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561
resultados
Última actualización
13/12/2025 [07:08:00]
Resumen de: TW202507083A
Gas composition reaching a flammability limit can be prevented by a method of stopping a gas production apparatus in a method of electrolyzing an alkaline electrolyte solution under pressurized conditions, the electrolyzing method including: circulating electrolyte solutions having flown out of anode and cathode chambers, respectively, to the anode and cathode chambers back again, the stopping method comprising: stopping operation of the gas production apparatus according to the procedure including predetermined steps.
Resumen de: US2025376627A1
Systems and methods for de-watering of hydrocarbon production wells which uses electrolysis of a water fraction in downhole fluids and a reaction chamber at a distal end of a hydrocarbon production well to generate hydrogen and oxygen gases, to improve hydrocarbon inflow into the production well. The produced hydrogen and/or oxygen gases may be used in combination with hydrocarbons produced by the production well to fuel a gas turbine at surface to generate electrical power for the electrolysis, or such gases may be recombined at surface to provide purified water. A first gas collection means surrounds a region above or proximate an anode for collecting the oxygen gas, and a first production tubing extends therefrom to surface. Means are further provided for collecting and producing hydrogen gas at a cathode, either in combination with produced hydrocarbons from the production well, or separately therefrom.
Resumen de: US2025376771A1
Systems and methods for producing hydrogen (H2) from a desalination plant are described. The method can include desalinating saline water using energy produced by a gas turbine. Producing by splitting the desalinated water with an electrolyzer. The electrolyzer uses energy produced from the gas turbine to split the desalinated water. CO2 can be captured from the gas turbine exhaust. Produced H2 and captured CO2 can be supplied to a reactor. In the reactor, a first product stream that includes H2 and optionally methane (CH4) can be obtained.
Resumen de: US2025376422A1
Sulfur-incorporated bismuth ferrite nanoparticles (SBFNPs) contain Bi2Fe4O9 nanoparticles doped with Fe(0) and Bi(0) and sulfur in an amount of 0.5 to 5 percent by weight. At least a portion of bismuth is bonded to at least a portion of the sulfur and at least a portion of iron is bonded to at least a portion of the sulfur. The bismuth ferrite nanoparticles have a longest dimension of 1 to 50 nm. A method of photocatalytic degradation of dyes and a method of hydrogen generation and storage using the nanoparticles.
Resumen de: DE102024205219A1
Die Erfindung betrifft einen Elektrolyseur für die Erzeugung von Wasserstoff mittels Elektrolyse, umfassend eine Vielzahl von Elektrolysezellen (1), die in Elektrolysestapel aufgeteilt sind, wobei jede Elektrolysezelle (1) eine ionenselektive Membran mit einem Rekombinationskatalysator (3) aufweist, auf der beidseitig Elektroden (4, 5) angeordnet sind, an welche im Betrieb eine äußere Spannung angelegt wird, wobei anodenseitig eine erste Wasser-Zuleitung (6) zum Zuführen von Wasser zu einem Anodenraum (8) vorgesehen ist und eine Sauerstoff-Produktleitung (10) zum Abführen des erzeugten Sauerstoffs (O2) aus dem Anodenraum (8) angeschlossen ist und kathodenseitig eine Wasserstoff-Produktleitung (11) zum Abführen des erzeugten Wasserstoffs (H2) aus einem Kathodenraum (9) vorgesehen ist, umfassend weiterhin ein Kontrollsystem (12) zum Steuern des Betriebs der Elektrolysestapel, wobei das Kontrollsystem (12) dafür eingerichtet ist, einen im Wesentlichen gleichbleibenden Druck (pK) im Kathodenraum (9) einzustellen und einen Druck (pA) im Anodenraum (8) als Funktion einer Wasserstoffkonzentration (CH2) im Sauerstoff zu regeln. Die Erfindung betrifft ferner ein Verfahren zum Betrieb eines Elektrolyseurs.
