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492
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Updated on
28/03/2025 [07:02:00]
Absstract of: AU2023340993A1
The disclosure pertains to a plant for the production of ammonia. The ammonia is produced from hydrogen obtained by electrolysis of water. The electrolysis is powered by a renewable source of energy, complemented with power obtained from the plant during periods of low or no availability of the renewable energy. To this end, the plant is configured such that it can be operated in a charge configuration (obtaining and storing power) and a discharge configuration (employing said power).
Absstract of: AU2023365839A1
The present disclosure relates to a hydrogen production control system and method, and a storage medium. The hydrogen production control system comprises: a safety controller; a first valve and a second valve, which are respectively connected to the safety controller; a hydrogen production controller; a third valve and a fourth valve, which are respectively connected to the hydrogen production controller; an oxygen-side gas-liquid separation apparatus, which is respectively connected to the first valve and the third valve; and a hydrogen-side gas-liquid separation apparatus, which is respectively connected to the second valve and the fourth valve, wherein the hydrogen production controller is used for controlling the pressure of the oxygen-side gas-liquid separation apparatus by means of the third valve and controlling the liquid level of the hydrogen-side gas-liquid separation apparatus by means of the fourth valve; and the safety controller is used for adjusting the pressure of the oxygen-side gas-liquid separation apparatus by means of the first valve and/or adjusting the liquid level of the hydrogen-side gas-liquid separation apparatus by means of the second valve when a hydrogen production parameter is greater than or equal to a preset parameter alarm threshold value. In this way, the system safety is effectively ensured, and the production efficiency is improved.
Absstract of: EP4527988A1
Method for performing an electrolysis with an electrolysis installation (1), comprisinga) recording a respective measurement value (5) of the electrolysis for multiple points of time (6),b) from the points of time (6) used in step a), selecting multiple reference points of time (7), which define a reference period (8),c) fitting a mathematical function (10) to the measurement values (5) recorded in step a) for the reference points of time (7) selected in step b),d) performing at least one of the following sub-steps:d1) from the mathematical function (10) obtained in step c), determining an ageing coefficient that is a measure of the ageing of the electrolysis installation (1),d2) recording a respective measurement value (15) of the electrolysis for at least one point of time (16) that lies after the reference period (8), comparing this measurement value (15) with a corresponding value calculated with the mathematical function (10) obtained in step c) and issuing an indication in case a result of this comparison violates a tolerance criterion.
Absstract of: EP4527983A1
The invention describes a water electrolysis arrangement comprising a water electrolyser (2) with a feed water inlet (21), a hydrogen outlet (22) and an oxygen outlet (23); and a water purifier assembly (1) adapted for connection between a raw water source and the feed water inlet (21) of the water electrolyser (2), and comprising an aeration stage (1<sub>aer</sub>) for aerating raw water (W<sub>raw</sub>); characterized in that the aeration stage (1<sub>aer</sub>) comprises an aeration vessel (10) with a raw water inlet (101) arranged to convey raw water (W<sub>raw</sub>) from the raw water source into the aeration vessel (10); an aeration inlet (102) connected to the oxygen outlet (23) of the water electrolyser (2); and an aerated water outlet (103) arranged to convey aerated water (W<sub>aer</sub>) to a subsequent stage of the water purifier assembly (1). The invention further describes a method of performing water electrolysis using such a water electrolysis arrangement (1).
Absstract of: AU2023272285A1
The invention relates to a water electrolyzer system (1) for producing hydrogen. The water electrolyzer system (1) comprises an electrolysis stack (8) for converting water into hydrogen, power electronics (12) for transforming the alternating current into a direct-current in order to supply the electrolysis stack (8), components (56, 64, 72, 80) for preparing the process media supplied to and discharged from the electrolysis stack (8), and a control unit (18) for controlling the electrolysis stack (8), the power electronics (12), and the components (56, 64, 72, 80) for preparing the media. At least the electrolysis stack (8), the power electronics (12), and the control unit (18) are formed together as an electrolyzer module (36), and the components (56, 64, 72, 80) for preparing the media and for conveying the media are formed together as a process module (52). The modules (36, 52) are equipped with connection possibilities (32, 40, 48, 84), via which the individual modules (36, 52) can be fluidically and electrically connected together.
