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METHOD OF PRODUCING GREEN STEEL

Resumen de: 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.

Hydrogen Electrolysis using Pulsed DC Signal

Resumen de: 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.

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

Resumen de: 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).

アンモニアの合成システム

Resumen de: 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

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

Resumen de: 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

Resumen de: 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

アンモニア分解による電気化学的水素生成

Resumen de: 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.

WATER ELECTROLYSIS CATALYST

Resumen de: 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.

HYDROGEN PRODUCTION SYSTEM AND CONTROL METHOD THEREFOR

Resumen de: 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.

반도체 촉매, 촉매 전극, 환원물의 제조 방법, 환원물 생성 장치

Resumen de: 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.

System for producing hydrogen based on composite energy using water recovery

Resumen de: 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.

基底上的氧主导型超纳米双相催化反应材料

Resumen de: US20260009148A1

The present invention provides an oxygen-dominated supra-nano dual-phase catalytic reaction material, which includes a uniform oxygen-enriched amorphous shell and a core encapsulated within the uniform oxygen-enriched amorphous shell. This invention exhibits ultrahigh HER performance, a critical reaction in water splitting, making it suitable for application in hydrogen production industries, battery companies, new energy vehicle enterprises, and large power stations.

Gas turbine plant with ammonia decomposition system

Resumen de: 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.

ELECTROCHEMICAL DEVICE

Resumen de: US20260005264A1

The present disclosure relates to an electrochemical device including a membrane electrode assembly, a first separator including a manifold part through which a reaction fluid is introduced or discharged, a flow path part spaced apart from the manifold part, and a through-hole provided between the manifold part and the flow path part and configured to guide the reaction fluid, which has passed through the manifold part, to the flow path part, a first porous transport layer configured to entirely cover the flow path part and the through-hole and interposed between the membrane electrode assembly and the first separator, and a first protrusion pattern provided on the first separator, and configured to support the first porous transport layer on the first separator while defining a guide flow path configured to guide the reaction fluid, which has passed through the through-hole, to the flow path part.

ULTRASONIC EXCITATION SYSTEM FOR POWER-EFFICIENT HYDROGEN PRODUCTION

Resumen de: 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.

내질화성이 우수한 내열 합금

Resumen de: TW202509247A

Provided is a heat-resistant alloy having nitriding resistance and high temperature creep rupture strength. This heat-resistant alloy contains, in mass %, C: 0.2-0.6%, Si: more than 0% but not more than 2.5%, Mn: more than 0% but not more than 2.0%, P: 0.03% or less, S: 0.03% or less, Ni: 33.0-50.0%, Cr: 24.0-50.0%, the balance being Fe and impurities, and contains optionally Nb: more than 0% but not more than 1.8%, optionally rare-earth element: more than 0% but not more than 0.5%, optionally Ti: more than 0% but not more than 0.5% and/or Zr: more than 0% but not more than 0.5%, optionally W: more than 0% but not more than 2.0%, and/or Mo: more than 0% but not more than 0.5%.

통합 냉각 회로를 갖는 바이폴라 플레이트, 전해 전지 및 전해조 스택

Resumen de: 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.

전해 프로세스에서 가스 발생을 위한 전극

Resumen de: AU2024263112A1

The present invention relates to an electrode and in particular to an electrode suitable for gas evolution comprising a metal substrate and a catalytic coating. Such electrode can be used as an anode for the development of oxygen in electrolytic processes such as, for example, in the alkaline electrolysis of water.

전기화학 스택 및 이러한 스택을 위한 장착 어셈블리

Resumen de: WO2024223362A1

The invention provides an electrochemical stack (1) comprising a plurality of electrochemical cells (2) oriented horizontally and arranged between a top plate (4) and a bottom plate (3) of the stack (1), wherein the top plate (4) and the bottom plate (3) are braced relative to one another by a bracing means (5). At least one connection for supplying gaseous and/or liquid media to or removing them from the electrochemical cells (2) is provided on the top plate (4). The top plate (4) has suspension means (17) configured to fasten the electrochemical stack (1) to a frame (15), wherein the bottom plate (3) is free-floating. The mounting assembly for mounting the electrochemical stack comprises a frame (15), on which the electrochemical stack (1) rests with its suspension means (17) such that the bottom plate (3) is free-floating and the electrochemical cells (2) are oriented horizontally.

인클로저에 수소 및 산소 생성 장치를 인클로징하는 방법 및 수소 및 산소 생성 장치를 위해 구성된 인클로저

Resumen de: US20260002270A1

An 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.

다기능 바이폴라 플레이트, 전해 셀 및 이를 포함하는 전해조

Resumen de: 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.

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

Resumen de: 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.

가변 개수의 활성 전해 셀을 가진 전해조

Resumen de: 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.

낮은 누설 전류를 갖는 전해조 스택

Resumen de: 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.

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

Nº publicación: KR20260002444A 06/01/2026

Solicitante:

한국생산기술연구원

Resumen de: 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.