Resumen de: US2025376778A1
A control system for a hydrogen production facility is a control system for controlling operation of a hydrogen production facility including at least one water electrolyzer. The control system includes: a required hydrogen flow rate acquisition part configured to acquire a required hydrogen flow rate that is a hydrogen generation amount required for the water electrolyzer; a conversion part configured to convert the required hydrogen flow rate into a current required to generate hydrogen at the required hydrogen flow rate at the water electrolyzer and acquire a provisional required current; and a first correction part configured to acquire a current set value to be provided to the water electrolyzer by correcting the provisional required current using a first correction factor based on a difference between the required hydrogen flow rate and an actual hydrogen flow rate that is a hydrogen generation amount generated actually at the water electrolyzer.
Resumen de: US2025376772A1
A proton-conducting solid oxide electrolyzer includes a first electrode configured to produce oxygen gas from steam, a second electrode configured to produce hydrogen gas from the steam, and a proton-conducting solid oxide electrolyte between the first electrode and the second electrode. The first electrode includes barium zirconate of formula BaZrO3−δ doped with at least one transition metal and substantially free of a rare earth element, wherein δ is an oxygen deficit, and wherein the at least one transition metal comprises cobalt. Also disclosed are an electrode for the proton-conducting solid oxide electrolyzer, and a method of producing hydrogen gas.
Resumen de: WO2024162841A1
An electrolyte solution comprising an electrolyte, wherein the electrolyte is used in an amount ranging between 1 wt% to 10 wt% of the electrolyte solution; an ionic liquid, wherein the ionic liquid is used in an amount ranging between 1 wt% to 5 wt% of the electrolyte solution; and a solvent, wherein the solvent is used in an amount ranging between 75 wt% to 99 wt% of the electrolyte solution.
Resumen de: AU2024214359A1
Feedwater preparation system in a water electrolyser adapted to produce hydrogen and oxygen in one or more pressurised electrolyser stacks (2) using alkaline water and comprising a product gas conditioning system that has a safety valve out-blow material stream pipe (11) which is connected to a feedwater vessel (9), and/or has a depressurisation stream pipe (31) from a gas cleaning vessel which is connected to the feedwater vessel (9).
Resumen de: MX2025008939A
The present disclosure relates to methods of sequestering CO<sub>2 </sub>comprising a first cathodic chamber, performing a first alkaline process, a first anodic chamber, performing a first acidic process, and dechlorinating a solution by contacting the solution with a dechlorinating agent. Also provided herein are systems comprising a first cathodic chamber and a first anodic chamber.
Resumen de: WO2024162842A1
A method of generating hydrogen and oxygen from a liquid feed stream through an integrated system of forward osmosis and electrolysis, wherein the method comprising the steps of feeding water into an electrolyte solution by means of forward osmosis and applying a voltage across the electrolyte solution to generate hydrogen and oxygen, characterized in that the electrolyte solution comprising an electrolyte, an ionic liquid and a solvent, wherein the electrolyte is used in an amount ranging between 1 wt% to 10 wt% of the electrolyte solution, wherein the ionic liquid is used in an amount ranging between 1 wt% to 5 wt% of the electrolyte solution and wherein the solvent is used in an amount ranging between 75 wt% to 99 wt% of the electrolyte solution.
Resumen de: EP4660350A1
The invention is aimed to create a method for producing hydrogen and oxygen from water and aqueous solutions, which ensures increased productivity and reduced energy consumption. In the method, electrical energy in the process of water electrolysis is used in the plasma electrolytic process mode between the anode and cathode in water with the removal of hydrogen from the cathode region and oxygen from the anode region, while the water is simultaneously subjected to acoustic impact induced by a piezoelectric emitter, wherein the acoustic impact propagation vector is perpendicular to the electric field vector, the obtained gaseous hydrogen and oxygen are captured separately by electromagnetic separators with oppositely directed magnetic fields. The device for producing hydrogen and oxygen from water and aqueous solutions consists of a reactor in the form of a container with water, in the reactor there is a piezo-acoustic emitter, the power source is connected to the anode and cathode, in which the thermionic insert is made of tungsten, zirconium or hafnium, and the branch pipes of electromagnetic output separators.
