes ...
04/08/2008
7351316Water electrolysis method and device for determination of hydrogen and oxygen stable isotopic composition
Water electrolysis device determining stable isotopic composition of water and a water electrolysis method for stable isotopic composition of water capable of analyzing many samples easily, safely and at low cost in very short time, and rapidly analyzing 17
04/01/2008
7351317Electrolytic cell comprising an interior trough
The invention relates to an electrolysis device for halogen gas production from an aqueous alkali halide solution in several plate-type electrolysis cells stacked and arranged side by side, with electrical contacts, each of the cells with a housing consisting of two...
04/01/2008
7341654Mediated hydrohalic acid electrolysis
Chlorine is produced by electrolysis of aqueous HCl, in a membrane electrolyzer, using cathodic mediators such as Fe(III) and/or Cu(II) chlorides and a non-catalysed 3-dimensional cathode, with the real surface area at least ten times higher than its projected area....
03/11/2008
7335284Modular electrochemical cell
A modular electrochemical cell having two interchangeable assemblies each with a support structure defining a cylindrical recess and having a fitting for connecting a pipe to the assembly. A disc-shaped electrode is arranged inside each recess and the assemblies are...
02/26/2008
7332063Structure for an electrochemical reactor of the filter-press type
A structural component for electrolytic cells of an electrochemical reactor of the filter-press type, comprising a frame (6) supporting its corresponding functional element (7, 7a), a bipolar sheet or a diaphragm, respectively. ...
02/19/2008
7326480Fuel cell power system and method of controlling a fuel cell power system
A fuel cell power system includes a fuel cell which has an optimal voltage; an energy storage device having a nominal voltage substantially similar to the optimal voltage of the fuel cell; and an electrical switch that, in operation, selectively electrically couples...
02/05/2008
7323090Bipolar zero-gap type electrolytic cell
A bipolar zero-gap electrolytic cell comprising an anode comprising an anode substrate constituted of a titanium expanded metal or titanium metal net of 25 to 70% opening ratio, which anode after coating the substrate with a catalyst has a surface of 5 to 50 μm une...
01/29/2008
7323089Bonded membrane-electrode assembly for electrolysis of water and water electrolyzer using the same
The present invention provides a bonded membrane-electrode assembly for electrolysis of water, which enables the generation of hydrogen capable of being used as a fuel for a fuel cell by electrolyzing water, and a water electrolyzer constructed using the bonded memb...
01/29/2008
7314509Gas liquid phase separator with improved pressure control
A gas/liquid phase separator includes a fluid inlet, a vapor outlet, a liquid outlet, and first and second valves disposed in fluid communication with the liquid outlet. Both valves are controllable in response to a fluid level in the gas/liquid phase separator. Bot...
01/01/2008
7314539Pressure electrolyzer and method for operating one such electrolyzer
The invention discloses a pressure electrolyzer comprising a pressure vessel (2) and an electrolytic-cell block (3) arranged in the pressure vessel (2) and containing a plurality of electrolytic cells (4) combined in the form of a stack. ...
01/01/2008
7285192Pressure electrolyzer and method for switching off a pressure electrolyzer
A pressure electrolyzer having a pressure reservoir, an electrolytic cell block containing a number of electrolytic cells and positioned in the pressure reservoir, the electrolytic cells each containing anodes and cathodes, and an electrolyte circulatory system for ...
10/23/2007
7271334Photocatalytic film for the cleavage of water into hydrogen and oxygen
The Photocatalytic film of semiconducting iron oxide (Fe2O3), contains an n-dopant, or a mixture of n-dopants, or a p-dopant or a mixture of p-dopants. Electrode consists of a substrate, with one or more films or photocatalytic arrangements of ...
09/18/2007
7232507High volumetric efficiency electrochemical cell design for treatment of low concentrations of contaminants in low conductivity water
An electrochemical cell design is disclosed for the particular application of the electrochemical treatment of contaminants in water. The cell is designed to allow the treatment of low concentrations of contaminants in low conductivity water efficiently, and to be s...
06/19/2007
7175745Method of manufacturing electrolyzer unit, and method and system for welding electrolyzer unit and electrolyzer unit rib
The invention has an object of facilitating the detection of defective welds and improving the efficiency of manufacturing electrolyzer units. A a method of manufacturing an electrolyzer unit comprises a step of arranging a partition member on a front surface of a c...
02/13/2007
7163615Method of treating substance to be degraded and its apparatus
There is provided a method of treating a substance to be degraded comprising the steps of: degrading the substance to produce a degraded product; contacting the product obtained in the degrading step with a liquid; and entrapping a component of the product not trapp...
01/16/2007
7163665Apparatus for decomposing gaseous aliphatic hydrocarbon halide compounds
A method for decomposing a gaseous aliphatic hydrocarbon halide compound more simply is provided. The method includes the steps of mixing the gaseous aliphatic hydrocarbon halide compound and a chlorine gas-containing gas and emitting light to a mixture gas of the g...
01/16/2007
7160434Therapeutic electrolysis device
An electrolysis device is provided. The electrolysis device includes an ionizer unit having first and second plate assemblies that each provide a different surface area that is contacted by water when the unit is in use. The plate assemblies may each provide a diffe...
