Alerta

CONTROLLING AN ELECTROLYZING PLANT FOR PRODUCING HYDROGEN AND OXYGEN

Resumen de: AU2025229653A1

The invention relates to a method for controlling an electrolyzing plant (10), comprising: providing electric energy from an electric power network (32) with a network AC voltage; rectifying the network AC voltage by a rectifying device (50, 52, 54, 56, 58, 60, 62, 64); supplying water to the electrolyzing device (34, 36); providing an AC filter current flow by an active filter device (100), wherein the AC filter current flow is controlled such that it conforms to network regulations of the electric power network; measuring the network AC voltage by using a voltage sensor (128) which provides a respective voltage sensor signal; comparing the voltage sensor signal with a first reference voltage value providing a comparing result; depending on the comparing result, causing the active filter device (100) to emit electric energy to or to receive electric energy from the electric power network.

ELECTROCATALYSTS FOR THE HYDROGEN EVOLUTION REACTION

Resumen de: WO2026171464A1

The invention relates to an electrocatalyst for the hydrogen evolution reaction (HER), comprising a conductive carbon carrier, and a catalytic material arranged on the conductive carbon carrier, wherein the catalytic material comprises a nickel(II) complex corresponding to general formula 4, in which R1 and R2 each independently represent a phenyl group optionally having one or more identical or different R3 substituents, and R3 is selected from a halogen, a hydroxy group, a C1-C4 alkyl group, a C1-C4 alkoxy group, a C1-C4 thioalkyl group, a C1-C4 dialkylamino group, a cyano group, a CF3 group, and an O-CF3 group.

METHOD FOR OPERATING AN ELECTROLYZER, AND ELECTROLYZER

Resumen de: AU2025221792A1

The invention relates to a method for operating an electrolyzer (1) comprising an anode chamber (3) and a cathode chamber (5), in which water (H2O) is supplied as a reactant and hydrogen (H2) and oxygen (O2) are generated as product gases. On the anode side, the oxygen product gas, which also contains hydrogen as a foreign gas, is generated in a product flow out of the anode chamber (3) and is introduced into a horizontal anode-side collecting line (7) having a surrounding wall (11) and is removed via the collecting line (7), wherein water (H2O) is sprayed onto an inner surface of the surrounding wall (11) of the collecting line (7) so that the surrounding wall (11) is wetted with water and the inner surface is inerted. The invention additionally relates to an electrolyzer (1), in particular for carrying out the method.

A GEOTHERMAL HYDROGEN PRODUCTION AND COMPRESSION SYSTEM

Resumen de: US20260242246A1

The present disclosure is directed to a geothermal hydrogen production and compression system, wherein the system comprises an impure water intake to receive water from a impure water source, at least one geothermal well having a well inlet to receive the impure water from the impure water intake in to the geothermal well and one or more well outlets adapted to return heated impure water from the geothermal well, one or more well outlets being adapted to direct the heated impure water from the geothermal well through a steam engine providing a mechanical output, a purification plant comprising one or more purification chambers for separating impurities from the heated impure water expelled from the steam engine to produce at least some fresh water, one or more discharge outlets to discharge one or more products of the purification plant wherein the fresh water is directed to an electrolyser for electrolysis to produce hydrogen gas, where the hydrogen gas is passed through a hydrogen compressor coupled to the mechanical output and pressurised in a storage apparatus.

CERAMIC REVERSIBLE CELL, AND STEAM ELECTROLYSIS CELL, FUEL CELL AND AMMONIA-PRODUCING CO-ELECTROLYSIS CELL EACH INCLUDING THE SAME

Resumen de: US20260242958A1

0000 A ceramic reversible cell including any one or more selected from the group consisting of a perovskite-type metal oxide, a hydrate of the perovskite-type metal oxide and a hydride of the perovskite-type metal oxide, in which the any one or more selected from the group consisting of the perovskite-type metal oxide, the hydrate of the perovskite-type metal oxide, and the hydride of the perovskite-type metal oxide include A (A being any one or more selected from the group consisting of Ba, Sr and Ca), B (B being any one or more selected from the group consisting of Zr, Sn, Ce, Ti and Hf), and M (M being any one or more selected from the group consisting of In, Fe, Cr and Mn) as main metal atoms, and satisfy the predetermined formula and include hydride ions when brought into an equilibrium state by contact with dry hydrogen having a water content of 20 ppm or less in a volume ratio at 500° C. to 900° C.

