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1050
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Updated on
22/10/2025 [07:11:00]
Results 25 to 50 of 1050
Absstract of: WO2025217599A1
A method can include performing a series of reactions in a closed cycle, the series of reactions consisting of a hydrolysis reaction where a redox reagent is oxidized to a corresponding oxidized redox reagent with water contemporaneously with the production of hydrogen; and a reduction reaction where the oxidized redox reagent is reduced to the redox reagent using a sulfurous reactant contemporaneously with production of sulfur dioxide.
Absstract of: US2025320118A1
A method can include performing a series of reactions in a closed cycle, the series of reactions consisting of a hydrolysis reaction where a redox reagent is oxidized to a corresponding oxidized redox reagent with water contemporaneously with the production of hydrogen; and a reduction reaction where the oxidized redox reagent is reduced to the redox reagent using a sulfurous reactant contemporaneously with production of sulfur dioxide.
Absstract of: WO2025217582A1
Embodiments of the present disclosure provide for a processing system and methods for carbon capture and emissions reduction associated with industrial processes. The processing system includes an electrolysis plant, a first kiln, a second kiln, and a carbon capture system. The electrolysis plant configured to generate oxygen and hydrogen from a first amount of water. The first kiln is configured to receive the oxygen generated by the electrolysis plant and to produce a second amount of water, a commercial product, and flue gas via an oxy-combustion reaction. The second kiln is configured to receive the hydrogen generated by the electrolysis plant and to produce a third amount of water, the commercial product, and an exhaust gas via a combustion reaction. The carbon capture system is configured to receive flue gas from the first kiln.
Absstract of: WO2025215257A1
The invention relates to generating fuel for an internal combustion engine such as a piston engine or a gas turbine. The invention relates to a system, apparatuses and methods for producing hydrogen and for hydrogen fuel enhancement. The invention relates in particular to an electrolyser that comprises an electrolyser housing enclosing an interior space that is adapted for containing a water reservoir. The electrolyser housing comprises a side wall and a top cover and a bottom cover that are tightly connected to the side wall. The electrolyser further comprises a plurality of elongate electrodes that extend from the bottom cover and/or the top cover into the interior space enclosed by the electrolyser housing. The electrodes are electrically isolated from the electrolyser housing and are electrically connected to electric conductors for feeding DC current to the electrodes. The electric connections are configured to connect electrodes acting as cathodes to a negative voltage terminal of a DC electric power source and to connect electrodes acting as anodes to a positive voltage terminal of a DC electric power source.. The invention further relates to a method of producing hydrogen enhanced hydrocarbon fuel comprising the steps of. - producing hydrogen from water by means of an electrolyser - vaporizing hydrocarbon fuel - mixing the hydrogen and the vaporized hydrocarbon fuel - compressing the mixture of hydrogen and the vaporized hydrocarbon fuel, and - ionizing the compressed
Absstract of: WO2025214668A1
A method for producing hydrogen gas from non-purified water via sulphur depolarized electrolysis (SDE), said method comprises the steps of providing at least one electrochemical cell (2), which comprises at least one positive electrode (A) and at least one negative electrode (C), separated by a proton conductive membrane (3), non-purified water supply means (S1) configured to supply non-purified water to the cathode, sulphur dioxide supply means (S2) configured to supply sulphur dioxide to the anode, electrical connecting means (4) configured to connect the anode (A) and the cathode (C) to an external power source (P), supplying non-purified water to the cathode, supplying sulphur dioxide to the anode, applying a voltage of at least 0.45 V and up to 1.37 V to the electrodes (A, C) to cause an electrolysis reaction that produces hydrogen gas at the cathode and sulphuric acid at the anode, removing produced hydrogen gas from the cathode and produced sulphuric acid from the anode.
Absstract of: CN119866394A
A method for producing an ion conducting membrane comprising a membrane layer comprising a reconstitution catalyst. The film layer is made from an ink comprising a stabilized dispersion of reconstitution catalyst nanoparticles. Also provided are ion conducting membranes for electrochemical devices, such as fuel cells or water electrolysers, having a membrane layer comprising a reconstitution catalyst, the membrane layer comprising dispersed reconstitution catalyst nanoparticles, a nanoparticle stabilizer, and an ion conducting polymer.
Absstract of: US2024145732A1
Provided is a catalyst excellent in both oxygen reduction catalytic performance and oxygen evolution catalytic performance and making effective use of biomass, a manufacturing method thereof, an electrode for a metal-air secondary battery or a water electrolysis system containing the catalyst, and a metal-air secondary battery or a water electrolysis system containing the electrode.Provided is a catalyst containing a calcined product of a mixture including biomass-derived cellulose nanofibers and a dry matter containing proteins or amino acids, a manufacturing method thereof, an electrode for a metal-air secondary battery or an electrode for a water electrolysis system containing the catalyst, and a metal-air secondary battery or a water electrolysis system containing the electrode.