Resumen de: EP4660131A1
The subject of the invention is a hydrogen burner using water thermolysis, incorporating a hydrogen combustion chamber (1) containing heating nozzles (3) connected to a fuel transport duct (4), with at least one magneto (6) installed in its vicinity. This burner is characterised in that the chamber (1) contains water (2) in which a duct (6) with heat exchange medium is immersed, and the heating nozzles (3) are dir3ected towards the table of that water (2). The chamber (1) is made of heat-resistant steel and coated with a thermal insulation layer (5) on the outside. Water (2) in the chamber (1) contains transition metals acting as catalysts for water thermolysis, particularly such as cerium, nickel, molybdenum, or chromium.
Resumen de: EP4660153A1
The water electrolysis system is a water electrolysis system using an alkaline aqueous solution as an electrolytic solution, the water electrolysis system including a cell stack to which the electrolytic solution is supplied; a storage section in which the electrolytic solution is stored; an annular flow path connecting the storage section and the cell stack to each other; a pump section provided on the annular flow path; a scale removal section that is provided on the annular flow path and is capable of removing a scale included in the electrolytic solution; and a scale component removal section capable of removing scale components dissolved in the electrolytic solution at or below a saturation concentration.
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: WO2024247383A1
Provided is an ammonia decomposition device capable of achieving both an improvement in ammonia conversion rate and an improvement in catalyst life. An ammonia decomposition device (11) comprises: an ammonia gas inlet (13); a catalyst-carrying honeycomb structure (1) that decomposes ammonia to generate hydrogen and nitrogen; and a gas outlet (14). The catalyst-carrying honeycomb structure (1) includes: a ceramic honeycomb structure; a catalyst layer (3) that is formed in a flow path (2a) of the honeycomb structure and decomposes ammonia; and electrodes (4a, 4b) that are formed on a side surface of the honeycomb structure. Electricity is passed through the honeycomb structure.
Resumen de: TW202428942A
There is provided a cathode chamber assembly, which may not require any skill for assembling, and which may not cause any problems such as formation of an undesirable space in the peripheral portion of the cathode chamber. The cathode can be easily replaced when it deteriorates. The cathode is attached detachably to ribs formed on the bulkhead, directly or indirectly with a plurality of fastening screws or fastening pins, and further or alternatively, a peripheral flange of a rectangular flame shape extending along the inner surface peripheral portion of the bulkhead is disposed. In the embodiment, the cathode may be attached by bonding one surface of a rectangular gasket to the inner surface of the peripheral flange, and by adhering an adhesive tape across the inner peripheral portion of the other surface of the gasket and the outer peripheral portion of the exposed surface of the cathode.
Resumen de: JP2025176907A
【課題】電解スタックの状態を簡便に診断できるようにする。【解決手段】原料化合物の電気分解により所望のガスを生成する電解スタック１０と、電解スタック１０に電圧を印加する電力変換装置６と、電解スタック１０に印加された電圧を計測する電圧センサ７と、電解スタック１０に電圧を印加した際に電圧センサ７が取得する電圧の時系列データを用いて、電解スタックの静電容量成分で規定される指標を算出し、算出した指標の値を基準値と比較して電解スタックの状態を診断する診断装置２０と、診断装置が診断した結果を外部に出力または表示する出力装置３０と、を備える。【選択図】図１
Resumen de: AU2024224224A1
In a gas pressure balance method in an electrolyser system a predefined pressure difference between pressures in an oxygen gas separation tank and a hydrogen gas separation tank is maintained by controlled release of gases through an oxygen back pressure valve and a hydrogen back pressure valve. in a first step, for each of the oxygen back pressure valves and the hydrogen back pressure valves, a predefined, calibrated pilot gas pressure is generated and in a second step, the predefined, calibrated pilot gas pressures are forwarded to the respective back pressure valves and in a third step, hydrogen and oxygen gasses are released whenever the gas pressures in the hydrogen and oxygen separation tanks exceeds the predefined, calibrated pilot pressure in the respective pilot gas streams.