Absstract of: EP4528862A1
A pore-filling membrane having excellent chemical durability and mechanical strength, a fuel cell including the pore-filling membrane and having excellent durability, and an electrolysis device are provided. The pore-filling membrane has a porous base material and a polyarylene polymer, in which the polyarylene polymer is filled into pores of the porous base material.
Absstract of: CN119213172A
The invention relates to a solid oxide electrolysis unit for industrial hydrogen, carbon monoxide or synthesis gas production, comprising at least two solid oxide electrolysis cores, an electrical supply for managing electrical power to the solid oxide electrolysis cores, and a conduit connected to the solid oxide electrolysis cores, and each solid oxide electrolysis core comprises a plurality of solid oxide electrolysis stacks of solid oxide electrolysis cells. According to the invention, the solid oxide electrolysis unit comprises a power supply module comprising a transformer and at least one power supply unit, and a pipe module comprising pipe headers and fluid connections to and from the solid oxide electrolysis core, wherein the power supply module and the pipe module are arranged adjacent to each other, and the solid oxide electrolysis core is arranged above the power supply module and/or the pipe module.
Absstract of: EP4527989A1
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.
Absstract of: GB2633496A
A passive dual modulating regulator that responds to a pressure differential between a hydrogen-side and an oxygen-side of one or more proton-exchange membrane (PEM) cells is provided. The passive dual modulating regulator includes a flexible diaphragm that is clamped along its periphery between hemispherical chambers. A bi-directional valve assembly extends through the flexible diaphragm and includes opposing valve plugs for selectively closing the output ports of the respective hemispherical chambers. Large or sustained pressure imbalances between the hydrogen-side and the oxygen-side of a hydrogen generation system are avoided without active control inputs of any kind, and consequently a rupture of the PEM is entirely avoided.
Absstract of: AU2023270735A1
The invention relates to hydrogen producing devices comprising: -An inner tube (2) with macroscopic holes, the tube having at one end an entrance opening, and at the other end an exit opening, the openings allowing entrance of moist a gas and allowing exit of a gas comprising oxygen being produced in the device respectively, -An electrode assembly (8) covering the outer surface of said tube, the assembly comprising an oxygen producing electrode (5) at the inner side of the assembly, and a hydrogen producing electrode (4) at the outer side of the assembly, the electrodes being separated from each other by a separator (3), -A liquid or solid material with hygroscopic properties.
Absstract of: AU2023313378A1
The present invention relates to a method and device for producing hydrogen by dissociating water molecules through thermochemical reactions, using a small amount of active material. The thermochemical reactions are induced by solar power with a moderate concentration of up to 50 suns, which can be achieved through linear or parabolic concentrators.
Absstract of: TW202428338A
A process for producing hydrogen comprises the following steps: (a) providing a starting mixture containing bromine, water and a sulfur containing compound, (b) reacting the starting mixture provided in step (a) so as to produce a reaction mixture effluent comprising sulfuric acid and hydrogen bromide, (c) separating the reaction mixture effluent obtained in step (b) into one or more hydrogen bromide enriched compositions and into one or more sulfuric acid enriched compositions, wherein at least one hydrogen bromide enriched composition contains at most 1,000 ppm of sulfuric acid, wherein step (c) comprises at least two distillation steps, (d) subjecting at least a portion of the at least one hydrogen bromide enriched composition containing at most 1,000 ppm of sulfuric acid obtained in step (c) to an electrolysis so as to obtain hydrogen and a bromine containing composition, wherein the electrolysis cell is operated at an operational temperature of at least 70 DEG C, and (e) recycling at least a portion of the bromine containing composition obtained in step (d) back to step (a).
Absstract of: US2025092541A1
A sulfur-modified carbon material contains conductive carbon black and sulfur elements distributed therein. The total sulfur content in the sulfur-modified carbon material is equal to or more than 1.2 times, preferably equal to or more than 1.5 times, the surface sulfur content. A process for preparing the sulfur-modified carbon material includes an impregnation step to impregnate the conductive carbon black with a solution containing sulfur at 10-80° C. for 1-5 h, and a drying step.
