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HYDROGEN PRODUCTION SYSTEM AND HYDROGEN PRODUCTION METHOD

Resumen de: AU2025243755A1

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).

An Eco system MAR

Resumen de: GB2705217A

A process for climate-positive operation of a power generation system. A hydrogen H and natural gas HG fuel and compressed oxygen O are provided to a combustion chamber 303 to generate and provide a high temperature and high-pressure gas flow to drive a shaft 275 by expansion of the exhaust gas. A flow of expanded exhaust gas is provided to a heat recovery steam generator 201 to generate steam to drive a steam turbine 270. A flow of steam is provided from the heat recovery steam generator to a first electrolyzer 230 to produce hydrogen and oxygen gases. A flow of exhaust gas is provided from the heat recovery steam generator to a membrane separation system 281 for separation of residual gases, such as sulphur-dioxide, nitrogen-oxides and particulates, and a flow of carbon-dioxide gas and water vapor is provided from the membrane separation system to a second electrolyzer 701 to produce hydrogen gas, oxygen gas and magnesium carbonate. A flow is provided from the second electrolyzer to a gas monitoring system 298. Figure 10

ELECTROLYZER, USE, OPERATION AND A METHOD OF PRODUCTION THEREOF

Resumen de: WO2025113761A1

An electrolyzer stack (17) wherein each of the electrode compartments (5, 6) is delimited by the ion-transporting separator (15) and a bipolar plate (14) as well as a gasket (25) that is surrounding the electrode compartments (5, 6). An electrolyte manifold (27) extends along the stack (17) and through an opening (20) in each of the bipolar plates (14). The electrolyte manifold (27) is formed by multiple serially connected flow restrictors (28), of which one flow restrictor (28) is provided per cell (1) and inserted between neighbouring gaskets (25) and comprises a flow canal (30) having a canal inlet (30 A) and a canal outlet (30B), wherein the canal inlet (30 A) is provided in the throughput opening and fluid-flow connected to the electrolyte manifold (27) and the canal outlet (30B) is fluid-flow connected to one of the cells (1) for supply of electrolyte from the electrolyte manifold (27) to the respective cell (1). The canal is narrow and long for reducing shunt currents and for providing a pressure drop larger, for example at least 10 times higher, than a pressure drop along the electrolyte manifold (27).

HYDROGEN GENERATION APPARATUS

Resumen de: EP4818112A1

0001 A hydrogen generation apparatus includes a hydrogen generator, a primary coil circuit, a hydrogen compressor, and a hydrogen storage cylinder. The hydrogen generator includes a hydrogen generator body, a secondary coil, and an eddy current generating unit. The hydrogen generator body has a chamber, and is configured with a first inlet for introducing a first substance, a second inlet for introducing a second substance, an outlet and an exhaust port. The secondary coil is wound around the hydrogen generator body. The eddy current generating unit is disposed in the chamber corresponding to the secondary coil. The primary coil circuit is coupled to the secondary coil to induce the secondary coil to generate a high-voltage alternating current, thereby causing the eddy current generating unit to generate an eddy current and produce high temperature. A thermal cracking reaction is induced by the high temperature to generate hydrogen gas.

アンモニア原料流から水素生成物及び窒素生成物を生成するためのプロセス

Resumen de: EP4527790A1

The invention relates to a process (100) for producing a hydrogen product and a nitrogen product from an ammonia feed stream, comprising the following steps:• In a reactor, performing an endothermic cracking reaction of the ammonia feed stream (101) into a cracked gas comprising hydrogen and nitrogen,• In a main separation unit, performing a main separation (102) of said cracked gas stream, thus producing:- the hydrogen product,- a main separation unit tail gas comprising nitrogen and a residual portion of hydrogen,• In a secondary separation unit, performing a secondary separation (104) of the main separation unit tail gas into a secondary separation unit tail gas as the nitrogen product and a nitrogen depleted fuel stream• Routing (115) said fuel stream to a furnace to provide heat to the endothermic cracking reaction.

