Alerta

ELECTROCHEMICAL CELL AND METHOD FOR PRODUCING HYDROGEN AND OXYGEN FROM WATER

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).

HYDROGEN PRODUCTION SYSTEM AND CONTROL METHOD THEREFOR

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.

PURIFICATION OF ELECTROLYTIC HYDROGEN

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.

BALANCE-OF-PLANT FOR ELECTRO-SYNTHETIC OR ELECTRO-ENERGY LIQUID-GAS CELLS OR CELL STACKS

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).

Hydrogen Electrolysis using Pulsed DC Signal

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.

METHOD OF PRODUCING GREEN STEEL

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 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, 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 (FeSO₄ or Fe₂(SO₄)₃),iii. production of MgSO₄ or (NH₄)₂SO₄, andiv. production of concentrated sulfuric acid.

ELECTROLYSER

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.

Offshore hydrogen production sytems and methods

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.

アンモニア分解による電気化学的水素生成

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.

アンモニアの合成システム

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

水素発生組成物、水素発生システムおよび燃料電池システム

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

アンモニアの合成システム

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

수소 저장 방법 및 시스템

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

반도체 촉매, 촉매 전극, 환원물의 제조 방법, 환원물 생성 장치

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.

회수식 열교환 반응기를 이용한 암모니아 분해 공정

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.

System for producing hydrogen based on composite energy using water recovery

Absstract of: KR20240175881A

Provided is the complex energy base hydrogen production system utilizing the solar energy and sunlight complex energy and produces the hydrogen. The complex energy-based hydrogen generation system comprises: a complex energy block collecting solar energy to generate hot water or electricity; a hydrogen generation block generating hydrogen by using the generated hot water; and an electricity supply block storing or supplying the generated electricity.

Multilayer structure anode transport porous layer manufacturing method and anode porous transport layer manufactured using the same

Absstract of: KR20260002446A

본 발명은 다층구조 애노드 다공막과 관련된다. 본 발명은 실시예로 양성자 교환막 수전해 장치의 애노드에 사용되는 다공막으로서, 기공률이 30~50%인 대립자 금속소재를 포함하여 이루어진 애노드 다공막 상에, 기공률이 10~30%인 소립자 금속소재를 포함하는 다공 구조의 인쇄층이 적층되어 결합된 다층구조 애노드 다공막을 제시한다.

Gas turbine plant with ammonia decomposition system

Absstract of: KR20240171449A

According to an embodiment of the present invention, provided is a gas turbine plant including an ammonia decomposition system, wherein the gas turbine plant includes: a storage tank storing liquid ammonia; a supply pump supplying the liquid ammonia of the storage tank; a preheater preheating the liquid ammonia supplied by the supply pump; a vaporizer vaporizing the liquid ammonia preheated in the preheater; a superheater superheating the gas ammonia vaporized in the vaporizer; a decomposition reactor pyrolyzing the gas ammonia superheated in the superheater; an ammonia absorption tower separating residual ammonia from the decomposed gas decomposed in the decomposition reactor and generating synthesis gas composed of hydrogen and nitrogen; and an ammonia regeneration tower regenerating ammonia by evaporating the ammonia from ammonia water generated from the residual ammonia dissolved in water in the ammonia absorption tower, wherein the synthesis gas generated in the ammonia absorption tower is supplied to the first combustor of the gas turbine.

ULTRASONIC EXCITATION SYSTEM FOR POWER-EFFICIENT HYDROGEN PRODUCTION

Absstract of: KR20260001663A

본 발명은 수전해 기술을 이용한 수소 생산 시 초음파를 이용하여 전극 표면에 생성되는 수소 기포층의 두께를 조절하되, 초음파 가진 및 휴지 시간을 적절하게 제어함으로써 수소를 생산하는데 소요되는 전력을 저감할 수 있도록 한 초음파 가진 시스템에 관한 것이다.