ELECTROCHEMICAL PRODUCER FOR HYDROGEN OR CARBON MONOXIDE

Resumen de: US20260242957A1

0000 Herein discussed is an electrochemical reactor comprising a first electrode, wherein the first electrode is liquid when the reactor is in operation; a second electrode having a metallic phase and a ceramic phase, wherein the metallic phase is electronically conductive and wherein the ceramic phase is ionically conductive; and a membrane, wherein the membrane is positioned between the first and second electrodes and is in contact with the first and second electrodes, wherein the membrane is mixed conducting. Also discussed herein is a method of producing hydrogen or carbon monoxide comprising: (a) providing an electrochemical reactor having an anode, a cathode, and a membrane between the anode and the cathode, wherein the anode is liquid when the reactor is in operation and wherein the membrane is mixed conducting; (b) introducing a feedstock to the anode; (c) introducing a stream to the cathode, wherein the stream comprises water or carbon dioxide.

Hydrogen Supply System, Hydrogen Station, And Hydrogen Supply/Demand Management Method

Resumen de: AU2026210694A1

A hydrogen station 10 includes a water electrolysis device 12 that produces hydrogen gas by an electrolytic reaction consuming power supplied from a commercial power network 90, a compressor 14 that compresses the hydrogen gas produced by the water electrolysis device 12, an accumulator 16 that accumulates the hydrogen gas compressed by the compressor 14, a dispenser 18 that fills a fuel cell vehicle 92 with the hydrogen gas accumulated in the accumulator 16, and a control device 20 that controls a power consumption amount of the water electrolysis device 12 on the basis of a command for adjusting supply and demand of power of the commercial power network 90. ul u l

ELECTROCHEMICAL CELL STACK

Resumen de: US20260242965A1

An electrochemical cell stack includes a plurality of cells separated from one another by bipolar plates. Each cell is formed from two half-cells between which a membrane is arranged. The support frame describes a stepped shape with two adjacent cross-section regions. An edge of the membrane lies in a step formed by the cross-section regions and the porous transport layer of a half-cell extends into the step. The support frame includes at least one sealing arrangement and an electrically insulating sealing material. The sealing arrangement includes three sealing regions each having at least one sealing lip. A first sealing region and a second sealing region are assigned to the narrower of the two cross-section regions facing the membrane. A third sealing region on a side of the support frame facing away from the step and borders an opening of the support frame.

ELECTROLYTIC HYDROGEN PRODUCTION SYSTEM COUPLED WITH CAPTURING CARBON DIOXIDE FROM FLUE GAS

Resumen de: AU2025345105A1

An electrolytic hydrogen production system coupled with capturing carbon dioxide from flue gas. The system comprises an absorption device (1), an electrolytic hydrogen production device (2), a first gas-liquid separation device (3) and a second gas-liquid separation device (4). The electrolytic hydrogen production device (2) comprises an anode chamber (21), an intermediate chamber (22) and a cathode chamber (23), which are separated by anion exchange membranes (24). In addition, the present invention further relates to a method for using the electrolytic hydrogen production system coupled with capturing carbon dioxide from flue gas. The method comprises: absorbing carbon dioxide from flue gas by using the absorption device (1); allowing the obtained absorption liquid to enter the anode chamber (21), so as to obtain a carbon-dioxide-containing gas-liquid mixture; allowing the gas-liquid mixture to enter the first gas-liquid separation device (3) to undergo separation, so as to obtain carbon dioxide and a first separation liquid; allowing the first separation liquid to enter the intermediate chamber (22), so as to realize the regeneration of the absorbent under the action of ion exchange; and returning the regenerated absorbent to the absorption device (1) again to continue the absorption of carbon dioxide.

METHODS AND SYSTEMS FOR SYNGAS PRODUCTION

Resumen de: WO2026173620A2

The reverse water-gas shift (RWGS) reaction, which is used to convert H2 and CO2 into syngas (H2+CO) is performed using nonstoichiometric metal oxides. The RWGS reaction is performed in two separate steps, achieving both high conversion and high energy efficiency. The reaction may be performed in a single reactor or in multiple reactors arranged in series or parallel. This could be powered either by heat generated by distributed energy sources, concentrated solar thermal (CST) heat, heat from traditional energy generation sources, and/or waste electrical power.