Electrolyser and method for operation thereof

Resumen de: GB2705198A

An electrolyser and a method for operating the electrolyser for producing hydrogen is described, The electrolyser and associated method mitigate performance degradation commonly resulting during shutdown periods. The electrolyser comprises a stack of electrolysis cells, a primary power supply and a secondary power supply. During periods Of operation the electrolyser is adapted to produce hydrogen when an electrical voltage from the primary power supply is applied to the stack, and during periods of non-operation, the secondary power supply is configured to apply an electrical voltage to the stack sufficient to inhibit degradation of the stack. The secondary power supply may be a battery or a capacitor configured to supply a voltage from 0.8-1.8V Figure 3

FLEXIBLE SHEET FOR ELECTROCHEMICAL CELLS FOR HYDROGEN PRODUCTION

Resumen de: EP4818385A1

0001 Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung eines leitfähigen Vliesstoffs bzw. einer Gasdiffusionsschicht für einen Elektrolyseur mit einer geringen plastischen Verformbarkeit und guten elastischen Eigenschaften sowie einen mit dem Verfahren erhältlichen leitfähigen Vliesstoff.

METHOD FOR OPERATING AN ELECTROLYSIS PLANT AND CORRESPONDING ELECTROLYSIS PLANT

Resumen de: EP4818365A1

0001 The invention relates to a method for operating an electrolysis plant (200) for producing hydrogen from water, wherein the electrolysis plant comprises electrolysis cells, the method comprising: Providing current operating parameter values (260) of plant operating parameters; Providing performance information (280), wherein the performance information comprises information about a performance of at least one component of the electrolysis plant; Determining, based on the performance information (280), a remaining service life (282) of the at least one component of the electrolysis plant; Determining operating setpoints (262) for the stack assemblies, based on: the current operating parameter values (260), the remaining service life of the at least one component of the electrolysis plant, and operating limits (284) of the stack assemblies or parts thereof, which exceed given respective operating limits; and Providing the operating setpoints (262) for operating the electrolysis plant.

SYSTEM AND METHOD FOR WATER TREATMENT

Resumen de: EP4818127A1

The present invention relates to an electrochemical system and method for water treatment and regeneration, with the simultaneous recovery of valuable by-products, particularly hydrogen. The system is designed to efficiently remove organic matter from wastewater streams while enabling the production and recovery of hydrogen and optionally other useful compounds.

A GREEN HYDROGEN PRODUCTION ARTIFICIAL INTELLIGENCE (AI) ASSISTANT

Resumen de: EP4818960A1

0001 A green hydrogen production system uses an AI operator assistant. Electrolysis sensors collect operating conditions of an automated electrolysis system (102). An artificial intelligence (AI) electrolysis prediction engine (112) uses the operating conditions to model electrolysis. The AI electrolysis prediction engine (112) models electrolysis using a both first principles model (304) and machine learning models of one or more degradation factors, such as electrolyzer degradation or electro-osmatic drag. The AI electrolysis prediction engine (112) hybridizes the models to generate initial set point scenarios for the electrolysis process. An AI operator assistant receives process characteristics from the operator, which are used to select a set point scenario. An automation control processor (106) then controls electrolysis in accordance with the selected settings. An AI observer engine (114), an AI reasoning engine (116), and an AI error minimization engine (118) perform different aspects of a process to observe the process, determine deviations, and predict further optimization.