Absstract of: JP2024003164A
To provide means for solving the problem on radioactive contamination by applying hydrogen water to applications that are different from an application of removing a radioactive substance from soil and that appropriately exhibit functions of hydrogen water with unique properties.SOLUTION: In a method for reducing an amount of radioactivity in liquid containing a radioactive substance by dissolving hydrogen in the liquid, hydrogen may be dissolved in the liquid by mixing a substance containing a radioactive substance with hydrogen water containing hydrogen of 1.0 ppm or more.SELECTED DRAWING: None
Absstract of: AU2023220801A1
A method of electric current measurement at an electrolyser cell stack is provided. The method comprises the following steps: to provide at least one sensor (11) having an element which is responsive to the presence of a magnetic flux and/or magnetic flux changes adjacent to an input or exit manifold channel (6, 7) outside of a current injector plate in the electrolyser stack, ensure an electric or a wireless connection between the sensor (11) and a recording and/or display device, supply an electrical potential difference between two current injector plates having the electrolyser cell stack arranged between them, capture a signal value indicative of magnetic flux and/or magnetic flux change at the sensor location by at least one sensor (11), make at least one signal value available for storage and/or transmission to a remote location through the wired and/or wireless connection.
Absstract of: US2025092541A1
A sulfur-modified carbon material contains conductive carbon black and sulfur elements distributed therein. The total sulfur content in the sulfur-modified carbon material is equal to or more than 1.2 times, preferably equal to or more than 1.5 times, the surface sulfur content. A process for preparing the sulfur-modified carbon material includes an impregnation step to impregnate the conductive carbon black with a solution containing sulfur at 10-80° C. for 1-5 h, and a drying step.
Absstract of: AU2025201415A1
The invention relates to an electrolytic cell com-prising or consisting of (i) two metal half-cells which form the an-ode chamber and the cathode chamber, (ii) an anode and a cathode arranged in the anode chamber and cathode chamber respective-ly, (iii) a separator membrane, which separates the two electrodes from one another; (iv) for each half-cell at least one inflow and one outflow for reactant and product; and (v) optionally spacers which position the two electrodes in their respective electrode chambers, the two half-cells being connected over their perimeters, but elec-trically isolated from one another and having a wall thickness of 0.05 to 0.15 mm.
Absstract of: WO2025056589A1
The present invention relates to an ammonia synthesis plant having a hydrogen device and a synthesis circuit, wherein the synthesis circuit has a conveying device, a converter and a first bypass line. The hydrogen device is designed to provide hydrogen. The conveying device is designed to cyclically convey a gas mixture, containing nitrogen, hydrogen and ammonia, in a synthesis circuit conveying direction, wherein the conveying device has a suction side and a pressure side. The converter is designed to catalytically convert nitrogen and hydrogen at least partially into ammonia, wherein the converter has an inlet and an outlet, wherein the inlet of the converter is fluidically connected to the pressure side of the conveying device and the outlet of the converter is fluidically connected to the suction side of the conveying device. The first bypass line is arranged from the suction side of the conveying device to the pressure side of the suction device parallel to the conveying device in the fluidically opposite direction and is designed for the stoppable return of a first partial stream of the gas mixture from the pressure side of the conveying device to the suction side of the conveying device, wherein the first bypass line has a cooling device which is designed to cool the first partial stream of the gas mixture. The first bypass line has a second bypass line, which is arranged parallel to the cooling device in the fluidically same direction, and which is designed for the st
Absstract of: WO2025059026A1
Provided herein are systems and methods for utilizing aqua-ammonia as an energy or hydrogen storage and transport medium. A method for delivering power, the method comprises converting enriched ammonia to electrical power and heat; and using the heat to remove water from aqua-ammonia, thereby producing the enriched ammonia.
Absstract of: WO2025058339A1
The present invention relates to a copper-nickel-iron double layer hydroxide nanoprism, a manufacturing method thereof, and a use thereof as a water electrolysis catalyst. The present invention discloses a catalytic electrode for water electrolysis, the catalytic electrode comprising: a metal foam; and a composite transition metal chalcogenide heterostructure formed on the metal foam. This catalytic electrode for water electrolysis can exhibit improved electrochemical catalytic activity for both a hydrogen evolution reaction (HER) and an oxygen evolution reaction (OER) in a water electrolysis reaction, can efficiently produce hydrogen with a lower energy supply than conventional noble metal electrodes, and can be used in both anion exchange membrane water electrolyzers and solar cell-water electrolysis systems. The present invention relates to a nanosphere hybrid structure containing nickel cobalt selenide and molybdenum selenide, and a use thereof as a water electrolysis catalyst. The present invention relates to a water electrolysis catalyst in which zinc cobalt sulfide and molybdenum disulfide are hetero-bonded, and a manufacturing method thereof.
