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996
resultados
Última actualización
05/03/2026 [06:59:00]
Resultados 900 a 925 de 996
Resumen de: US2025387773A1
A photocatalytic cell of the disclosure is a photocatalytic cell that contains a photocatalyst sheet and an electrolyte. The photocatalyst sheet includes a carrier sheet provided with multiple fibers bonded thereto, and multiple photocatalyst particles supported or fixed on the carrier sheet, the multiple photocatalyst particles include tungsten oxide particles, and a mass of the multiple photocatalyst particles per unit area of the photocatalyst sheet is 20 g/m2 or more.
Resumen de: WO2026008324A1
The invention relates to an electrolyser (1) that comprises a stack (2) that comprises at least one electrochemical cell that comprises a cathode (4), a cathode chamber (50) that is confined by the cathode (4), an anode (5) and an anode chamber (51) that is confined by the anode (5), wherein the electrolyser (1) comprises a cathode pump (13) and a cathode inlet line (15) arranged downstream of the cathode pump (13), wherein the cathode pump (13) is adapted to pump a liquid into the cathode chamber (50) via the cathode inlet line (15), wherein the electrolyser (1) comprises an anode pump (14) and an anode inlet line (17) arranged downstream of the anode pump (14), wherein the anode pump (14) is adapted to pump the liquid into the anode chamber (51) via the anode inlet line (17), wherein the electrolyser (1) comprises a bypass line (11) that fluidly connects the cathode inlet line (15) and/or the cathode chamber (50) with the anode inlet line (17) and/or the anode chamber (51), wherein the electrolyser (1) comprises a pressure difference determination device that is adapted to determine the pressure difference between the pressure in the cathode chamber (50) and the pressure in the anode chamber (51), wherein the electrolyser (1) comprises a control valve (10) that is arranged in the cathode inlet line (15) or in the anode inlet line (17) and is adapted to control the flow of the liquid such that the pressure difference is minimised.
Resumen de: WO2025263025A1
This water electrolysis system includes: a water electrolysis device including a water electrolysis cell that generates hydrogen by electrolysis; a power supply device capable of supplying, to the water electrolysis device, a drive voltage for causing electrolysis in the water electrolysis cell and a voltage having polarity opposite that of the drive voltage; and a control device that controls the driving of the power supply device. In operation stop processing for stopping the electrolysis caused by the supply of the drive voltage, the control device controls the driving of the power supply device so as to stop the supply of the drive voltage to the water electrolysis device and then supply the opposite polarity voltage to the water electrolysis device.
Resumen de: US2025389040A1
A cation reduction device according to the disclosure includes a photocatalytic cell containing an electrolyte containing a first cation and photocatalyst particles, in which the electrolyte and the photocatalyst particles reduce the first cation to a second cation by photocatalytic activity of the photocatalyst particles generated by receiving light, and a pH of the electrolyte is within a pH range in which a zeta potential of the photocatalyst particles is 0 mV or higher.
Resumen de: WO2026011021A1
Large scale exploitation of Solar energy is proposed by using floating devices which use solar energy to produce compressed hydrogen by electrolysis of deep sea water. Natural ocean currents are used to allow the devices to gather solar energy in the form of compressed hydrogen from over a large area with minimum energy transportation cost. The proposal uses a combination of well understood technologies, and a preliminary cost analysis shows that the hydrogen produced in this manner would satisfy the ultimate cost targets for hydrogen production and pave the way for carbon free energy economy.
Resumen de: WO2026010322A1
According to one aspect of the present invention, a water electrolysis system comprising a plurality of modularized water electrolysis stacks is provided, the system comprising: a plurality of water electrolysis stacks; and a stack management unit which determines a stack to be operated from among the plurality of water electrolysis stacks, with reference to load power corresponding to the plurality of water electrolysis stacks and the maximum operating power of each of the plurality of water electrolysis stacks, wherein an operating priority for the plurality of water electrolysis stacks is determined on the basis of a monitoring result of the operating voltage of each of the plurality of water electrolysis stacks.
Resumen de: WO2026009806A1
This water electrolysis cell is provided with: an electrolyte layer; a first gas diffusion electrode layer disposed on one side of the electrolyte layer; a second gas diffusion electrode layer disposed on the other side of the electrolyte layer; a first catalyst layer disposed between the electrolyte layer and the first gas diffusion electrode layer; a second catalyst layer disposed between the electrolyte layer and the second gas diffusion electrode layer; and a water supply unit for supplying water to the surface of the first gas diffusion electrode layer on the side opposite the electrolyte layer.
