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369
results.
Updated on
16/02/2026 [06:57:00]
Results 200 to 225 of 369
Absstract of: 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.
Absstract of: 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.
Absstract of: WO2026008968A1
Oxygen evolution reaction (OER) catalyst materials are provided comprising an iridium- containing compound on a particulate catalyst support, the OER catalyst material having the following characteristics: (i) a BET surface area in the range of and including 5 to 20 m2/g; (ii) an iridium content in the range of and including 25 to 50 wt%; and (iii) a Tmax in the temperature-programmed reduction profile of the OER catalyst material is in the range of and including 145 to 180 °C.
Absstract of: WO2026008847A1
The present invention relates to a method of producing green steel by reduction of iron oxides using hydrogen. The inventive method makes use of mining waste as starting material for H2 generation by SDE process or a sulfur-iodine-process. Side products can be utilized in the steelmaking process. This is achieved by a method according to the present invention comprising the following steps: a) a part or all of the iron oxide used as raw material for steelmaking is reduced by hydrogen, b) a part or all hydrogen required for the reduction of iron oxide is generated via a SO2-depolarized electrolyzer (SDE) process or a sulfur-iodine-process, and c) a part or all of the diluted sulfuric acid obtained from step b) is used for at least one of i. steel pickling, ii. reaction with steel mill dust for generation of iron sulfate (FeSO4 or Fe2(SO4)3), and iii. increasing the concentration of said diluted sulfuric acid by vacuum evaporation of water using off-heat from steelmaking or pyrite roasting.
Absstract of: WO2026008367A1
An offshore hydrogen production system is described comprising: a hydrogen production facility (10) comprising a power generator (70) configured to convert a source of renewable energy to electrical power 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 described is a method of producing hydrogen, a method of designing an offshore hydrogen production system, a method for the production of an offshore hydrogen production system.
Absstract of: AU2024202934A1
Disclosed in one example is gas pressure equalisation systems (400-401), and method of operation, for an electro-synthetic or electro-energy liquid-gas cell or cell stack (210). The gas pressure equalisation systems (400-401) comprise a first pressure equalisation tank (410) for partially containing a first liquid (470) and a first gas. The first gas is positioned above a liquid first level (471). A first gas conduit (430) is provided for the transfer of the first gas between the cell or cell stack (210) and the first pressure equalisation tank (410). In another example, a second pressure equalisation tank (420) may be additionally provided for partially containing a second liquid (473) and a second gas positioned above a liquid second level (472). A second gas conduit (440) is then provided for the transfer of the second gas between the cell or cell stack (210) and the second pressure equalisation tank (420).
Absstract of: GB2642174A
An electrolysis system 200 for generating hydrogen and/or oxygen is defined. The system comprising: a first electrolysis apparatus 220, such as an electrolysis stack or cell. The system comprising at least one electrode for the decomposition of electrolyte water. A power supply unit is defined for supplying electric power to the first electrolysis apparatus 220. The power supply unit comprises a first diode for converting an AC input signal to a first pulsed DC signal, said first pulsed DC signal being a first half wave of the AC input signal; where the first electrolysis apparatus 220 is connected to the power supply unit in such a way that the first electrolysis apparatus 220 is supplied with the first pulsed DC signal. The power supply apparatus may comprise a centre tapped full wave rectifier. The electrolysis system may be used for the decomposition of ammonia.
Absstract of: CN120981286A
Provided is a semiconductor catalyst which exhibits an effect of promoting a reduction reaction by irradiation with visible light and which has excellent durability. This semiconductor catalyst is configured from a thin film containing nitrogen-containing diamond particles in the planar direction and the height direction. The semiconductor catalyst can be produced, for example, by performing the following step 1 and then performing the following step 2 at least once. Step 1: A step for fixing, on a substrate having a positive charge or a negative charge, nitrogen-containing diamond particles having a positive charge or a negative charge, the nitrogen-containing diamond particles having an electric charge opposite to the electric charge of the substrate. Step 2: a step for laminating nitrogen-containing diamond particles having a positive charge or a negative charge on the fixed nitrogen-containing diamond particles, the nitrogen-containing diamond particles having a charge opposite to that of the fixed nitrogen-containing diamond particles.
Absstract of: 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
Absstract of: 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.
Absstract of: EP4674988A1
The present invention relates to a method of producing green steel by reduction of iron oxides using hydrogen. The inventive method makes use of mining waste as starting material for H<sub>2</sub> generation by SDE process or a sulfur-iodine-process. Side products can be utilized in the steelmaking process.This is achieved by a method according to the present invention comprising the following steps:a) a part or all of the iron oxide used as raw material for steelmaking is reduced by hydrogen,b) a part or all hydrogen required for the reduction of iron oxide is generated via a SO<sub>2</sub>-depolarized electrolyzer (SDE) process or a sulfur-iodine-process, andc) diluted sulfuric acid obtained from step b) is used for at least one ofi. steel pickling,ii. reaction with steel mill dust for generation of iron sulfate (FeSO<sub>4</sub> or Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>),iii. production of MgSO<sub>4</sub> or (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub>, andiv. production of concentrated sulfuric acid.
Absstract of: 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.
Absstract of: 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.