Absstract of: WO2025058397A1
A multistage electrochemical hydrogen compressor according to an embodiment of the present invention may include: a stack for compressing hydrogen; and a current supply unit for applying a current to the stack, wherein the stack includes: a low-pressure end plate having an inlet through which low-pressure hydrogen is introduced; a high-pressure end plate having an outlet for discharging high-pressure hydrogen acquired by compressing the low-pressure hydrogen; a plurality of cells disposed between the low-pressure end plate and the high-pressure end plate; and a membrane-electrode assembly each disposed between the plurality of cells, and the current supply unit is connected to each of the plurality of cells to selectively control current application to the plurality of cells.
Absstract of: WO2025058260A1
An apparatus integrated with floating offshore wind power for producing offshore green hydrogen, according to one embodiment, comprises: an offshore wind power generator; a hydrogen production system for producing hydrogen by using seawater; a control unit for controlling at least one portion of the hydrogen production system; and a power source unit for supplying power to at least one portion of the hydrogen production system or the control unit.
Absstract of: WO2025055403A1
A hydrogen drying system for hydrogen production using renewable energy. Two adsorbers (1, 2) are arranged in parallel, the two adsorbers (1, 2) alternately perform an adsorption process and a desorption process, the adsorption flow of each of the adsorbers (1, 2) changes along with the fluctuations of input renewable energy, and an operating state of each of the adsorbers (1, 2) is switched by means of accumulating the hydrogen flow treated by each of the adsorbers (1, 2) during a single adsorption process; a pre-adsorber (3) is connected in series to one of the adsorbers (1, 2) and is used for assisting in the desorption process; and during the desorption process, hydrogen in the pre-adsorber (3) or the adsorbers (1, 2) is circulated by means of a hydrogen self-circulation apparatus (4), and the desorption process is independent of the adsorption process. Since the adsorption process and the desorption process are independent of each other, after a raw gas enters the adsorbers (1, 2) and absorption is completed, all the raw gas is output; and during the desorption process, hydrogen in the pre-adsorber (3) or the adsorbers (1, 2) is circulated by means of the hydrogen self-circulation apparatus (4) to realize hydrogen regeneration, so that the problem of desorption being incomplete due to desorption interruption caused by the flow fluctuations of the raw hydrogen is solved, intermittent and fluctuating renewable energy can be matched to perform hydrogen production, and an op
Absstract of: US2025092537A1
In this disclosure, a process of recycling acid, base and the salt reagents required in the Li recovery process is introduced. A membrane electrolysis cell which incorporates an oxygen depolarized cathode is implemented to generate the required chemicals onsite. The system can utilize a portion of the salar brine or other lithium-containing brine or solid waste to generate hydrochloric or sulfuric acid, sodium hydroxide and carbonate salts. Simultaneous generation of acid and base allows for taking advantage of both chemicals during the conventional Li recovery from brines and mineral rocks. The desalinated water can also be used for the washing steps on the recovery process or returned into the evaporation ponds. The method also can be used for the direct conversion of lithium salts to the high value LiOH product. The method does not produce any solid effluent which makes it easy-to-adopt for use in existing industrial Li recovery plants.
Nº publicación: US2025092323A1 20/03/2025
Applicant:
WILD HYDROGEN LTD [GB]
WILD HYDROGEN LIMITED
Absstract of: US2025092323A1
There is provided a method and apparatus for producing hydrogen gas from biogenic material (210) within a pressure vessel (10). The method comprises heating a granular material (15) to greater than 500° C., adding a batch of biogenic material (210) into the pressure vessel with the heated granular material (15) at atmospheric pressure, closing the pressure vessel, and mixing the heated granular material (15) with the biogenic material (210) inside the closed pressure vessel (10) to raise the temperature of the biogenic material (210) and commence gasification, the gasification producing gas that increases the pressure inside the pressure vessel (10), the produced gas comprising hydrogen gas.
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