Resumen de: WO2026009910A1
An electrolysis cell 21 comprises: a solid electrolyte layer 211; a fuel electrode layer 213 that is disposed as a stack on one surface side of the solid electrolyte layer 211; and an air electrode layer 212 that is disposed as a stack on the other surface side of the solid electrolyte layer 211. The fuel electrode layer contains Fe. When a surface 213a1 on the solid electrolyte layer side of the fuel electrode layer is defined as a first surface and a surface 213b2 on the side opposite from the solid electrolyte layer side is defined as a second surface, n points pk (where k is an integer of 1 to n) are set in the fuel electrode layer along the thickness direction at intervals such that a point p1 is located at the first surface, a point pn is located at the second surface, and k increases in the direction from the first surface toward the second surface, and when a value obtained by dividing, by n, a cumulative value of the Fe concentration at each of the points from the point p1 to the point pk is defined as a normalized cumulative value Ck of the Fe concentration at the point pk, a normalized cumulative value Cn is 0.118-0.367 wt%.
Resumen de: WO2026009849A1
This organic compound is represented by general formula (1). X includes at least one type of linking group selected from the group consisting of an arylene group and an aromatic heterocyclic group, Y is a single bond or an aliphatic hydrocarbon linking group, Ar is an aromatic heterocyclic group, R1 and R2 are each independently a hydrogen atom or an aliphatic hydrocarbon group, R3, R4, R5 and R6 are each independently a hydrogen atom, an aliphatic hydrocarbon group or an aryl group, and at least one combination selected from the group consisting of R3 and R5, and R4 and R6, may bond to each other to form a ring.
Resumen de: WO2026009969A1
The present invention addresses the problem of providing a hydrogen production apparatus using a solid oxide electrolysis cell, in which the water vapor utilization rate is high, and followability of a change in water vapor supply flow rate with respect to a power load fluctuation is good . The present invention also addresses the problem of providing a hydrogen production method using the hydrogen production apparatus. A hydrogen production apparatus 10 has a reactor R in which a solid oxide type electrolysis cell 10 is installed, the solid oxide type electrolysis cell 10 including: a water vapor electrode 20 in which an electrolytic reaction of water vapor occurs; a gas-impermeable and ion-permeable solid oxide electrolyte 40; and a counter electrode 30 in which a reaction of a charge carrier that is generated through the electrolytic reaction in the water vapor electrode 20 and that passes through the solid oxide electrolyte 40 occurs. The hydrogen production apparatus 10 has an injector 23 that supplies water in a pulsed manner to the water vapor electrode 20 side of the reactor R. The above problems are solved by supplying water to the water vapor electrode 20 in a pulsed manner.
Resumen de: WO2026009488A1
Disclosed is a novel technology for applying SOEC in a direct reduction process in which a shaft furnace is used. A hydrogen reduction system according to the present disclosure has a shaft furnace, a reducing gas supply device, a reducing gas heating device, a source material pretreatment device, and a hydrogen production device. In this hydrogen reduction system, a reducing gas is supplied to the shaft furnace via the reducing gas supply device and the reducing gas heating device, and a 600°C to 900°C iron oxide source material is supplied to the shaft furnace via the source material pretreatment device. The hydrogen production device has an SOEC, and the SOEC uses a steam-containing gas which has been discharged from the shaft furnace to produce hydrogen gas. The hydrogen gas produced by the SOEC is used as a reducing gas.
Resumen de: WO2026008081A1
Disclosed in the present invention is a system for preparing green methanol by means of biomass gasification coupled with green hydrogen. The system comprises: a gasification unit (A), a purification unit (B), a hydrogen and oxygen unit (C) and a synthesis unit (D), wherein synthesis gas (104) produced by the gasification unit (A) passes through the purification unit (B) and serves as a raw material gas (107) of the synthesis unit; oxygen (109) produced by the hydrogen and oxygen unit (C) serves as oxygen of the gasification unit, and hydrogen (113) produced by the hydrogen and oxygen unit (C) serves as a hydrogen source for adjusting the hydrogen-carbon ratio of the raw material gas of the synthesis unit (D); and part of a purge gas (121) of the synthesis unit (D) is returned to the gasification unit for recycling. The system of the present invention operates stably and reliably, and has a high utilization rate of renewable carbon sources, and a low methanol preparation cost.
Resumen de: US20260009146A1
We synthesized a tungsten titanium carbide (W2TiC2) MXene. By loading cobalt onto the surface of W2TiC2, we developed an effective and stable catalyst for an alkaline hydrogen evolution reaction. The catalyst exhibited a small overpotential of 63 mV at 10 mA/cm2 and a low Tafel slope of 44.3 mV/dec. At high current density of 100 mA/cm2 and 1000 mA/cm2, low overpotentials of 191 mV and 408 mV were achieved, outperforming commercial Pt/C electrodes. Under both current ranges, our catalyst exhibited excellent stability of 500 h at 10 mA/cm2 and for 100 h at 1000 mA/cm2 without any degradation. In flow cell tests, by pairing with Ni foam, our catalyst required much lower cell voltage than commercial Ni foam Pt/C and maintained ̃100% H2 faradaic efficiency over 15 h of continuous tests from 50 to 400 mA/cm2. Under more demanding industry-level conditions, the catalyst maintains the incredible performance, exhibiting an excellent stability of at least 1000 h at 4000 mA cm−2 in 1 M KOH.