チタン板、加工品、プレート式熱交換器、および固体高分子型水電解装置

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

Cathode for alkaline water electrolysis comprising catalyst-supporting gas diffusion layer and manufacturing method thereof

Absstract of: KR20260002444A

본 발명은 알칼리 수전해 스택에서 단위전지를 구성하는 전극 중 음극 및 그의 제조 방법에 관한 것으로, 지지체를 배제한 묶음 전극을 포함하고, 묶음 전극은 촉매 슬러리가 직접적으로 담지 된 가스확산층으로 구성되어, 촉매 슬러리를 지지체에 담지하지 않아 묶음 전극의 두께를 0.5 내지 3 mm로 감소시키는 것을 특징으로 한다. 기존의 촉매 담지 기술에 비해 간편하고 경제적으로 전극을 제조하는 기술로써 전도성 고분자를 바인더로 사용하여 촉매 담지 가스확산층을 포함하는 알칼리 수전해용 음극 및 그의 제조 방법에 관한 것이다.

다기능 바이폴라 플레이트, 전해 셀 및 이를 포함하는 전해조

Absstract of: CN120787270A

The invention relates to a bipolar plate (14) for an electrolytic cell (10), comprising a central web (141) and a ring (142) surrounding the central web (141). The ring (142) is made of synthetic material, and the central web (141) is made of metal and has an outer periphery embedded in the ring (142). The invention also relates to an electrolytic cell and to an electrolytic cell stack comprising such a bipolar plate.

낮은 누설 전류를 갖는 전해조 스택

Absstract of: CN120936751A

Disclosed is an electrolytic cell stack comprising: two substrates between which an element stack including an electrolytic cell is sandwiched; and at least one intermediate plate (30), which is clamped in the element stack. The intermediate plate (30) has a thickness within which at least one electrolyte supply line, a first line for discharging a first electrolytic product and a second line (33) for discharging a second electrolytic product are arranged, the at least one electrolyte supply conduit, the first conduit, and the second conduit are integrated with the supply network, the first discharge network, and the second discharge network, respectively. The length of each of said conduits (33) in the intermediate plate (30) has a greater thickness than the intermediate plate (30) and comprises a curved section (34) connecting the inlet and outlet orifices to each other.

가변 개수의 활성 전해 셀을 가진 전해조

Absstract of: AU2024222987A1

A system, comprising: an electrolyzer having a plurality of electrolysis cells arranged in a cell stack, wherein the electrolysis cells are electrically connected in series and grouped into two or more cell groups, each cell group having an electrical contact at either end; an electrical circuit having one or more switches, each switch coupled between the electrical contacts of a respective one of the cell groups and configured to selectively disconnect the cell group from the cell stack by electrically bypassing the cell group via a lower resistance path, to thereby vary the number of active electrolysis cells in the cell stack; and a controller configured to determine the number of active electrolysis cells based on a variable amount of direct current (DC) electrical energy supplied to the cell stack by an electrical energy source, and to control the one or more switches based on the determination.

복수의 개별 전해조 스택들을 포함하는 전해조 유닛 및 유닛들을 형성하도록 전해조 스택들을 연결하는 방법

Nº publicación: KR20260002615A 06/01/2026

Applicant:

그린하이드로겐시스템즈에이에스

Absstract of: AU2024221020A1

The invention comprises a method for connecting a pair of electrolyser stacks with electrolyte, electric current and gas drain piping. Accordingly, each pair of stacks of the electrolyser: - through interconnection endplates are supplied with alkaline electrolyte at elevated pressure by common electrolyte supply pipes and further, - through the interconnection endplate drain off oxygen gas containing electrolyte, and hydrogen gas containing electrolyte, to common gas separation vessels for oxygen and hydrogen respectively, - pull first electrically interconnected current injection electrodes adjacent to interconnection endplates to zero electrical potential through a zero potential conductor, and - supply second current injection electrodes placed adjacent to distal endplates with electric current at potentials equally higher and lower respectively than the zero potential at the first electrodes.