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950
resultados
Última actualización
03/03/2026 [06:57:00]
Resultados 75 a 100 de 950
Resumen de: FI20246009A1
The present disclosure relates to methods and arrangements for improving the operational flexibility of systems (200) comprising an electrolyzer (201) configured to produce hydrogen and one or more downstream hydrogen processing units (202a-d), wherein at least one of the one or more downstream hydrogen processing units has a hydrogen mass flow operating capacity more restricted than hydrogen mass flow operating capacity of the electrolyzer. The operational flexibility of the system is improved by feeding additional hydrogen from an additional hydrogen source (203) to the one or more downstream hydrogen processing units to compensate for the difference.
Resumen de: MX2025009259A
A hydrogen generation system includes: a direct current (DC) power supply providing a driver signal, a reactive circuit coupled to the power supply and configured to generate a pulse drive signal from the driver signal, at least one reaction chamber coupled to the reactive circuit and receiving the pulse drive signal wherein the chamber is configured to generate hydrogen from feedstock material utilizing the pulse drive signal, a gas analyzer coupled to the at least one reaction chamber and configured to detect the generated hydrogen, and a control unit coupled to the reactive circuit and to the gas analyzer and configured to control the reactive circuit based on the detected hydrogen. The reaction chamber includes a plurality of positively charged elements and a plurality of negatively charged elements. The elements are composed of non-dis similar metallic material.
Resumen de: AU2024222987A1
A system, comprising: an electrolyzer having a plurality of electrolysis cells arranged in a cell stack, wherein the electrolysis cells are electrically connected in series and grouped into two or more cell groups, each cell group having an electrical contact at either end; an electrical circuit having one or more switches, each switch coupled between the electrical contacts of a respective one of the cell groups and configured to selectively disconnect the cell group from the cell stack by electrically bypassing the cell group via a lower resistance path, to thereby vary the number of active electrolysis cells in the cell stack; and a controller configured to determine the number of active electrolysis cells based on a variable amount of direct current (DC) electrical energy supplied to the cell stack by an electrical energy source, and to control the one or more switches based on the determination.
Resumen de: US20260008042A1
The present disclosure is directed to a processing solution composition comprising a metal salt, an acid, a solvent, and a non-metal reductant. The present disclosure is also directed to a method of impregnating a porous material by covering or coating the porous material with a processing solution comprising a metal salt, an acid, a solvent, and a non-metal reductant.
Resumen de: WO2024252801A1
Provided is a hydrogen gas production system capable of producing, with a high recovery rate, a hydrogen gas having a deuterium D content ratio equal to or higher than that in raw material water. A hydrogen gas production system 100 according to the present invention comprises: a first tank 10 that accommodates raw material water including heavy water; an electrolysis device 30 that electrolyzes the raw material water to generate a hydrogen gas; a reservoir 50 that stores the hydrogen gas; a liquid feed device 20 that feeds the raw material water from the first tank 10 to the electrolysis device 30; and a gas feed device 40 that feeds the hydrogen gas generated in the electrolysis device 30 to the reservoir 50. In the system 100, the liquid feed device 20 is controlled so as to replenish the raw material water from the first tank 10 to the electrolysis device 30 as the raw material water remaining in the electrolysis device 30 decreases, the gas feed device 40 is controlled so as to continuously feed the hydrogen gas generated in the electrolysis device 30 to the reservoir 50 before, during, and after the replenishment, and the reservoir 50 stores the hydrogen gas generated in the electrolysis device 30 before, during, and after the replenishment.
Resumen de: CN120569516A
The invention provides an electrolytic cell system (10). The electrolytic cell system comprises a heat storage unit (14) and an electrolytic cell (16). The heat storage unit (14) comprises at least one heat source feed inlet. The electrolytic cell (16) comprises at least one electrolytic cell cell (20), a steam inlet and at least one exhaust gas outlet. The exhaust outlet is connected to the heat source feed inlet to heat the heat storage unit (14). The heat storage unit (14) is configured to use its stored heat to generate steam for one of feeding into the steam inlet at a time and generating electricity or both feeding into the steam inlet at the same time and generating electricity. The invention also provides a system comprising an intermittent or variable power source (12) and an electrolytic cell system (10) as defined above. The intermittent or variable power source (12) may be configured to simultaneously or separately power the electrolysis cell (16) and heat the heat storage unit (14) via a heating element.
Resumen de: WO2026032632A1
The invention relates to a fluid transport component (1) for an electrolyser, having a gas diffusion layer (2) which comprises a metal and is porous, and having a porous transport layer (3) which comprises a carbon paper and/or a carbon nonwoven, characterised in that the gas diffusion layer (2) is integrally bonded and electrically conductively connected to the porous transport layer (3). The invention additionally relates to a method for producing a fluid transport component (1) for an electrolyser, having the following steps: a) providing a gas diffusion layer (2) which comprises a metal and is porous; b) providing a porous transport layer (3) which comprises a carbon paper and/or a carbon nonwoven; and c) integrally bonding and electrically conductively connecting the gas diffusion layer (2) to the porous transport layer (3).