Absstract of: GB2640128A
A catalyst-coated membrane (10) for a water electrolyser is provided. The catalyst-coated membrane comprises a polymer electrolyte membrane with an anode catalyst layer (12) on a first side of the membrane (14). The anode catalyst layer (12) comprises an oxygen evolution reaction catalyst containing at least one noble metal at a loading of the oxygen evolution reaction catalyst, based on the noble metal content, of less than or equal to 0.6 mg/cm2 . The polymer electrolyte membrane comprises a membrane layer comprising dispersed platinum group metal-containing nanoparticles (20), a nanoparticle stabilising agent and an ion-conducting polymer.
Absstract of: EP4632109A1
The present disclosure relates to systems and methods for increasing efficiency and performance by balancing pressure in electrolytic cell. The present disclosure relates to systems and methods of utilizing different valves for controlling absolute pressure and differential in the electrolytic cell system based on hydrogen demand and the operating state of the system.
Absstract of: EP4631617A1
The present invention pertains to an ammonia decomposing catalyst and a method for producing same. More specifically, the present invention pertains to: an ammonia decomposing catalyst containing an MgAl<sub>2</sub>O<sub>4</sub> spinel support and ruthenium, the content of ruthenium being 0.1-5 wt% of the total weight of the catalyst; and a method for producing same.
Absstract of: EP4632113A1
The electrolysis cell according to the present disclosure includes: a first separator including a first surface; a second separator disposed with an accommodating space apart from the first separator, the second separator including a second surface facing the first surface; an ion-exchange membrane disposed in the accommodation space; a first power feeder disposed between the first separator and the ion-exchange membrane; a first catalyst layer disposed between the first power feeder and the ion-exchange membrane; a second power feeder disposed between the second separator and the ion-exchange membrane; a second catalyst layer disposed between the second power feeder and the ion-exchange membrane; and a flow direction changing part provided as a part of the first separator or disposed between the first separator and the first power feeder, the flow direction changing part changing a flow direction of at least a portion of an electrolyte flowing along the first surface in a first direction to a second direction intersecting the first surface at each of a plurality of positions in the first direction.
Absstract of: CN120187948A
A hydrogen production system comprising a wind turbine facility comprising a wind turbine generator (18) connected to a hydrogen electrolyser (30) by a power converter system (22). A power converter system (22) includes a generator-side converter (24) and an electrolyzer-side converter (26) electrically coupled together by a DC link (28), and a converter controller (50) including a generator-side control module (50) coupled to the generator-side converter and an electrolyzer-side control module (52) coupled to the electrolyzer-side converter. The converter controller is configured to control the load torque on the wind turbine generator and the electrical power fed to the electrolysis cell to achieve a mechanical damping function associated with the wind turbine facility while maintaining a stable DC link voltage. Accordingly, advantageously, the wind turbine facility can achieve active control of the electromechanical damping system while operating the electrolysis cell at an effective operating point.
Absstract of: EP4632107A1
A method for producing hydrogen gas from non-purified water via sulphur depolarized electrolysis (SDE), said method comprises the steps of providing at least one electrochemical cell (2), which comprises at least one positive electrode (A) and at least one negative electrode (C), separated by a proton conductive membrane (3), non-purified water supply means (51) configured to supply non-purified water to the cathode, sulphur dioxide supply means (S2) configured to supply sulphur dioxide to the anode, electrical connecting means (4) configured to connect the anode (A) and the cathode (C) to an external power source (P), supplying non-purified water to the cathode, supplying sulphur dioxide to the anode, applying a voltage of at least 0.45 V and up to 1.37 V to the electrodes (A, C) to cause an electrolysis reaction that produces hydrogen gas at the cathode and sulphuric acid at the anode, removing produced hydrogen gas from the cathode and produced sulphuric acid from the anode.
Absstract of: EP4632214A1
The invention relates to generating fuel for an internal combustion engine such as a piston engine or a gas turbine. The invention relates to a system, apparatuses and methods for producing hydrogen and for hydrogen fuel enhancement. The invention relates in particular to an electrolyser that comprises an electrolyser housing enclosing an interior space that is adapted for containing a water reservoir. The electrolyser housing comprises a side wall and a top cover and a bottom cover that are tightly connected to the side wall. The electrolyser further comprises a plurality of elongate electrodes that extend from the bottom cover and/or the top cover into the interior space enclosed by the electrolyser housing. The electrodes are electrically isolated from the electrolyser housing and are electrically connected to electric conductors for feeding DC current to the electrodes. The electric connections are configured to connect electrodes acting as cathodes to a negative voltage terminal of a DC electric power source and to connect electrodes acting as anodes to a positive voltage terminal of a DC electric power source..The invention further relates to a method of producing hydrogen enhanced hydrocarbon fuel comprising the steps of.- producing hydrogen from water by means of an electrolyser- vaporizing hydrocarbon fuel- mixing the hydrogen and the vaporized hydrocarbon fuel- compressing the mixture of hydrogen and the vaporized hydrocarbon fuel, and- ionizing the compressed mixtu
Absstract of: EP4631606A2
There is provided a system for preparing lithium hydroxide. The system comprises:an electrolysis cell, defining an anodic compartment separated from a central compartment by an anion exchange membrane and a cathodic compartment separated from said central compartment by a cation exchange membrane. The central compartment comprising at least one inlet for receiving an aqueous composition comprising lithium compound. The cathodic compartment comprises at least one cathode wherein said cathode is configured to produce a lithium hydroxide-enriched aqueous composition. A pH probe and at least one inlet for receiving acid or base for at least substantially maintaining the pH of said aqueous composition comprising said lithium compound at about 1 to about 4 is also provided.
