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ELECTROCHEMICAL SYNTHESIS OF HYDROGEN PEROXIDE USING POROUS CARBON MATERIALS CONTAINING BORON FROM CARBON OXIDE-CONTAINING GAS

Absstract of: US20260327814A1

Disclosed is a method wherein a boron-doped hierarchical porous carbon material is produced by allowing carbon dioxide-containing flue gas or production process waste gas to react with a reducing agent or a mixture of a reducing agent and nanotemplates at high temperature and is used as a catalyst for electrochemical production of hydrogen peroxide. The boron-containing hierarchical porous carbon material produced herein is environmentally friendly because it is synthesized from carbon dioxide under relatively mild conditions (normal pressure), and may be used as a catalyst for two-electron oxygen reduction reaction for the electrochemical production of hydrogen peroxide due to the hierarchical presence of micropores and mesopores and the doped heteroatom boron.

CATALYTIC DECOMPOSITION OF AMMONIA WITH WATER VAPOUR AS HEAT TRANSFER MEDIUM

Absstract of: US20260327070A1

In a plant and a method for producing H2 by catalytic decomposition of NH3, water serves as heat transfer medium for recovering process heat. The process heat is absorbed by water or steam and then released to NH3, resulting in heating and evaporation of NH3. The use of water or steam as heat transfer medium has benefits, including in terms of economic viability and safety.

ON-SITE ELECTRICITY GENERATION WHICH IS NOT CONNECTED TO AN ELECTRICAL GRID FROM METHANE OR METHANOL AND HAS CARBON DIOXIDE CIRCULARITY

Absstract of: US20260331540A1

0000 An electricity generation plant, comprising two units and, a first unit and a second unit, which are located on two separate industrial sites having a first unit comprising a synthesis device which is capable of producing methane or methanol from hydrogen and carbon dioxide originating from a second unit, and the second unit comprising a fuel cell device which is capable of supplying an electric current from methane or methanol originating from the first unit and an anode gas stream comprising carbon dioxide, the fuel cell device being combined with a collecting device for collecting the carbon dioxide in the anode stream that is intended for the first unit.

CONDUCTING ELECTROLYSIS IN MULTIPLE PARALLEL ELECTROLYSIS CELLS AND SYSTEM FOR SUCH

Absstract of: EP4826125A1

0001 A system for conducting electrolysis for producing hydrogen from an electrolyte by conducting such in multiple parallel electrolysis cells, as well as a process for electrolysis using such system. More in particular, the system supplies multiple cells from a shared electrolyte source.

ELECTROLYSIS CELL AND ELECTROLYSIS DEVICE

Absstract of: EP4826134A1

0001 An electrolysis cell includes: an ion exchange membrane; a current collector provided on a surface of the ion exchange membrane and made of a plurality of fiber formed into a sheet; a binder layer covering a surface of each of the plurality of fibers; and an electrode catalyst layer containing catalyst particles at least partially protruding from a surface of the binder layer. At least a part of the catalyst particles protrudes from the surface of the binder layer. For this reason, a surface area of exposed portions of the catalyst particles increases, so that a contact area with an electrolyte can be increased.

BIPOLAR PLATE, ELECTROCHEMICAL REACTION DEVICE AND PREPARATION METHOD

Absstract of: EP4826135A1

0001 The present disclosure provides a bipolar plate, an electrochemical reaction device and a preparation method, wherein the preparation method of the bipolar plate comprises: providing a cathode plate and an anode plate, aligning the cathode plate and the anode plate and applying pressure to keep the cathode plate and the anode plate in contact, and laser welding and laser nitriding the aligned plates under a nitrogen atmosphere.

H2 RELEASE

Absstract of: EP4825794A1

The present invention relates to a catalyst-free hydrogen releasing method comprising: providing (100) a polysiloxane hydrogen carrier; contacting (200) a proton source with the polysiloxane hydrogen carrier thereby obtaining a polysiloxane mixture; pressurizing (300) the polysiloxane mixture at a pressure of higher than 1 bar; and heating (400) the polysiloxane mixture at a temperature of at least 100°C; thereby obtaining a gaseous

PROCESS FOR PRODUCING A HYDROGEN PRODUCT

Absstract of: EP4825793A1

Process for producing a hydrogen product from an ammonia feed stream (2), the process comprising the following steps:- introducing the ammonia feed stream (2), or a gas derived therefrom, into a cracker unit (3) for performing a cracking reaction of said stream into a cracked gas (4) comprising hydrogen and nitrogen,- cooling at least a portion of the cracked gas (4) in a cracked gas cooler (6) by heat exchange with a at least a portion of the ammonia feed stream (2),- directing a controllable portion (7) of the cracked gas (4) through a cracked gas cooler bypass (15), thus diverting said controllable portion (7) from the cracked gas cooler (6).