ELECTROCHEMICAL CELL COMPRISING A COMPOSITE PROTON EXCHANGE MEMBRANES WITH INTERLAYER STRUCTURE

Resumen de: EP4818367A1

The development of more cost-effective and efficient proton exchange membrane (PEM) water electrolysis cells requires the use of thinner membranes with extended lifetimes and reduced gas crossover. The inventive approach to address these challenges involves the incorporation of radical scavengers to mitigate radical-induced ionomer degradation, along with gas recombination catalysts to promote the conversion of crossover hydrogen and oxygen to water inside the PEM. Each of the two catalyst types has its distinct chemical reaction characteristics, to which the design of the composite membrane is tailored through rational considerations. In various embodiments of the present invention, the positioning effects of Ce_0.5Zr_0.5O₂ and Pt interlayers in composite membranes for their respective roles in radical scavenging and gas recombination were investigated. Results reveal that placing a radical scavenger interlayer near the cathode notably reduces the ionomer degradation rate, compared to its placement near the anode, evidenced by a 61% ± 7% reduction in fluoride release rate. This is likely due to reactive oxygen species in the cell being predominantly generated at the cathode, which is closer to the radical scavenger interlayer in the former case. The Ce content in cerium-zirconium oxide was further optimized using an ex-situ Fenton test, with Ce_0.25Zr_0.75O₂ demonstrating the highest radical scavenging activity.

PROCESS AND PLANT FOR PRODUCING A SYNTHESIS PRODUCT

Resumen de: WO2025114080A1

The invention relates to a process (100) for producing a synthesis product (6), in which gaseous hydrogen (3) is provided by electrolysis (10) of water (1) and is subjected to a reaction (30) with one or more gaseous reactants (4) to form the synthesis product (6), wherein during a first process mode, the hydrogen (3) and the one or more reactants (4) are mixed to obtain a gaseous reaction mixture (5) and the gaseous reaction mixture (5), or a part thereof, is stored under pressure in a storage unit (20), and wherein during a second process mode the gaseous reaction mixture (5), or a part thereof, stored under pressure in the first process mode is taken from the storage unit (20) and fed to the reaction (30) to form the synthesis product (6). The invention also relates to a corresponding plant.

PROCESS FOR THE PRODUCTION OF HYDROGEN FROM AMMONIA

Resumen de: EP4563523A1

The invention relates to a process (100) for the production of hydrogen from ammonia comprising the following steps:- providing a water feed stream to a water electrolyzer (101);- performing a water electrolysis (102) of the water feed stream in the electrolyzer, producing an oxygen product stream and an electrolysis hydrogen stream;- providing an ammonia feed stream to an ammonia cracking reactor (103);- providing an oxidant stream (105) and performing a combustion reaction (106) with said oxidant stream, thereby generating heat;- in the ammonia cracking reactor, performing an endothermic reaction of ammonia cracking (104) of the ammonia feed stream with said generated heat;characterized in that the oxidant stream comprises at least a portion of the oxygen product stream produced by the water electrolysis of the water feed stream.

WATER-ELECTROLYSER ANODE, PEM WATER ELECTROLYSER, METHOD OF MANUFACTURE AND METHOD OF WATER ELECTROLYSIS

Resumen de: WO2025114716A1

A water-electrolyser anode for a proton exchange membrane (PEM) water electrolyser comprises: a transition metal oxychalcogenide catalyst having the formula ABxOy, wherein A is a transition metal and B is a chalcogenide, and wherein 0 < x < 2 and 0 < y < 2. Also provided are a proton exchange membrane (PEM) water electrolyser, a method of water electrolysis, use of a transition metal oxychalcogenide as a catalyst in an oxygen evolution reaction under acidic conditions, and a method of manufacturing an anode for an electrolyser.

METHOD OF REGENERATION OF METAL BORATE TO METAL BOROHYDRIDE USING GASEOUS HYDROGEN AND MECHANICAL PROCESSING

Resumen de: EP4818113A1

The present invention relates to a method of regenerating a metal borate to the corresponding metal borohydride by mechanical processing of said metal borate with the addition of gaseous hydrogen. In addition, the present invention relates to a metal borohydride obtained, preferably directly obtained, by the method according to the invention.