Resumen de: WO2025051333A1
The invention relates to a plate-like element (10) of a cell stack (2) of an electrochemical system (1), having a first plate side (26), a second plate side (27), a plurality of openings (13, 21, 22, 23, 23') and a first structure (14) for forming a flow field for coolant and several further structures (14') for forming distributors for operating media on the first plate side (26). The structure (14) comprises a coolant conducting structure (15, 16) through which a first coolant path (15) and a second coolant path (16) arranged mirror-symmetrically thereto are formed, each of which have, starting from one of the openings (21), an elongate inflow portion (17), a centre portion (18) which starts from the inflow portion (17), fans out and describes at least one meandering bend (19), and an elongate outflow portion (20) which adjoins the centre potion (18) and is narrower than the centre portion (18). A longitudinal axis (30) of the inflow portion (17) of the first coolant path (15) matches a longitudinal axis (30) of the outflow portion (20) of the second coolant path (16), and a longitudinal axis (30') of the inflow portion (17) of the second coolant path (16) matches a longitudinal axis (30') of the outflow portion (20) of the first coolant path (15). The invention also relates to a cell stack (2) comprising a plurality of such plate-like elements (10) which are parallel to one another.
Resumen de: WO2026032578A1
A method for producing carbon monoxide is specified. The method comprises electrochemical desorption of carbon dioxide and oxygen from a solution containing a metal hydrogen carbonate and forming carbon monoxide from the carbon dioxide. The carbon monoxide produced can be used in a method for forming syngas.
Resumen de: WO2026032565A1
The invention relates to a process for producing a hydrogen product (3) from a feedstock stream (4), said process comprising the following steps: - providing an ammonia stream (8); - sending the ammonia stream (8) to a vaporizer (6) configured to receive said ammonia stream (8) and to vaporize said ammonia stream (8) so as to obtain a vaporized ammonia stream (10); and - controlling the temperature of the vaporized ammonia stream (10) by injecting a cooling medium (16) into the vaporized ammonia stream (10) thereby obtaining a temperature-controlled ammonia stream (18).
Resumen de: WO2026032563A1
A process (100) for producing a hydrogen product (20) from a feedstock stream (10), the process (100) comprising the following steps: - performing a combustion of a fuel gas (S11) to bring a heat input to the process (100) thereby generating a flue gas (52), - pre-heating the ammonia stream (S3), said preheating being realized in a first heat exchanger (4) arranged to heat the ammonia stream by heat exchange with the flue gas, - sending the pre-heated ammonia stream (12) to a vaporizer (5) and vaporizing (S4) said pre-heated ammonia stream, - sending the vaporized ammonia (14) from said vaporizer (5) as said feedstock stream (S6) and/or sending the vaporized ammonia from said vaporizer as said fuel to said combustion (S11).
Resumen de: WO2026032554A1
The invention relates to a catalyst system for cracking ammonia into hydrogen and nitrogen, comprising at least one tube having an axis extending centrally through the interior of the tube, wherein at least two coaxially arranged regions are formed in the tube in the form of a first region along the central axis and at least one further region surrounding the first region, and wherein the first region contains a first catalyst material and the at least one further region contains at least one further catalyst material, characterised in that a) the first catalyst material has at least one metal selected from the group consisting of noble metals and non-noble metals and b) the at least one further catalyst material has at least one non-noble metal. The first and the at least one further catalyst material are different.
Resumen de: WO2026033985A1
Provided is a hydrogen production system (40) which comprises: an exhaust heat reception unit (41) that receives exhaust heat generated by an external exhaust heat source (11); a water vapor generation unit (42) that generates water vapor by heating water by means of the exhaust heat received by the exhaust heat reception unit (41); a cell stack (43) that electrolyzes the water vapor generated by the water vapor generation unit (42) so as to generate hydrogen; and a replenishment unit (44) that, when the amount of exhaust heat is insufficient with respect to the amount necessary for generating the required amount of water vapor, replenishes water, water vapor, or the water vapor generation unit (42) with heat, or replenishes the cell stack (43) with water vapor from an external water vapor supply source (95).
Resumen de: WO2026035442A1
A system includes at least one electrochemical device including a proton exchange membrane situated between an anode and a cathode. An oxygen separator is fluidly connected to an inlet to the anode and a hydrogen separator is fluidly connected to an outlet from the cathode. A separator tank fluidly interconnects an outlet from the hydrogen separator to an inlet to the oxygen separator.