PROCESS FOR THE PREPARATION OF METHANOL

Resumen de: US20260242314A1

0000 Process for the preparation of methanol comprising the steps of (a) preparing a hydrogen feedstock by electrolysis (b) providing a carbon oxide feedstock in periods of operating the electrolysis in step (a) (c) mixing at least part of the hydrogen feed and carbon oxide source consisting of carbon monoxide and/or carbon dioxide feed to obtain a methanol synthesis gas; (d) adjusting the molar content of hydrogen, carbon monoxide and/or carbon dioxide from step (c) to a module M of (H2−CO2)/(CO2+CO) to between 1.9 and 2.2 (e) converting the methanol synthesis gas in one or more boiling water reactors to methanol; in periods without operating the electrolysis in step (a) (f) interrupting the converting of the methanol synthesis gas in the one or more boiling water reactors by heat exchange with boiling water, wherein in step (f) the one or more boiling water reactors are heated by one or more auxiliary heaters to maintain boiling of the water in the one or more boiling water reactors.

AN AMMONIA PRODUCTION PLANT WITH HYDROGEN COMPRESSION

Resumen de: WO2026171584A1

A modular ammonia production plant with separate hydrogen compression is disclosed. The ammonia production plant comprises at least - a hydrogen production module comprising a hydrogen-containing substance inlet and a hydrogen outlet, - a nitrogen production module comprising an air inlet and a nitrogen outlet, - a hydrogen compression module comprising a primary hydrogen compressor and a nitrogen compression module comprising a nitrogen compressor or a joint compression module comprising a primary hydrogen compressor and a nitrogen compressor, the primary hydrogen compressor comprising a hydrogen inlet configured to be fluidly coupled to the hydrogen outlet of the hydrogen production module and a pressurized hydrogen outlet and the nitrogen compressor comprising a nitrogen inlet fluidly coupled to the nitrogen outlet of the nitrogen production module and a pressurized nitrogen outlet, - a merging station comprising a hydrogen inlet configured to be fluidly coupled to the pressurized hydrogen outlet of the primary hydrogen compressor, a nitrogen inlet configured to be fluidly coupled to the pressurized nitrogen outlet of the nitrogen compressor and a syngas outlet, the syngas containing hydrogen and nitrogen in a molar ratio 3:1, and - an ammonia synthesis module comprising: - an ammonia synthesis reactor comprising an inlet configured to be fluidly coupled to the syngas outlet of the merging station, and an ammonia-rich gas outlet; wherein the primary hydrogen compressor is

ELECTROLYSIS CELL AND HYDROGEN PRODUCTION DEVICE

Resumen de: WO2026172575A1

This electrolysis cell is used in a hydrogen production device for producing hydrogen from a conductive fluid containing water. The electrolysis cell comprises: an ion exchange membrane; an anode unit to which a conductive fluid is supplied; and a cathode unit that produces hydrogen from water contained in the conductive fluid. The anode unit includes: a separator including a conductive central section and an outer peripheral section; and an electrode disposed between the central section and the ion exchange membrane so as to face the central section. The outer peripheral section has formed therein: a first opening; and a plurality of supply flow paths which connect the first opening and the central section and through which the conductive fluid that was discharged from the first opening flows. The plurality of supply flow paths include: a first flow path having the shortest distance from the first opening to the point of connection with the central section; and a second flow path having the longest distance from the first opening to the point of connection with the central section. A first flow path length difference, which is the difference between the flow path length of the first flow path and the flow path length of the second flow path, is smaller than a first distance difference, which is the difference between the distance from the first opening to the point of connection of the first flow path with the central section and the distance from the first opening to the po

ELECTROLYTIC CELL, SEPARATOR, AND HYDROGEN PRODUCTION DEVICE

Resumen de: WO2026172460A1

Provided is an electrolytic cell that is used in a hydrogen production device for producing hydrogen from a conductive fluid which contains water, said electrolytic cell comprising: an ion exchange membrane which has a first main surface and a second main surface that is positioned oppositely from the first main surface in the thickness direction; an anode section which is disposed in contact with the first main surface and to which the conductive fluid is supplied; and a cathode section which is disposed in contact with the second main surface and which produces hydrogen from the water contained in the conductive fluid. The anode section and the cathode section each include: a separator which has a plate-shaped central section that is conductive and a plate-shaped outer peripheral section which surrounds the central section; and an electrode which is disposed between the central section and the ion exchange membrane so as to face the central section. Formed in the outer peripheral section of at least one of the anode section and the cathode section are: an opening through which the conductive fluid is supplied or which discharges the hydrogen; and a flow path which connects the opening and the central section. In the central section, a plurality of grooves connected to the flow path are formed with spacing therebetween in width direction. At least one recess is formed in an electrode facing surface, which is a surface of the central section that is positioned between the plu