Resumen de: TW202444645A
The present disclosure relates to a plant and process low energy intensity cracking ammonia and to a plant. The process comprises: supplying a gaseous process flow comprising ammonia (204); preheating the process flow at a preheater (205) upstream an ammonia cracker; feeding the process flow as a feed to a reaction zone of the reactor; cracking at least part of the ammonia comprised in the feed at the reaction zone yielding a hot process mixture comprising hydrogen and nitrogen, and providing a heat duty for the cracking and the preheating by a firing at a combustion zone of the reactor. The process comprises a recuperative transfer of heat from the hot process mixture to the process feed at the reaction zone by passing the hot process mixture received from the catalytic reaction zone through an internal recuperative heat exchanger of the cracking reactor.
Resumen de: WO2024179759A1
The invention relates to an electrochemical cell and to a method for producing hydrogen and oxygen from water. By virtue of the electrochemical cell according to the invention, it is possible to carry out an electrochemical reaction at temperatures of 120 °C - 200 °C and pressures of up to 30 bar even under harsh chemical conditions (e.g. KOH mass fractions of up to 35% in the electrolyte) over long periods of time. By virtue of the method according to the invention it is possible to produce hydrogen and oxygen from water at temperatures of 120 °C - 200° C and pressures of up to 30 bar even under harsh chemical conditions (e.g. KOH mass fractions of up to 35% in the electrolyte).
Resumen de: AU2024262986A1
The invention relates to the coating of cation exchange membranes with catalytically active substances. The catalytically actively coated cation exchange membranes are used in electrochemical cells, especially in fuel cells (proton exchange membrane fuel cells - PEMFC) or in electrolysers for water electrolysis (polymer electrolyte membrane water electrolysis - PEMWE). In order to counteract the disadvantages of conventional decal processes, an alterative process for coating cation exchange membranes was sought which enables the transfer of electrocatalysts without the need for high temperatures, high pressures and PFAS-based substrates. It was surprisingly found that catalyst layers which are treated, shortly before the transfer step, with a polymer-swelling solvent conducting the cations can be transferred far more easily.
Resumen de: CN121039327A
A solid state oxide cell stack has at least one connection plate between the solid state oxide cell stack and adjacent end plates, between two adjacent end plates, and/or between adjacent solid state oxide cell sub-stacks.
Resumen de: CN121039328A
A solid-state oxide cell stack has at least one connection plate between the solid-state oxide cell stack and adjacent end plates, between two adjacent end plates, and/or between adjacent five solid-state oxide cell sub-stacks.
Resumen de: WO2024218273A1
A method for storing hydrogen in a plurality of subsea storages in a system. The system comprising an electrolyser source (100) for producing hydrogen at a source pressure; a downstream compressor (200) for compressing the hydrogen from the source pressure to a compressed higher pressure; and a plurality of storages (300) each for storing compressed hydrogen at the compressed higher pressure and each being subsea. The method comprising at least the steps of: producing hydrogen (1000) by the electrolyser source (100) at the source pressure; passing the hydrogen (2000) to the plurality of storages (300) through a bypass line (210) around the compressor (200); and storing the hydrogen (3000) in at least one of the plurality of storages (300) at a first pressure below the compressed higher pressure. A system for storing hydrogen in a plurality of subsea storages, the system comprising: an electrolyser source (100) for producing hydrogen at a source pressure; a downstream compressor (200) for compressing the hydrogen from the source pressure to a compressed higher pressure; a plurality of storages (300) each for storing compressed hydrogen at the compressed higher pressure and each being subsea; and a controller (400) for controlling the electrolyser source (100), the downstream compressor (200), and valves (310) to the plurality of storages (300). The controller (400) is configured for controlling the system in, at least, two alternative ways: A) passing the hydrogen, produced by
Resumen de: MX2025012716A
An electrochemical device including: - at least one electrochemical cell, - two fluid lines, - a pre-heating unit for preheating at least one of the fluids before feeding the at least one fluid to the system, a load device for electrically oading the at least one electrochemical cell, - temperature sensors, - pressure sensors for detecting a pressure and/or a differential pressure, the device comprises a control management system. The control management system : - is configured to keep a temperature gradient between the inlet side and the exhaust side of at least one fluid line below a predefined system critical temperature gradient and/or to control a minimum temperature and/or a maximum temperature cross the electrochemical device compared with a pre-defined temperature reference; and/or - is configured to control the di f ferential pressure between the two fluid lines; and/or - is configured to control the pressure drop of at least one fluid line; and/or - is configured to control at least one maximum pressure and/or at least one minimum pressure of the fluid in the electrochemical device compared to a pre-defined pressure reference.