CONTROLLING OF AN ELECTROLYZING PLANT

Absstract of: EP4826940A1

0001 The invention relates to a method of controlling an electrolyzing plant (10) having plural electrolyzing cells (14) providing an electrolyzing process in response to being subjected to a DC electrolyzing power, wherein the electrolyzing plant is supplied with electric power from an electric power network (12) deploying an alternating voltage, wherein a transformer (32) has a primary winding (38) connected with the electric power network, wherein the primary winding (38) has several taps (30), and a secondary winding (40) connected with an AC side (22) of an electric converter (20), and a DC side (24) of the electric converter (20) provides the DC electrolyzing power, wherein an on-Ioad-tap-changer (28) is connected with the taps, wherein a control apparatus (36) controls the on-Ioad-tap-changer. The on-Ioad-tap-changer (28) has switching apparatuses (S1, S2, S3, S4, S5, S6) for the taps, wherein each of the switching apparatuses comprise at least one solid-state switching element.

水素生成装置

Absstract of: JP2026169862A

【課題】エネルギー効率を向上させる。【解決手段】水素生成装置１００は、固体炭素が収容される第１空間１２０、および、液体の水Ｗが収容される第２空間１３０が形成されている容器１１０と、容器１１０内にマイクロ波を照射する照射装置１５０と、を備え、第１空間１２０は、第１空間１２０および第２空間１３０に固体炭素および水Ｗがそれぞれ収容された収容状態で、マイクロ波が照射される位置に設けられ、第２空間１３０は、収容状態で、マイクロ波が照射されない位置に設けられる。【選択図】図１

金属酸化物、水の分解方法及び水素の製造方法

Absstract of: JP2026170117A

【課題】新規な金属酸化物を提供する。【解決手段】Ａｌ３＋イオンと、最外殻のｄ軌道の電子配置がｄ１０である少なくとも２種の金属イオンＭｄ１０と、を含み、ＣｕＫα線を用いたＸ線回折装置により測定されるＸ線回折パターンにおいて、２θ＝３０．４０°～３１．６０°に最も高い強度を有する回折ピークが観測され、前記回折ピークの半値幅が０．１６°以上である、金属酸化物。【選択図】なし

HYDROGEN PRODUCTION SYSTEM AND HYDROGEN PRODUCTION METHOD

Absstract of: EP4826130A1

According to exemplary embodiments of the present invention, a hydrogen production system is provided. The hydrogen production system comprises: a dry quenching facility configured to cool coke using a cooling gas; a boiler configured to receive the cooling gas from the dry quenching facility and recover heat energy of the cooling gas to produce first steam and electric power; and a water electrolysis facility configured to receive the electric power from the boiler and electrolyze second steam to produce hydrogen. According to other exemplary embodiments of the present invention, a method for producing hydrogen is provided.

SYSTEMS AND METHODS FOR REDUCING FUEL CONSUMED IN COMBUSTION FACILITIES AND RECOVERING GENERATED CO2

Absstract of: EP4826295A1

0001 The present invention relates to a system for reducing fuel consumption and recovering CO<2>, comprising: a water electrolysis facility system for producing hydrogen and oxygen from water or steam; a combustion facility for combusting fuel by using the produced oxygen; and a CO<2> recovery facility for recovering CO<2> from an exhaust gas discharged from the combustion facility.