01/09/2007
7160472Treatment of a waste stream through production and utilization of oxyhydrogen gas
Methods and systems for treating a waste stream in a waste treatment system involve performing a unit process of the waste treatment system by contacting the waste stream with oxyhydrogen-rich gas generated on-site by an oxyhydrogen gas generator that implements wat...
01/09/2007
7144649Interconnect for solid oxide fuel cells
A fuel cell stack includes a plurality of fuel cells each having an anode layer, an electrolyte layer, and a cathode layer, the fuel cells each having a first effective thermal expansion coefficient; a plurality of bipolar plates positioned between adjacent fuel cel...
12/05/2006
7143722Electrolysis cell and internal combustion engine kit comprising the same
A system for producing one or more gases for enhancing combustion in an internal combustion engine, the engine having an intake, the system comprising: an electrolysis cell, for generating one or more combustion enhancing gases under pressure; a gas conduit, for con...
12/05/2006
7144483Method and an electrowinning cell for production of metal
The present invention relates to a method for production of molten aluminium by electrolysis of an aluminous ore, preferably alumina, in a molten salt mixture, preferably a sodium fluoride—aluminium fluoride-based electrolyte. The invention describes an electrolys...
12/05/2006
7122027Implantable medical device with controllable gaseous agent release system
The present invention generally relates to medical devices. Specifically, the invention pertains to implantable medical devices that produces gaseous agents from precursors and releases them into the body. More specifically, the invention provides for the controlled...
10/17/2006
7122264Solid electrolyte type fuel battery
A solid electrolyte type fuel battery in which a material for an interconnector for connecting cells of the solid electrolyte type fuel battery comprises a matrix of the general formula MTiO3, where M is an alkaline earth metal element such as Mg, Ca, Sr ...
10/17/2006
7112380Method and apparatus for the storage and redistribution of electrical energy
A method of storage and redistribution of electrical energy comprising the steps of: producing hydrogen and oxygen through water electrolysis in an electrolyzer (1) operating under pressure; collecting the hydrogen and oxygen so obtained in respective pressur...
09/26/2006
7090752Fluorine separation and generation device
A process and apparatus for the electrolytic separation of fluorine from a mixture of gases is disclosed. Also described is the process and apparatus for the generation of fluorine from fluorine/fluoride containing solids, liquids or gases. ...
08/15/2006
7083708Oxygen-consuming chlor alkali cell configured to minimize peroxide formation
Oxygen-consuming zero gap chlor-alkali cell was configured to minimize peroxide formation. The cell included an ion-exchange membrane that divided the cell into an anode chamber including an anode and a cathode chamber including an oxygen gas diffusion cathode. The ...
08/01/2006
7045042Gas-collecting electrets as magneto-electrolysis cell components
A tank-type water electrolysis apparatus with unipolar electrodes arrangement and wherein imposed magnetic fields enhance electrolyte solution circulation, further enhanced in apparatus operation by use of immersed electrets providing partitioning structure between ...
05/16/2006
7029724Composition and method for forming doped A-site deficient thin-film manganate layers on a substrate
A method of forming an A site deficient thin film manganate material on a substrate from corresponding precursor(s), comprising liquid delivery and flash vaporization thereof to yield a precursor vapor, and transporting the precursor vapor to a chemical vapor deposi...
04/18/2006
7018514Method and apparatus for processing substances to be decomposed
A method for processing substances to be degraded is provided. The method includes a decomposing step in which a mixed gas containing chlorine and the substances to be degraded is irradiated with light to decompose the substances to be degraded, a contact step in wh...
03/28/2006
6968028Nuclear power station having a gas-injection device for a coolant
A nuclear power station includes a feedwater/steam circuit having a condensate-purification device and a feedwater pump connected upstream of a reactor pressure vessel. A branch line has a gas-injection device for introducing hydrogen into a coolant to ensure especi...
11/22/2005
6964739Device and method for generating and applying ozonated water
The present invention is a device and method for ozonating water and applying the ozonated water to surfaces for cleaning purposes. The instant invention allows a user to transform water into a liquid with more robust cleaning properties conveniently and in a short ...
11/15/2005
6948918Membrane pump with stretchable pump membrane
The invention relates to membrane pumps for delivering liquids. More specifically, a pump is provided having a pump housing with a pump cavity formed between first and second wall portions thereof, and an pump membrane pump membrane having first and second membrane ...
09/27/2005
6939449Water electrolyzer and system
An electrolyzer for generating hydrogen by the electrolytic dissociation of water employs anode and cathode half-cells, separated by a planar polymer-based solid electrolyte, and includes a water reservoir for independently maintaining a desired level of water in th...
09/06/2005
6936143Tandem cell for water cleavage by visible light
A tandem cell or photoelectrochemical system for the cleavage of water to hydrogen and oxygen by visible light has two superimposed photocells, both cells being connected electrically. The photoactive material in the top cell is a semiconducting oxide placed in cont...
08/30/2005
6924057Electrochemical fuel cell with an electrode having an in-plane nonuniform structure
In an improved electrochemical fuel cell assembly, a reactant flow path extends substantially linearly across the electrochemically active area of an electrode. The electrode has an in-plane nonuniform structure in its electrochemically active area as the active are...
08/02/2005
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