Resumen de: WO2026034402A1
This electrolytic cell comprises an element provided with: an anode chamber provided with an anode; a cathode chamber provided with a cathode; a conductive partition wall provided between the anode chamber and the cathode chamber; and an outer frame that borders the conductive partition wall. The electrolytic cell is stacked with a gasket and a diaphragm interposed between cells. Sealing of an electrolytic solution is achieved by applying surface pressure between the gasket and the diaphragm and between the gasket and the outer frame. The contact ratio between the diaphragm and a first electrode, which is at least one of the anode and the cathode, is 15%-60%, and a region in which the local stress between the diaphragm and the first electrode is 0.1 MPa or more is 5% or less.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: US20260043158A1
An electrolytic cell and an anion-exchange conductive hollow fiber tube matrix thereof are disclosed. The anion-exchange conductive hollow fiber tube matrix includes a plurality of conductive hollow fiber tubes arranged adjacent to each other in a matrix. The conductive hollow fiber tubes each have a diffusion surface and two opposite ends defined as an inlet and an outlet. An anode and a cathode of the electrolytic cell are disposed adjacent to the diffusion surface. Water in an electrolysis tank flows into the conductive hollow fiber tubes from the inlet, water molecules enter the cathode from the diffusion surface and decompose to produce hydrogen and hydroxide ions, the hydrogen is discharged from the cathode, the hydroxide ions return to the conductive hollow fiber tubes from the diffusion surface and then enter the anode from the diffusion surface to produce oxygen, the oxygen is discharged from a surface of the anode.
Resumen de: US20260043154A1
An alkaline water electrolysis apparatus includes: a separation membrane including a first main surface and a second main surface opposite to the first main surface; a first electrode including a third main surface and a fourth main surface opposite to the third main surface, the third main surface being provided to face the first main surface of the separation membrane; and a first bipolar plate including a fifth main surface, the fifth main surface being provided in contact with the fourth main surface of the first electrode, wherein the first electrode consists of a first metal porous body having a three-dimensional mesh structure.
Resumen de: US20260043150A1
A photocatalytic cell of the disclosure is installed in an inclined manner at an angle of 5° or more and 45° or less with respect to a horizontal plane. The photocatalytic cell includes: a translucent member; an electrolytic solution; a photocatalytic sheet including photocatalytic particles; an injection port through which the electrolytic solution is injected into an inside of the photocatalytic cell; a discharge port through which the electrolytic solution is discharged to an outside of the photocatalytic cell; and an exhaust port through which gas inside the photocatalytic cell is discharged, at least a part of the photocatalytic sheet is immersed in the electrolytic solution, a position of the exhaust port is higher than a position of the injection port, a gap between a surface of the translucent member and a surface of the photocatalytic sheet is 5 mm or more and 50 mm or less in width, and the injection port and the discharge port allow the electrolytic solution to flow from an upper part toward a lower part in the gap between the translucent member and the photocatalytic sheet.
Resumen de: US20260047229A1
Techniques for water electrolysis employing: a glass substrate layer; a transparent conductive oxide (TCO) layer including TCO electrical disconnects formed in the TCO; a photovoltaic (PV) layer including PV electrical disconnects formed in the PV layer, portions of the PV layer extending into the TCO electrical disconnects; a metal back contact (MBC) layer including MBC electrical disconnects formed in the MBC layer, portions of the MBC layer extending into the PV electrical disconnects; an insulating layer including insulating voids formed in the insulating layer to expose anode and cathode portions of the MBC layer, portions of the insulating layer extending into the MBC electrical disconnects; a metal conductor layer adjacent the insulating layer and including a metal conductor extending into insulating voids to form metal conductors electrically coupled to the exposed anode and cathode portions; catalyst coatings on the metal conductors electrically coupled to the anode and cathode portions.
Resumen de: AU2026200498A1
A power generator is described that provides at least one of electrical and thermal power comprising (i) at least one reaction cell for reactions involving atomic hydrogen hydrogen products identifiable by unique analytical and spectroscopic signatures, (ii) a molten metal injection system comprising at least one pump such as an electromagnetic pump 5 that provides a molten metal stream to the reaction cell and at least one reservoir that receives the molten metal stream, and (iii) an ignition system comprising an electrical power source that provides low-voltage, high-current electrical energy to the at least one steam of molten metal to ignite a plasma to initiate rapid kinetics of the reaction and an energy gain. In some embodiments, the power generator may comprise: (v) a source of H2 and O2 supplied to the 10 plasma, (vi) a molten metal recovery system, and (vii) a power converter capable of (a) converting the high-power light output from a blackbody radiator of the cell into electricity using concentrator thermophotovoltaic cells or (b) converting the energetic plasma into electricity using a magnetohydrodynamic converter. an a n
Nº publicación: AU2024357053A1 12/02/2026
Solicitante:
HITACHI LTD
HITACHI, LTD
Resumen de: 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.
BOPI
Sede Electrónica