GREEN HYDROGEN, SYNTHESIS GAS WITH A REDUCED NITROGEN CONTENT, AND FLUE GAS FOR THE SYNTHESIS OF AMMONIA AND UREA

Absstract of: AU2024399298A1

The invention relates to the synthesis of urea from ammonia and carbon dioxide, wherein the hydrogen required for ammonia synthesis is obtained both by steam reforming of feed natural gas (grey hydrogen) and by electrolysis of water using electricity from renewable energy sources (green hydrogen). As the proportion of green hydrogen increases, the amount of carbon dioxide formed in the synthesis gas during steam reforming is no longer sufficient for the synthesis of urea. Therefore, flue gas, which is formed during the combustion of a fuel gas composed of fuel natural gas and combustion air and which also contains carbon dioxide, is additionally used. The oxygen formed during the electrolysis of water is introduced into the flue gas, and the modified flue gas is fed to a secondary reformer; and/or the fuel natural gas is combusted together with combustion air and the oxygen formed during electrolysis. Excess nitrogen is preferably separated from the synthesis gas before it is used for the synthesis of ammonia.

METHOD FOR OPERATING AN ELECTROLYZER, AND ELECTROLYZER

Absstract of: WO2025172046A1

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.

GREEN HYDROGEN, SYNTHESIS GAS, AND FLUE GAS WITH A REDUCED NITROGEN CONTENT FOR THE SYNTHESIS OF AMMONIA AND UREA

Absstract of: WO2025125180A1

The invention relates to the synthesis of urea from ammonia and carbon dioxide, wherein the hydrogen required for ammonia synthesis is obtained both by steam reforming of feed natural gas (grey hydrogen) and by electrolysis of water using electricity from renewable energy sources (green hydrogen). As the proportion of green hydrogen increases, the amount of carbon dioxide formed in the synthesis gas during steam reforming is no longer sufficient for the synthesis of urea. Therefore, flue gas, which is formed during the firing of the steam reformer and also contains carbon dioxide, is additionally used. After reducing the nitrogen content, the flue gas is fed into the reforming process. The carbon dioxide from the synthesis gas and the flue gas is combined, separated using conventional carbon dioxide scrubbing, and used for the synthesis of urea.

ALKALINE ELECTROLYSER AND A METHOD FOR ITS OPERATION INCLUDING GAS PURGING

Absstract of: WO2025124674A1

Alkaline electrolyser and a method for its operation including gas purging An alkaline electrolyser comprising a stack (17) of electrolytic cells (1) is used for producing hydrogen gas (8). Purified hydrogen gas and purified oxygen gas is used for purging the corresponding cathode and anode compartments (5, 6) for preventing buildup of dangerous gas mixtures by gas crossover during stop, before starting, or when running production low.

SUPPORT, METHOD FOR MANUFACTURING SUPPORT, AND CATALYST FOR AMMONIA DECOMPOSITION CONTAINING SUPPORT

Absstract of: EP4825487A1

According to exemplary embodiments of the present invention, a support is provided. The support is a support of a catalyst for ammonia decomposition, and the amount of acid sites of the support, as measured by NH3-temperature programmed desorption (NH3-TPD), is 0.006-0.010 mmol/g. Also, according to other exemplary embodiments of the present invention, provided are a method for manufacturing the support, and a catalyst for ammonia decomposition, comprising the support.

IRIDIUM-CONTAINING MANGANESE OXIDE, CATALYST, ELECTRODE, AND WATER ELECTROLYSIS METHOD

Absstract of: EP4825809A1

0001 The present disclosure provides at least one of an iridium-containing manganese oxide that exhibits high oxygen evolution electrode catalytic activity in water electrolysis, a catalyst comprising the same, an electrode comprising the catalyst or a water electrolysis method in which the electrode is used. The iridium-containing manganese oxide according to the present invention is an iridium-containing manganese oxide having a molar ratio of iridium to manganese of 0.001 or more and 0.250 or less. In one aspect, the manganese oxide is manganese dioxide having a β-type crystal structure. In one aspect, furthermore, the ratio of the lattice constant in the a-axis direction to the lattice constant in the c-axis direction is 1.420 or more and less than 1.521.

HYDROGEN PRODUCTION APPARATUS FOR PRODUCING HYDROGEN FROM AMMONIA

Absstract of: EP4825792A1

0001 A hydrogen production apparatus of the present invention comprises: an ammonia decomposition reactor for decomposing ammonia to discharge a mixed gas including hydrogen, nitrogen, and unreacted ammonia; an ammonia remover for receiving the mixed gas, adsorbing and removing the unreacted ammonia included in the mixed gas, and discharging a first product gas including hydrogen and nitrogen and a first tail gas; and a nitrogen remover for receiving the first product gas, removing nitrogen included in the first product gas, and discharging a second product gas including hydrogen and a second tail gas, wherein the second product gas discharged from the nitrogen remover is resupplied to the nitrogen remover as a purge gas and a pressurizing gas. According to the hydrogen production apparatus of the present invention, high-purity hydrogen can be continuously produced in large quantities.