COMPONENTS FOR ELECTROLYTIC APPARATUS AND ELECTROLYTIC APPARATUS

Resumen de: EP4818371A1

0001 The present application provides for a component for an electrolytic apparatus, comprising: a stack formed by a first porous transmission layer, a first electrode layer, a membrane, a second electrode layer, and a second porous transmission layer stacked in sequence along a stacking direction; a seal disposed about the stack in a lateral direction perpendicular to the stacking direction; and a first electrode frame comprising a first retaining portion and a second electrode frame comprising a second retaining portion. The first and second retaining portions mate with each other to maintain the first and second electrode frames as an integral structure, such that the first and second electrode frames retain the stack and the seal therebetween. The first porous transmission layer is at least partially disposed in the opening of the first electrode frame. Aside edge of the first porous transmission layer and the interior wall of the opening mate with each other in a shape-locked manner such that the first porous transmission layer is retained by the first electrode frame. The present application also provides an electrolytic apparatus comprising the aforementioned component. The component and the electrolytic apparatus according to the present application are easy to manufacture, assemble, and maintain.

MULTIPOWERED ELECTROLYSIS FACILITY

Resumen de: EP4818363A1

0001 A multipowered electrolysis facility (2) having a power balance unit (6) that receives incoming power from a power source (4) and manages electron flow (8) from the power source (4); a first electrolysis unit (10) that receives the managed electron flow (8) from the power balance unit (6), and is individually attuned and cooperatively integrated to operate at a first power range of 10-500 MW; a second electrolysis unit (12) that receives the managed electron flow (8) from the power balance unit (6), and is individually attuned and cooperatively integrated to operate at a second power range of 10-500 MW; a cooling/heating unit (20) operatively connected to the electrolysis units (10, 12) to provide coolant/heated flow from the cooling/heating unit (20) to the electrolysis units (10, 12) for efficient electrolysis within the electrolysis units (10, 12); and a fluid purification unit (30) operatively connected to the electrolysis units (10, 12) to provide purified fluid flow from the purification unit (30) to the electrolysis units (10, 12) for efficient electrolysis within the electrolysis units (10, 12), whereby the electrolysis units (10, 12) produce hydrogen (40) and oxygen (42) that each may be made use of, stored, transported, discarded or otherwise.

PROCESS FOR MANUFACTURING SUPPORTED IRIDIUM OXYGEN EVOLUTION REACTION CATALYST, A PRODUCT THEREOF AND ITS USE

Resumen de: WO2025114700A1

A process for preparing an oxygen evolution reaction (OER) catalyst comprises an oxygenated iridium component supported on a particulate solid support, which process comprising the steps of: (i) forming an aqueous mixture comprising a particulate solid support and a solution of a halide-free metal iridate; (ii) reducing the pH of the aqueous mixture to ≤ 5.0 to precipitate an oxygenated iridium component onto the particulate solid support; and (iii) isolating the product of step (ii).

A PROCESS OF NOX-FREE COMBUSTION OF NH3 FOR POWER PRODUCTION

Resumen de: WO2025114049A1

The present invention relates to a gaseous fuel composition comprising O2, N2, H2O, NH3, H2 and optionally further atmospheric components the molar content of H2 is denoted a, the molar content of NH3 is denoted b, the molar content of O2 is denoted c, the molar content of N2 is denoted d, and the molar content of H2O is denoted e, and (a + 1.5b – 2c) / (a + 2b + c + d + e) is in the range of 0 to 0.01, and a constitutes at least 3 mol% of the gaseous fuel composition. The gaseous fuel composition can be produced in a process of the invention and combusted in another process of the invention. The invention further includes a process set-up and a process of combustion of NH3. In the invention, NH3 is 15 combusted to form a flue gas stream virtually free of NOx.

低水素透過性プロトン交換膜及びその製造方法と使用

Resumen de: US20260196544A1

0000 The present disclosure relates to the technical field of water electrolysis, in particular to a low-hydrogen-permeability proton exchange membrane as well as a preparation method and use thereof. The proton exchange membrane comprises a Pt-based additive layer and a substrate membrane, wherein the Pt-based additive layer consists of a Pt-based additive and a fluorinated proton exchange resin and comprises an array layer and a flat layer, with the thickness ratio and active components ratios of the array layer to the flat layer ranging from 1:(0.5-30) to 1:(1-50), and the array layer is composed of an orderly arranged arrays and an array layer resin wrapping the arrays. The low-hydrogen-permeability proton exchange membrane provided by the present disclosure has the Pt-based additive layer composed of the array layer and the flat layer.

