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937
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Updated on
05/04/2026 [07:02:00]
Results 750 to 775 of 937
Absstract of: AU2024357053A1
Provided is a control device including: a step in which a current command value regarding current to be applied to an electrolytic stack is determined; and a step in which pure-water adjustment amount command values for adjusting the pressure or/and flow rate of water to be supplied to the electrolytic stack are determined on the basis of the current command value. The control device further includes a step A in which, when the current command value is changed from a first current command value (current command value c1) to a second current command value (current command value c2), which is a different value, and the pure-water adjustment amount command value is changed from a first pure-water adjustment amount command value (pure-water adjustment amount command value w1) to a second pure-water adjustment amount command value (pure-water adjustment amount command value w2), which is a different value, measured values of the pressure or/and flow rate are caused to reach the second pure-water adjustment amount command value from the first pure-water adjustment amount command value before a measured value of current applied from a power converter to the electrolytic stack reaches the second current command value from the first current command value.
Absstract of: AU2024396946A1
According to exemplary embodiments of the present invention, a hydrogen production system is provided. The present invention comprises: a hydrogen generation unit configured to receive reduced iron from a reduced iron generation unit configured to generate reduced iron by reducing powdered iron ore in a reducing gas atmosphere, and to generate hydrogen from ammonia by bringing the reduced iron into contact with the ammonia; and a regeneration unit configured to receive the reduced iron from the hydrogen generation unit and to regenerate the reduced iron by reducing the reduced iron in a hydrogen gas atmosphere. According to other exemplary embodiments of the present invention, a method for producing hydrogen is provided.
Absstract of: AU2024398260A1
Provided according to exemplary embodiments of the present invention is an ammonia decomposition system capable of minimizing the generation of iron nitride, which is a by-product.
Absstract of: AU2024300028A1
The compression arrangement comprises a hydrogen compressor and a return circuit having an inlet, which is fluidly coupled with the discharge side of the centrifugal compressor, and an outlet, which is fluidly coupled with the suction side of the centrifugal compressor. A head-loss control valve is positioned in the return circuit. The head-loss control valve is adapted to generate a controlled head loss in the return circuit when the compressor operates at a flowrate below the surge control line.
Absstract of: US20260043149A1
The following disclosure relates to an electrochemical cell or system that is configured to operate with forced water flow on the cathode side of the cell and forced water flow on the anode side of the cell. The system may include at least one electrochemical cell having a cathode, an anode, and a membrane separating the cathode and the anode. The system has the forced water flow on the cathode side of the cell to be principally in opposite direction of the forced water flow on the anode side of the cell.
Absstract of: US20260043151A1
A method of operating an electrolyzer system includes providing steam to a stack of electrolyzer cells through a steam filter, electrolyzing the steam into a hydrogen product in the stack of electrolyzer cells, receiving data from one or more sensors indicating that the filter requires cleaning or replacement, and cleaning or replacing the steam filter in response to the receiving the data from the one or more sensors indicating that the steam filter requires cleaning or replacement.
Absstract of: US20260043160A1
This control device is for a hydrogen production facility and comprises: a plurality of electrolysis cells for electrolyzing water or steam; and a plurality of rectifiers for supplying DC power to each of the plurality of electrolysis cells. The control device is provided with: a degradation coefficient acquisition unit configured to acquire a plurality of degradation coefficients indicating the degrees of deterioration of the respective electrolysis cells, an individual necessary current calculation unit configured to calculate, on the basis of a total necessary current corresponding to a hydrogen generation volume required for the hydrogen production facility and the plurality of degradation coefficients, a plurality of individual necessary currents indicating necessary currents required for the electrolysis cells; and a control unit configured to control the respective rectifiers on the basis of the plurality of individual necessary currents.
Absstract of: US20260043159A1
A solid oxide electrolyzer cell (SOEC) includes a solid oxide electrolyte, a fuel-side electrode disposed on a fuel side of the electrolyte, and an air-side electrode disposed on an air side of the electrolyte. The air-side electrode includes a barrier layer disposed on the air side of the electrolyte and including a first doped ceria material, and a functional layer disposed on the barrier layer and including an electrically conductive material and a second doped ceria material.