HYDROGEN PRODUCTION SYSTEM

Absstract of: EP4825791A1

0001 According to exemplary embodiments of the present invention, a hydrogen production system is provided. The present invention comprises: a hydrogen generation unit configured to receive reduced iron from a reduced iron generation unit configured to generate reduced iron by reducing powdered iron ore in a reducing gas atmosphere, and to generate hydrogen from ammonia by bringing the reduced iron into contact with the ammonia; and a regeneration unit configured to receive the reduced iron from the hydrogen generation unit and to regenerate the reduced iron by reducing the reduced iron in a hydrogen gas atmosphere. According to other exemplary embodiments of the present invention, a method for producing hydrogen is provided.

AMMONIA DECOMPOSITION SYSTEM

Absstract of: EP4825790A1

Provided according to exemplary embodiments of the present invention is an ammonia decomposition system capable of minimizing the generation of iron nitride, which is a byproduct.

SYSTEMS AND METHODS FOR PRODUCING HYDROGEN GAS USING FLUIDIZED-BED REACTOR

Absstract of: US20250197211A1

Chemical looping systems and methods for producing hydrogen gas are described herein that use a fluidized-bed reactor to reduce carrier particles; and a moving-bed hydrogen reactor to oxidize the reduced carrier particles and form hydrogen gas. Also possibly included as a cooler for cooling the oxidized carrier particles; and a silo for storing the oxidized carrier particles and feeding them to the fluidized-bed reactor and other components. Various configurations of these components are disclosed herein.

METHOD FOR AMMONIA RECOVERY VIA PARTIAL LIQUEFACTION FROM AN AMMONIA CRACKER USING CRYOGENIC SEPARATION

Absstract of: EP4570744A1

0001 A method for producing hydrogen using a feed stream comprising ammonia is provided. The method can include the steps of: cracking a gaseous ammonia feed in an ammonia cracker to produce a cracked gas stream comprising hydrogen, nitrogen, and unreacted ammonia; cooling the cracked gas stream to a first temperature that is sufficient for condensing at least a portion of the unreacted ammonia to form a dual phase fluid; separating the dual phase fluid in an ammonia separator to produce a liquid ammonia stream and a top gas stream comprised predominately of hydrogen and nitrogen; removing additional ammonia from the top gas stream using a front-end purification system to form a purified top gas stream; further cooling the purified top gas stream to a second temperature that is sufficient for condensing at least a portion of the nitrogen within the top gas stream to form a dual-phase stream, wherein the second temperature is colder than the first temperature; introducing the dual-phase stream to a cryogenic hydrogen separator under conditions effective for separating hydrogen and nitrogen, thereby creating a liquid nitrogen stream and a hydrogen top gas; warming and vaporizing the liquid nitrogen stream to produce a gaseous nitrogen stream; warming the hydrogen top gas to produce a gaseous hydrogen product stream; and recycling the liquid ammonia stream produced by the ammonia separator to a point upstream the ammonia cracker.

AN ELECTROLYZER WITH A MULTI-PARAMETER MEASUREMENT SYSTEM

Nº publicación: EP4824323A1 21/10/2026

Applicant:

TNO [NL]
Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO

Absstract of: EP4570950A1

The present invention relates to an electrolyzer designed for the generation of hydrogen and oxygen through water electrolysis. The electrolyzer comprises a housing structure accommodating at least one electrolytic cell, which includes an anode, a cathode, and an ion-conducting membrane. A water inlet is provided to introduce water into the electrolytic cell, and an electrical power source is operatively connected to the anode and cathode to facilitate the electrolysis process. The electrolyzer also includes separate outlets for the efficient extraction of hydrogen and oxygen generated during electrolysis. A multi-parameter optical measurement system is integrated within the electrolyzer. This system features at least one optical fiber with multiple sensing points distributed along its length, each capable of detecting various operational parameters within the electrolyzer.