ELECTROLYTIC CELL AND HYDROGEN PRODUCTION DEVICE

Resumen de: WO2026172458A1

This electrolytic cell is used in a hydrogen production device for producing hydrogen from a conductive fluid containing water. The electrolytic cell comprises an ion exchange membrane, a cathode, and an anode. Each of the cathode and the anode includes: a separator unit that includes a separator part including a central section and an outer peripheral section surrounding the outer periphery of the central section, and a spacer part sandwiched between the ion exchange membrane and the outer peripheral section; and an electrode that has an outer periphery surrounded by the spacer part. An exhaust opening is formed in the outer peripheral section included in the cathode. A supply opening and a discharge opening are formed in the outer peripheral section included in the anode. A first gap is formed between the outer peripheral surface of the electrode included in the cathode and the inner peripheral surface of the spacer part included in the cathode, or a second gap is formed between the outer peripheral surface of the electrode included in the anode and the inner peripheral surface of the spacer part included in the anode.

ELECTROLYSIS CELL AND HYDROGEN PRODUCTION DEVICE

Resumen de: WO2026172459A1

This electrolysis cell is used in a hydrogen production device for producing hydrogen from a conductive fluid containing water. This electrolysis cell comprises an ion exchange membrane, a cathode part, and an anode part. Each of the cathode part and the anode part includes: a separator unit that includes a separator part including a central part and an outer peripheral part surrounding the outer periphery of the central part, and a spacer part sandwiched between the ion exchange membrane and the outer peripheral part; and an electrode having an outer periphery surrounded by the spacer part. An exhaust port is formed in the outer peripheral part included in the cathode part. A supply port and a discharge port are formed in the outer peripheral part included in the anode part. A first gap is formed between an outer peripheral surface of the electrode included in the cathode part and an inner peripheral surface of the spacer part included in the cathode part. A second gap is formed between an outer peripheral surface of the electrode included in the anode part and an inner peripheral surface of the spacer part included in the anode part. The sum of the widths of the first gaps is greater than the sum of the widths of the second gaps.

METHOD FOR REGENERATING AN ELECTROLYSIS SYSTEM, AND ELECTROLYSIS SYSTEM

Resumen de: WO2026171830A1

The present invention relates to a method (100) for regenerating an electrolysis system (200). The method (100) comprises: - introducing (101) a hydrogen-containing regeneration fluid into a cathode chamber (203) of the electrolysis system (200), - reversing (103) an electrical polarity of a cathode (205) and anode (209) of the electrolysis system (200) compared to a normal operation for electrolysis, so that hydrogen present in the cathode chamber (203) is oxidized, and hydrogen is formed in an anode chamber (207) of the electrolysis system (200), and - flushing out (105) the cathode chamber (203).

AN AMMONIA PLANT AND A METHOD FOR CONTROLLING THE SAME

Resumen de: WO2026171654A1

An ammonia plant and a method for controlling the same at partial load, wherein the make-up gas for the synthesis of ammonia is produced from renewable power, wherein the plant includes an electrolysis section for the generation of hydrogen and a hydrogen storage, wherein a standby of the water electrolysis section is controlled by the amount of said renewable power and a standby of the ammonia synthesis loop is controlled by the amount of hydrogen contained in said hydrogen storage, and/or by the amount of renewable power available to the water electrolysis section.

CARBON DIOXIDE CAPTURE USING AN APPARATUS INTEGRATED WITH AN ALKALINE ELECTROLYZER

Resumen de: WO2026172118A1

Over the past decade, the importance of green hydrogen production has grown exponentially as the world increasingly seeks to reduce its dependence on fossil fuels. Green hydrogen is hydrogen produced using renewable energy sources, such as solar and wind power, and thus offers a carbon-free alternative to conventional fossil-fuel-based hydrogen production. Alkaline electrolyzers play a central role in green hydrogen production. This technology is one of the oldest and most mature methods of hydrogen production via electrolysis. Alkaline electrolyzers split water into hydrogen and oxygen in a liquid alkaline medium, typically a solution of potassium hydroxide (KOH) or sodium hydroxide (NaOH). The invention relates to the capture of carbon dioxide using am apparatus integrated with such an alkaline electrolyzer.