Resumen de: CN120813540A
The invention relates to a method for purifying a hydrogen stream polluted by water, oxygen and possibly nitrogen, said method comprising contacting the hydrogen stream to be purified with a zeolite-based adsorbent material, the zeolite-based adsorbent material comprises at least one metal selected from the metals of columns 3 to 12 of the Periodic Table of Elements in the form of a zero-valent metal, or in an oxidized or reduced form, and recovering a purified oxygen stream. The invention also relates to the use of a zeolite-based adsorbent material comprising at least one metal from column 3 to column 12 of the Periodic Table of Elements for purifying hydrogen, and the use of the thus purified hydrogen in industrial processes.
Resumen de: AU2024228415A1
Enclosure adapted for a hydrogen and oxygen generating apparatus arranged in a movable has an interior and an interior surface and an exterior surface whereby the hydrogen and oxygen generating apparatus comprises at least one electrolyser stack adapted for electrolysing water to hydrogen product gas and oxygen product gas and accompanying gas and electrolyte handling equipment. The exterior surface of the enclosure comprises at least a heat insulating, flexible polymer cover element which is attached to a metal frame.
Resumen de: EP4675171A1
OBJECTTo provide an industrial furnace that burns ammonia efficiently while decreasing nitrogen oxides.MEANS OF REALIZING THE OBJECTAn industrial furnace 1 burns ammonia using flame F, emitted by a burner 10. Ammonia is supplied to the burner 10 alongside of combustion air and fuel gas. Injection nozzles 21, 22, 23, 24 for ammonia each have a shape of a tube. The injection nozzles 21, 22, 23, 24 for ammonia are provided on a wall surface of a furnace body 2 and pierce the wall surface. The injection nozzles 21, 22, 23, 24 for ammonia each have a top end that protrudes toward the interior of the furnace body 2 from the wall surface. The injection nozzles 21, 22, 23, 24 for ammonia are used to inject ammonia exclusively. In addition, the injection nozzles 21, 22, 23, 24 for ammonia are entirely formed from a catalyst C that decomposes ammonia into hydrogen and nitrogen.
Resumen de: GB2642328A
An offshore hydrogen production system comprising: a hydrogen production facility (10) comprising a renewable power generator (70) and at least one electrolyser (16). The capacity of the at least one electrolyser (16) corresponds to a power output of the power generator (70). The hydrogen production facility (10) is configured to be supplied with utilities for the production of hydrogen from a utilities system (11) which is located remote from the offshore hydrogen production facility (10). Also claimed is a method of producing hydrogen, a method of designing an offshore hydrogen production system, and method for the production of an offshore hydrogen production system. Also claimed is a utilities pipeline comprising a plurality of utilities fluid pipelines including at least one water supply and one hydrogen gas supply, at least one power supply cable or instrument control cable and wherein one of the water supply pipeline or hydrogen supply pipeline is positioned centrally about a longitudinal axis of the umbilical.
Nº publicación: EP4675011A1 07/01/2026
Solicitante:
SIEMENS ENERGY GLOBAL GMBH & CO KG [DE]
Siemens Energy Global GmbH & Co. KG
Resumen de: EP4675011A1
The invention relates to an electrolyser (1) that comprises a stack (2) that comprises at least one electrochemical cell that comprises a cathode (4), a cathode chamber (50) that is confined by the cathode (4), an anode (5) and an anode chamber (51) that is confined by the anode (5), wherein the electrolyser (1) comprises a cathode pump (13) and a cathode inlet line (15) arranged downstream of the cathode pump (13), wherein the cathode pump (13) is adapted to pump a liquid into the cathode chamber (50) via the cathode inlet line (15), wherein the electrolyser (1) comprises an anode pump (14) and an anode inlet line (17) arranged downstream of the anode pump (14), wherein the anode pump (14) is adapted to pump the liquid into the anode chamber (51) via the anode inlet line (17), wherein the electrolyser (1) comprises a bypass line (11) that fluidly connects the cathode inlet line (15) and/or the cathode chamber (50) with the anode inlet line (17) and/or the anode chamber (51), wherein the electrolyser (1) comprises a pressure difference determination device that is adapted to determine the pressure difference between the pressure in the cathode chamber (50) and the pressure in the anode chamber (51), wherein the electrolyser (1) comprises a control valve (10) that is arranged in the cathode inlet line (15) or in the anode inlet line (17) and is controlled such that the pressure difference is minimised.
BOPI
Sede Electrónica