Resumen de: WO2024184587A1
The invention relates to a method for producing a compound comprising at least one of hydrogen or oxygen. The method comprises providing water and a first substance, producing a mixture comprising the water and bubbles comprising the first substance, decreasing diameter of bubbles comprising the first substance, decomposing a part of the water, and composing a compound at least from the decomposed water and the first substance, and the compound comprising at least one of hydrogen or oxygen. The invention further relates to apparatus for producing a compound comprising at least one of hydrogen or oxygen.
Resumen de: WO2025247962A1
The present invention relates to a water-efficient method of storing hydrogen using a bicarbonate/formate-based aqueous reaction system, wherein the method comprises: (A) reducing aqueous bicarbonate using hydrogen to form formate and water, (B) at least partially separating water from the aqueous reaction system to provide water and concentrated salt components comprising formate, and (C) using the water provided in step (B) to form hydrogen for use in step (A) and/or to dissolve concentrated salt components comprising bicarbonate to provide aqueous bicarbonate for use in step (A).
Resumen de: US2025373010A1
A system combination having at least two electrolysis systems, a power supply source having a direct voltage output, and a central supply line is provided. The central supply line is connected to the direct voltage output of the power supply source, so that a direct current can be fed into the central supply line and a central DC network designed for high voltage is provided, to which DC network the electrolysis systems are connected by means of the central supply line. The power supply source has, as a power generator, a wind turbine, to which a rectifier having a direct voltage output is connected, the direct voltage output being designed for the high voltage.
Resumen de: US2025368520A1
The invention relates to a system and a method for producing ammonia, including an ammonia reactor which is formed for the generation of ammonia (NH3) from a synthesis gas, where the synthesis gas includes hydrogen (H2) and nitrogen (N2), further including an electrolizer which is formed to generate hydrogen and oxygen from water, where the electrolizer is operated with renewable energies, further including a gas turbine operated with hydrogen, where the exhaust gas of the gas turbine containing nitrogen (N2) is employed for the generation of the synthesis gas.
Resumen de: US2025369130A1
The present disclosure provides a water electrolysis membrane electrode, a method for preparing the water electrolysis membrane electrode, and a water electrolyzer applying the water electrolysis membrane electrode. The water electrolysis membrane electrode includes a cathode gas diffusion layer, a cathode catalytic layer, an anion exchange membrane, a hydrophobic anode catalytic layer, and an anode gas diffusion layer that are stacked in sequence. Raw materials for preparing the hydrophobic anode catalytic layer include an anode catalyst, a hydrophobic material, and an anode ionomer. A mass ratio of the anode catalyst, the hydrophobic material, and the anode ionomer is 10:1-3:1-3. A porosity of the hydrophobic anode catalytic layer is 10%-40%.
Nº publicación: US2025369135A1 04/12/2025
Solicitante:
POSTECH RES & BUSINESS DEV FOUND [KR]
POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION
Resumen de: US2025369135A1
The present invention relates to an electrode for a hydrogen evolution reaction in an alkaline water electrolysis cell, wherein the electrode comprises: a co-catalyst consisting of a composite containing a Lewis acid-containing material and a metal-organic framework (MOF); and a catalyst surrounded by the co-catalyst. According to the present invention, the water dissociation step of the alkaline hydrogen evolution reaction is promoted, hydrogen gas generated by the hydrogen evolution reaction can easily permeate through the structure, and Nafion is uniformly dispersed by the large pores created by the MOF, thereby implementing the co-catalyst effect across the entire surface while minimizing catalyst poisoning.
BOPI
Sede Electrónica