A PROCESS AND A PLANT FOR THE PRODUCTION OF METHANOL

Resumen de: WO2026171707A1

A process for the production of e-methanol, including the steps of: producing a stream of hydrogen (311) from water electrolysis (302); converting said stream of hydrogen (311) and a CO2 containing stream (313) in a methanol converter of a methanol synthesis loop (300) producing a stream of crude methanol (314) and optionally a stream of purge gas (50); purifying said stream of crude methanol in a methanol distillation section (301) producing a stream of light ends (33) and a stream of fusel oil (80); the process includes the step of producing a POX effluent (106) by performing a partial oxidation (POX) process to one or more of the following POX feed streams: said stream of light ends (33); said stream of fusel oil (80); said stream of purge gas (50); the invention further discloses a plant for production of e-methanol, a method for controlling a methanol plant and a method for revamping a methanol plant.

WATER DECOMPOSITION USING ELECTRICITY AND HEAT IN COMBINATION

Resumen de: WO2026173104A1

Provided is a method for decomposing water so as to obtain a hydrogen gas and an oxygen gas, the method including: a step (A) for electrolyzing an alkali metal hydroxide aqueous solution containing halide ions so as to generate a hydrogen gas at a cathode and to generate halic acid ions at an anode; and a step (B) for thermally decomposing at least some of a compound selected from the group consisting of the halic acid ions generated in step (A) and halic acid salts generated from at least some of the halic acid ions.

A METHOD FOR PROVIDING THERMAL ENERGY TO A DIRECT AIR CAPTURE SYSTEM AND A CARBON CAPTURE SYSTEM

Resumen de: WO2026170256A1

The present disclosure relates to a method for providing thermal energy to a direct air capture system and a carbon capture system. The method for providing thermal energy to a direct air capture system comprises the steps of electrolysing H2O to split H2O into hydrogen and oxygen to produce a first waste heat; transferring the first waste heat to a first working fluid; passing the first working fluid through the direct air capture system to heat the sorbent; desorbing CO2 from the sorbent during heating; and evacuating the CO2 from the direct air capture system. The carbon capture system comprises a direct air capture system having a sorbent; an electrolyser adapted for electrolysing H2O and producing a first waste heat; a first fluid circuit; and a first fluid circuit pump connected to the first fluid circuit for pumping a first working fluid around the first fluid circuit.

METHOD AND SYSTEM

Resumen de: WO2026173101A1

The present invention relates to a method comprising: a step (A) for electrolyzing an alkali metal hydroxide aqueous solution which contains halide ions and which has a concentration of not less than 1 mol/L to produce hydrogen gas with a cathode and produce halogen acid ions with an anode; a step (B) for pyrolyzing at least some of a compound selected from the group consisting halogen acid ions produced in step (A) and a halogen acid salt produced from at least some of the halogen acid ions; and a step (C) for collecting, as an oxidizing agent, at least some of the halogen acid ions that were not pyrolyzed in the step (B).

Multifunktionselement für eine Elektrolysezelle einer Elektrolysevorrichtung, Verfahren zum Herstellen desselben und Elektrolysezelle

Resumen de: DE102025105819A1

Multifunktionselement (12c) für eine aus mehreren Zellstapelelementen (12) bestehende Elektrolysezelle (13) einer Elektrolysevorrichtung (10), bestehend aus einem Polymerschaum (22) und aus von dem Polymerschaum (22) auf-genommenen Metallpartikeln (24).

METHANOL SYNTHESIS WITH HYDROGEN RECOVERY UNIT

Nº publicación: US20260242313A1 20/08/2026

Solicitante:

TOPSOE AS [DK]
TOPSOE A/S

Resumen de: US20260242313A1

0000 A methanol plant and a process for the production of methanol is provided. A hydrogen recovery section receives off-gas stream from the methanol synthesis section and outputs a hydrogen-rich stream, which is recycled upstream the methanol synthesis section.