Absstract of: EP4675012A1
The present invention relates to a hydrogen production system and a control method therefor. The method comprises: determining operation parameter information of the hydrogen production system according to output information of a new energy power generation device; and, according to the operation parameter information and operation demand information of the hydrogen production system, selecting a switching-on mode and a switching-off mode from amongst a plurality of preset modes of hydrogen production units of the hydrogen production system. On the basis of the output information of the new energy power generation device and the operation conditions of the hydrogen production system, the present invention performs selection of switching-on and switching-off of the hydrogen production units, thus improving the operation efficiency of the hydrogen production system.
Absstract of: AU2024262055A1
A family of catalysts for oxygen evolution reaction (OER) in alkaline condition is disclosed. The catalysts utilize elements which are abundant on earth, leading to lower costs compared to IrCh catalysts. The catalysts can be used in the anode of an anion exchange membrane-based water electrolyzer. The family of new catalysts comprises Ni, Fe, M, B, and O, where M is a metal from Group VIB, Group VIII, and elements 57-71 of the Periodic Table. The catalyst has a layered double hydroxide structure. Methods of making the catalysts are also described.
Absstract of: 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).
Absstract of: 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.
Absstract of: 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.
Absstract of: WO2024129246A1
Herein discussed is a method of producing hydrogen comprising: (a) providing an electrochemical reactor having an anode, a cathode, and a membrane between the anode and the cathode, wherein the membrane conducts both electrons and protons, wherein the anode and cathode are porous; (b) introducing a first stream to the anode, wherein the first stream comprises ammonia or a cracked ammonia product; and (c) extracting a second stream from the cathode, wherein the second stream comprises hydrogen, wherein the first stream and the second stream are separated by the membrane.
Absstract of: JP2026001372A
【課題】原料ガスの利用効率を向上できるアンモニアの合成システムを提供する。【解決手段】合成システムは、原料ガスに含まれる水蒸気の電気分解により水素を発生する電気化学セルと、電気化学セルが発生した水素と原料ガスに含まれる窒素との化学反応により得られる生成物と未反応物とを分離する分離装置と、分離装置によって分離された未反応物の量を検知する検知装置と、未反応物を原料ガスに混合する再投入部と、未反応物の量に基づき、未反応物が補われる原料ガスの中の水蒸気の量および窒素の量の少なくとも一方を調整する制御装置と、を備える。【選択図】図１
Absstract of: JP2026001566A
【課題】外部刺激により水素を発生することができる水素発生組成物、並びに、水素発生組成物を備える水素発生システムおよび燃料電池システムを提供する。【解決手段】プロトンおよび電子を１つずつ受容した含窒素芳香族化合物を含む、水素発生組成物。前記プロトンおよび前記電子を供与する物質として、（ＢＨ）ｎ（ｎ≧４、但しｎは整数）からなる二次元ネットワークを有するホウ化水素含有シートを含む、水素発生組成物。【選択図】なし
Absstract of: JP2026001371A
【課題】原料ガスの上流部と下流部の反応の不均一性を低減できる合成システムを提供する。【解決手段】合成システムは、水素を発生するカソードを含む電気化学セルと、電気化学セルのカソードに面する反応場の上流部に窒素と水素とを含む第１の原料ガスを供給する第１の供給装置と、反応場の下流部に第２の原料ガスを供給する第２の供給装置と、を備え、第１の原料ガスに占める窒素と水素の比は非化学量論比である。【選択図】図１
Absstract of: JP2026000758A
【課題】クラックの発生を抑え、優れた潤滑性および耐摩耗性を有するチタン板を提供する。【解決手段】ラマン分光測定装置を用いて、チタン板の表面上での所定方向およびそれに直交する方向のそれぞれにおいてスポットの中心の間隔が２．５μｍとなるように８０点ずつ、合計６４００点で測定を行い、各測定点において、チタン炭化物等、アナターゼ、ルチル、および未検出の４つの面積比率を、合計が１００％となるように求めた際に、チタン炭化物等の面積比率の全測定点での平均値が３０．０％以上であり、アナターゼおよびルチルの合計面積比率の全測定点での平均値が１．０～５．０％であり、全測定点を、所定方向に１０等分し、かつ、所定方向に直交する方向に１０等分し、合計１００の区分に分けたときに、アナターゼおよびルチルの合計面積比率が２０．０％以上となる点が含まれる区分の数が１０個以上である、チタン板。【選択図】 なし
Absstract of: CN121039321A
A bipolar plate (14) for an electrolytic cell is disclosed, the bipolar plate comprising: at least one electrolyte supply conduit, a first discharge conduit for a first electrolytic product, and a second discharge conduit for a second electrolytic product; two plates (14.10, 14.20) joined together to define therebetween at least one hollow volume (20), each of the two plates (14.10, 14.20) joined together having a thicker annular rim forming an outer peripheral region (22) of the bipolar plate (14); a supply conduit for supplying a cooling fluid to the hollow volume (20); and a discharge conduit (19) for removing the cooling fluid from the hollow volume (20). An electrolytic cell comprising such a bipolar plate and an electrolytic cell stack are also disclosed.
Nº publicación: JP2026500373A 06/01/2026
Applicant:
トプソー・アクチエゼルスカベット
Absstract of: CN120476486A
A solid oxide cell stack has a combined flow distributor and contact enabler made of a pressed metal foil with diversion structures and contact regions between interconnect layers and cell layers in the stack.
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