Absstract of: WO2025012271A1
The invention relates to a plant for preparing H2 by catalytically decomposing NH3. The plant according to the invention can be operated in a start-up mode in order to heat apparatuses of the plant to an increased operating temperature using a heat-transfer medium, e.g. following interruption of a continuous operation of the plant due to maintenance work. After heating to the operating temperature, the plant according to the invention can be operated in a production mode for continuous production of H2. The invention also relates to a method for starting up a plant for preparing H2 by catalytically decomposing NH3.
Absstract of: JP2026022181A
【課題】本開示は、新たな直接空気電解法を提供することを目的とし、好ましくは、強塩基性や強酸性の溶液、及び、貴金属電極触媒を用いる必要がない、直接空気電解法を提供することを目的とする。【解決手段】アノードと、前記アノードに対向するカソードと、細孔を有する基材と、吸水性化合物と、を備え、前記基材は、前記アノードと前記カソードとの間に配置され、前記吸水性化合物は、前記基材の細孔中に存在する、電解セル。【選択図】なし
Absstract of: EP4691967A1
Die Erfindung betrifft ein Katalysatorsystem zur Spaltung von Ammoniak in Wasserstoff und Stickstoff, umfassend mindestens Rohr mit einer zentral durch das innere des Rohrs verlaufenden Achse, wobei in dem Rohr mindestens zwei koaxial angeordnete Bereiche, in Form von einem ersten Bereich entlang der zentralen Achse und mindestens einem den ersten Bereich umgebenden weiteren Bereich, ausgebildet sind, und wobei der erste Bereich ein erstes Katalysatormaterial und der mindestens eine weitere Bereich mindestens ein weiteres Katalysatormaterial enthält, dadurch gekennzeichnet, dass a) das erste Katalysatormaterial mindestens ein Metall aufweist, das ausgewählt ist aus der Gruppe bestehend aus Edelmetallen und Nicht-Edelmetalle, und b) das mindestens eine weitere Katalysatormaterial mindestens ein Nicht-Edelmetall aufweist. Das erste und das mindestens eine weitere Katalysatormaterial sind verschieden.
Absstract of: CN121359262A
The invention relates to a method for producing an assembly for an electrochemical cell, wherein the assembly comprises at least the following structural components: a first plate (10; 10 '), a proton exchange membrane (42), a first electrode (31) arranged between the first plate and the proton exchange membrane, and a first gas diffusion layer (21) arranged between the first plate and the first electrode, having the following steps: A) providing a substrate having only a part of the structural component, in particular the first plate and/or the first gas diffusion layer; b) assembling the components, wherein the assembling comprises the step of adding residual structural components; or the following steps: a) providing a substrate distinct from the structural component; b) assembling the components, wherein the assembling comprises adding structural components; wherein the bezel is formed by applying one or more layers of a molding material (70-72) to the provided substrate, the strength of the molding material being increased after said application, at least one layer of the molding material forming the bezel or at least one surrounding section of the bezel being applied prior to step B) or b). The invention also relates to an electrochemical cell, in particular a fuel cell or an electrolytic cell, to a cell stack having a cell of this type, and to a method and a facility for producing an assembly for a cell or a cell stack of this type.
Absstract of: EP4692424A1
It is an object of the present invention to provide a steam electrolysis device and a steam electrolysis method, which have high energy efficiency. The present invention relates to: a steam electrolysis device, comprising an anode electrode chamber, a cathode electrode chamber, and an ion conductor disposed between these electrode chambers, wherein steam in an amount more than twice the amount of hydrogen generated is supplied to at least one selected from the anode electrode chamber and the cathode electrode chamber, and 50% or less of the supplied steam is electrolyzed; and a steam electrolysis method using the steam electrolysis device.
Absstract of: EP4691992A1
Provided is a method for producing a highly active oxygen carrier at low cost, and a method for producing hydrogen and an apparatus for producing hydrogen using the highly active oxygen carrier.SolutionA method for producing an oxygen carrier of the present invention is a method for producing an oxygen carrier formed of an activated iron titanate containing an alkali titanate and an iron oxide by calcining a mixture of iron titanate particles and an alkali component. The mixture of the iron titanate particles and the alkali component is prepared by any of: physically mixing the iron titanate particles and an alkaline compound; and spraying an aqueous solution of the alkaline compound to the iron titanate particles or impregnating the iron titanate particles with the aqueous solution of the alkaline compound and then drying the sprayed or impregnated iron titanate particles.