Absstract of: EP4632108A1
A gas management system includes an anodic chamber, a cathodic chamber, and a membrane assembly configured to remove bubbles from an electrochemical cell to increase hydrogen generation of the electrochemical cell. The membrane assembly includes a first outer layer arranged between the cathodic chamber and the anodic chamber, a second outer layer arranged between the first outer layer and the cathodic chamber, and a spacer layer arranged between the first outer layer and the second outer layer.
Absstract of: WO2025170193A1
The present invention provides: a ruthenium catalyst for ammonia decomposition, the ruthenium catalyst having excellent ammonia decomposition activity; and a method for producing same. The ruthenium catalyst exhibits a conversion rate close to 100% at a reaction temperature of 550 °C, exhibits a conversion rate of at least 93.6% even at 500 °C, and exhibits a conversion rate of at least about 60%, even at a low reaction temperature of 450 °C, and thus has high activity, even in a large-scale decomposition process of a relatively low temperature, while having a low production cost, therefore making the ammonia decomposition process economical.
Absstract of: US2025313974A1
The present disclosure relates to systems and methods for increasing efficiency and performance by balancing pressure in electrolytic cell. The present disclosure relates to systems and methods of utilizing different valves for controlling absolute pressure and differential in the electrolytic cell system based on hydrogen demand and the operating state of the system.
Absstract of: JP2025155353A
【課題】製品としての水素の品質が低下してしまうことを抑制しつつ、陽極及び陰極を保護する。【解決手段】電解システムは、陽極を有する陽極室及び陰極を有する陰極室を備える電解槽と、電解槽の電解液の電気分解が進む通電方向に陽極及び陰極に電流を供給可能な整流器とを含む。電解システムの制御方法は、電解システムの運転停止中、通電方向に陽極及び陰極に保護電流を整流器によって供給することと、電解システムの運転停止中、陰極室に水素ガスを供給し、陽極室に酸素ガスを供給することとを含む。【選択図】図１
Absstract of: US2023243054A1
A separator for alkaline electrolysis comprising a porous support (10) and a first (20b) and second (30b) porous layer provided on respectively one side and the other side of the porous support, characterized in that the porous support has a thickness (d1) of 150 μm or less and the total thickness (d2) of the separator is less than 250 μm. Also a method is disclosed wherewith such a separator may be prepared.
Absstract of: US2025305165A1
The present disclosure relates to an oxygen electrode for solid oxide electrolysis cell and a method of manufacturing the same.
Absstract of: CN120322494A
The present invention relates to a basic anion exchange membrane precursor (pAAEM) comprising a blend of at least one first polymer (P1) comprising recurring units derived from acrylonitrile and at least one second polymer (P2) comprising recurring units derived from vinyl lactam; and to an alkaline anion exchange membrane (AAEM) obtained therefrom.
Absstract of: KR20250144764A
본 발명은 니켈 및 바나듐을 일정 비율로 포함하는 수소발생반응용 촉매에 관한 것으로, 본 발명의 촉매는 종래의 귀금속 대비 동등 이상의 촉매 활성을 나타낼 수 있고, 수소 발생 효율이 높으며 비담수 조건에서도 우수한 안정성을 나타낼 수 있다.
Absstract of: US2025313969A1
This specification relates to a membrane electrode assembly for hydrogen production, an electrochemical cell comprising the same, and a method for hydrogen production using the same. According to an embodiment of the present invention, the membrane electrode assembly for hydrogen production, the electrochemical cell comprising the same, and the method for hydrogen production using the same can improve ammonia electrolysis durability by preventing performance degradation due to catalyst poisoning and restoring the performance.
Nº publicación: JP2025154296A 10/10/2025
Applicant:
三菱重工業株式会社
Absstract of: WO2025204109A1
The purpose of the present invention is to improve the energy efficiency of a hydrogen production system as a whole. A hydrogen production system (1) produces hydrogen. The hydrogen production system (1) is provided with: an SOEC (10) that is supplied with an oxidizing gas and steam and generates hydrogen by electrolyzing the supplied steam; a steam generation unit (20) that generates the steam supplied to the SOEC (10) by heating feed water; and a power supply device (40) that supplies power to the SOEC (10) so that the SOEC (10) operates at an operation point exceeding a thermal neutral point. The steam generation unit (20) uses heat generated in the SOEC (10) to heat the feed water, and generates the steam without using heat supplied from outside of the hydrogen production system (1).
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