水素製造システムに用いられる絶縁回路、及びそれを含む再生可能エネルギーによる水素製造システム

Resumen de: CN119727395A

The invention provides an isolation circuit for a hydrogen production system and a renewable energy hydrogen production system comprising the same, the isolation circuit comprises at least one DC conversion module and at least one DC-AC converter, and the DC conversion module comprises a single output port and a multi-output port; a single output port of the DC conversion module is coupled with the DC side of the DC-AC converter; a plurality of output ports of the DC conversion module are coupled with a plurality of external unidirectional power flow units and/or bidirectional power flow units, and the unidirectional power flow units at least comprise hydrogen production units; and the AC end of the DC-AC converter is coupled and connected with an external AC power grid or a DC power grid in series. According to the scheme, the application requirements of two coupling situations are met at the same time, various types of external units are effectively fused, all parts in the system are fused into a whole, the cost is reduced, and meanwhile positioning and maintenance of faults are facilitated.

WATER ELECTROLYSIS SYSTEM

Resumen de: WO2026203789A1

This water electrolysis system (11) comprises: a water electrolysis device (15) provided with a plurality of electrolysis tanks (13) which are connected at least in series to a power converter (21) and in which water electrolysis is performed; and a conductive shielding body (17) which accommodates the water electrolysis device (15) in an internal space so as to surround the water electrolysis device (15). A shield body potential (Vsh), which is a potential pertaining to the shield body (17), is set to converge, in a state of being insulated from a ground potential, to a prescribed allowable potential difference (Vpd) with respect to a water electrolysis device potential (Vwe) that is a potential pertaining to the water electrolysis device (15). The present invention secures a reduction effect of an explosion event caused by leaked hydrogen regardless of a leakage place of hydrogen.

SEPARATOR FOR WATER ELECTROLYSIS, MATERIAL FOR SEPARATOR FOR WATER ELECTROLYSIS, AND POLYMER

Resumen de: WO2026204899A1

Provided are: a separator for water electrolysis, the separator being composed of a film that contains a polymer having at least one constitutional unit selected from a constitutional unit represented by general formula (A) and a constitutional unit represented by general formula (B); and a material and a polymer for a separator for water electrolysis, which are suitable for the formation of the separator for water electrolysis. In the formulae, L groups each independently represent a C1-20 alkylene group, X groups each independently represent a hydrogen atom, Li, Na, K, or Cs.

PROCESS, METHOD, CATALYST, AND USE

Resumen de: WO2026202480A1

The present invention relates to a process for producing hydrogen from the catalytic cracking of ammonia using a catalyst. The catalyst comprises nickel supported on a metal element modified alumina support, the nickel having a particle size of from 0.5 nm to 10 nm, the metal element of the metal element modified alumina support being selected from the group comprising the rare-earth metals, titanium (Ti), zirconium (Zr), molybdenum (Mo), and zinc (Zn).

Verfahren zur Herstellung einer elektrochemischen Zelle, elektrochemische Zelle, Elektrolysezellenvorrichtung und Brennstoffzellenvorrichtung

Nº publicación: DE102025111619A1 01/10/2026

Solicitante:

BOSCH GMBH ROBERT [DE]
Robert Bosch Gesellschaft mit beschr\u00E4nkter Haftung

Resumen de: DE102025111619A1

Die Erfindung betrifft ein Verfahren (10) zur Herstellung einer elektrochemische Zelle (12), insbesondere Elektrolysezelle (14), aufweisend ein Zellsubstrat (16), eine erste Elektrodenschicht (26), eine zweite Elektrodenschicht (32), eine zwischen der ersten Elektrodenschicht (26) und zweiten Elektrodenschicht (32) angeordnete Elektrolytschicht (28), wobei die Elektrolytschicht (28) mittels eines physical vapour deposition (PVD) Verfahrens abgeschieden wird. Es wird vorgeschlagen, dass auf die Elektrolytschicht (28) eine Versiegelungsschicht (30) mittels atomic layer deposition (ALD) abgeschieden wird.