Absstract of: EP4693486A1
The invention relates to an electrocatalytic electrode comprising a coating film on an electrically conductive base substrate that includes a non-stoichiometric mixed oxide dispersed in the film, including a mixture of iron and vanadium, in a metal-organic matrix, the organic part of which includes the mixed oxide dispersed therein. The electrocatalytic electrode can be used for the production of molecular hydrogen.The invention also relates to a method for producing the electrocatalytic electrode and the use of the electrocatalytic electrode for the improved production of molecular hydrogen by means of at least water hydrolysis, alkaline water electrolysis, alkaline electrolysis via ion exchange, as a selective electrode and as an electrode for the oxidation of organic compounds in an aqueous solution.
Absstract of: CN120898031A
The present invention relates to a composition comprising from about 90% to about 99.99% by weight of one or more non-crosslinked fluorinated sulfonyl fluoride polymers and from about 0.01% to about 10% by weight of one or more noble metal catalysts, based on the total weight of the composition, wherein the one or more noble metal catalysts are uniformly distributed throughout the one or more non-crosslinked fluorinated sulfonyl fluoride polymers. Such compositions may be formed as cation exchange precursors, for example by extrusion, and, after treatment, form cation exchange membranes. The resulting films and membranes have a noble metal catalyst uniformly distributed throughout the layer of the catalyst-containing polymer.
Absstract of: CN120936755A
The present application relates to an electrolytic cell battery cell having a battery layer (1314) comprising an electrochemically active battery region (1350), the battery layer (1314) having a first side (1315a) and a second side (1315b). The cell defines a first fluid flow region (1360) for delivering fuel to the first side (1315a) of the cell layer (1314) and a second fluid flow region (1365) for discharging fluid from the second side (1315b) of the cell layer (1314). A cross-sectional area of the second fluid flow region (1365) is less than a cross-sectional area of the first fluid flow region (1360).
Absstract of: CN120752767A
A method of making a catalyst coated ion conducting membrane for use in an electrochemical device, such as a fuel cell or an electrolytic cell, is provided. The method includes providing an electrolyte membrane having a first face and a second face, the first face disposed opposite the second face. A first catalyst ink is deposited onto the first side of the electrolyte membrane to form a first wet catalyst layer, and then dried to form a first catalyst layer on the first surface of the electrolyte membrane. The first catalyst ink comprises a first ionically conductive polymer; a first electrocatalyst; and a first dispersant. Subsequently, a second catalyst ink is deposited onto a second face of the electrolyte membrane to form a second wet catalyst layer and dried to form a second catalyst layer. The second catalyst ink comprises a second ionically conductive polymer; a second electrocatalyst; and a second dispersant. Before depositing the second catalyst ink onto the second side of the electrolyte membrane, the first catalyst layer is subjected to a temperature A of 130 DEG C or more, and the second catalyst layer is subjected to a temperature B lower than the temperature A.
Absstract of: CN120882906A
A porous transport layer for an electrolytic cell or for a fuel cell, the porous transport layer comprising: a first non-woven layer having metal fibers, the first non-woven layer having metal fibers being arranged for contacting a proton exchange membrane, where the first non-woven layer having metal fibers comprises metal fibers having a first equivalent diameter, and the second non-woven layer having metal fibers having a second equivalent diameter; wherein the first non-woven layer having metal fibers has a first surface roughness and a first porosity,-a second non-woven layer having metal fibers wherein the second non-woven layer having metal fibers comprises metal fibers having a second equivalent diameter, wherein the second nonwoven layer having metal fibers has a second surface roughness and a second porosity wherein the first surface has a material ratio of less than 5% material at a height of 5 mu m and greater than 70% material at a depth of-5 mu m, the first equivalent diameter is less than the second equivalent diameter, the first surface roughness is at least 20% less than the second surface roughness, and the second surface roughness is at least 20% less than the second surface roughness. The first porosity is at least 10% less than the second porosity, such as in the range of 20% to 120%, for example, the first porosity is at least 10% less than the second porosity, such as in the range of 10% to 50%, and wherein the first nonwoven layer is metallurgically bo
Absstract of: CN121039917A
Systems and methods are provided for an electrolysis plant interconnecting a renewable energy source (22) and a power grid (20). The system includes a power source (22) and an electrolysis plant (30) including electrolysis equipment (32) connected to the power source (22) to energize the electrolysis equipment to respective operating conditions. The control system (40) is connected to the power source (22) and the power grid (20). Upon detection of a power failure or otherwise insufficient power supply of the renewable power source, the control system is configured to bring the electrolysis device to a corresponding standby condition. The electrolysis device is connected to an electrical grid to energize the electrolysis device to a standby condition. Optionally, a backup power supply (26) is connected to the control system such that the backup power supply is configured to energize the control system upon detecting that the renewable power source and the grid are simultaneously powered off or are simultaneously otherwise insufficient in power supply.
Absstract of: CN121013925A
The invention relates to a membrane electrode assembly (1) for a water electrolyser, comprising an anode (2), a cathode (3) and a hydrocarbon membrane (4) located between the anode (2) and the cathode (3), further comprising a first gas recombination layer (5) arranged between the anode (2) and the hydrocarbon membrane (4) wherein the first gas recombination layer (5) comprises a noble metal (6), a ceramic material (7) and a proton conducting polymer (8), and wherein the volume fraction of the proton-conducting polymer (8) is 24 to 84 vol%, in particular 35 to 75 vol%, and in particular 46 to 65 vol%, based on the total volume of the gas recombination layer (5).
Absstract of: CN120981610A
The invention relates to a membrane electrode assembly (1) for a water electrolyser, comprising an anode (2), a cathode (3) and a hydrocarbon membrane (4) located between the anode (2) and the cathode (3), further comprising a first gas recombination layer (5) arranged between the anode (2) and the hydrocarbon membrane (4), in which at least one adhesion layer (6) is arranged between the gas recombination layer (5) and the hydrocarbon membrane (4), wherein the adhesive layer (6) comprises at least one ceramic material (7) and a proton-conducting polymer (8).
Absstract of: CN120958177A
The invention relates to a membrane electrode assembly (1) having an anode (2), a cathode (3) and a hydrocarbon membrane (4) between the anode (2) and the cathode (3). The membrane electrode assembly (1) further comprises a protective layer (5) arranged between the anode (2) and the hydrocarbon membrane (4) and-or between the cathode (3) and the hydrocarbon membrane (4), where the protective layer (5) comprises at least one ceramic material (6) and a fluorine-containing ionomer (7), where the ceramic material (6) is dispersed in the fluorine-containing ionomer (7).
Absstract of: CN121013921A
The invention provides a porous transport layer for an electrolytic cell or for a fuel cell, the porous transport layer comprising:-a first non-woven layer having metal fibres, the first non-woven layer having metal fibres being arranged for contacting a proton exchange membrane, wherein the first non-woven layer having metal fibers comprises metal fibers having a first equivalent diameter, and wherein the first non-woven layer having metal fibers has a first surface roughness and a first porosity; -a second non-woven layer having metal fibers, where the second non-woven layer having metal fibers comprises metal fibers having a second equivalent diameter, where the second non-woven layer having metal fibers has a second surface roughness and a second porosity, where the first surface roughness is less than 10 mu m, and the second surface roughness is less than 10 mu m. The first equivalent diameter is less than the second equivalent diameter, the first surface roughness is at least 20% less than the second surface roughness, e.g. In the range of 20% to 120%, where the first porosity is at least 10% less than the second porosity, e.g. In the range of 10% to 50%, and where the first nonwoven layer is metallurgically bonded to the second nonwoven layer.
Nº publicación: EP4688712A1 11/02/2026
Applicant:
TOPSOE AS [DK]
Topsoe A/S
Absstract of: WO2024208792A1
A methanol plant and a process for the production of methanol is provided. A hydrogen recovery section receives off-gas stream from the methanol synthesis section and outputs a hydrogen-rich stream, which is recycled upstream the methanol synthesis section.
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