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ELECTROCHEMICAL HYDROGEN PRODUCTION UTILIZING AMMONIA WITH OXIDANT INJECTION

Resumen de: US20260055518A1

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 is both electronically conducting and ionically conducting; (b) introducing a first stream to the anode, wherein the first stream comprises ammonia; (c) introducing an oxidant to the anode; and (d) introducing a second stream to the cathode, wherein the second stream comprises water and provides a reducing environment for the cathode; wherein hydrogen is generated from water electrochemically; wherein the first stream and the second stream are separated by the membrane; and wherein the oxidant and the second stream are separated by the membrane.

MICROORGANISMS AND ARTIFICIAL ECOSYSTEMS FOR THE PRODUCTION OF PROTEIN, FOOD, AND USEFUL CO-PRODUCTS FROM C1 SUBSTRATES

Resumen de: US20260055517A1

Microorganisms and bioprocesses are provided that convert gaseous C1 containing substrates, such as syngas, producer gas, and renewable H2 combined with CO2, into nutritional and other useful bioproducts.

ELEKTROLYSEVORRICHTUNGSBETRIEBSSYSTEM

Resumen de: DE102025133002A1

Ein Elektrolysevorrichtungsbetriebssystem beinhaltet eine Elektrolysevorrichtung, eine Steuereinheit, eine Zielgesundheitszustandswerteingabeeinheit und eine Steuerparameterberechnungseinheit. Die Elektrolysevorrichtung weist eine Vielzahl von Elektrolyse-Stacks auf, in denen eine Vielzahl von Elektrolysezellen, die Wasserstoff durch Elektrolyse von Wasser erzeugen, gestapelt sind. Die Steuereinheit steuert ein gesteuertes Objekt basierend auf einem Steuerparameter, der den Gesundheitszustand des gesteuerten Objekts beeinflusst. Die Zielgesundheitszustandswerteingabeeinheit ermöglicht es einem Systembenutzer, einen Zielgesundheitszustandswert einzugeben, der ein Zielwert für den Gesundheitszustand ist. Die Steuerparameterberechnungseinheit berechnet einen Steuerparameter des gesteuerten Objekts basierend auf dem Zielgesundheitszustandswert. Das gesteuerte Objekt ist die Elektrolysevorrichtung.

Process and plant

Resumen de: GB2700593A

A process for controlling an ammonia cracking plant comprising a fired ammonia cracking reactor 1, may comprise the steps of: decreasing a flow of ammonia feedstock 11 to the catalyst containing reaction tube inlets, and decreasing the heat output of a fuel combustion zone of the reactor. The obtained cracked gas from the outlet of the reaction tubes may be cooled 2, increased in pressure 3, and heated 4 before recirculating the cracked gas to the inlet of the reaction tubes and passing it through the reaction tubes. An ammonia plant in a turn down state may have operated said process. The process is intended to place the ammonia cracking plant into a turndown state which enables it to rapidly return to normal operation without wasting ammonia feedstock or hydrogen. A process may return the plant from turndown by increasing ammonia feedstock flow and heat output and obtaining cracked gas. Figure 2

酸化物の製造方法

Resumen de: WO2024165389A1

The present invention relates to a pyrogenic process for manufacturing metal oxides or metalloid oxides wherein a metal precursor and/or a metalloid precursor is introduced into a flame formed by burning a gas mixture comprising oxygen and hydrogen, wherein at least a part of the hydrogen has been obtained from electrolysis of water or an aqueous solution, using electrical energy, at least a part of which has been obtained from a renewable energy source, and wherein at least a part of the thermal energy of the flame is transferred to a first heat transmission medium by means of at least one exchanger, thereby heating the first heat transmission medium to a maximal temperature in the range between 80 and 150 °C.

A METHOD FOR PRODUCING GREEN HYDROGEN BY ELECTROLYSIS IN A HYBRID POWER PLANT

Resumen de: WO2024217840A1

A method for producing green hydrogen by electrolysis in a hybrid power plant (10), which comprises at least: - a wind turbine (11 ) with a rotor (11.1), a drive-train and a generator; multiple photovoltaic modules (12), - an electrolysis unit (15) for producing hydrogen by electrical power generated by the wind turbine (11) and/or the photovoltaic modules (12), an internal electrical power grid interconnecting the generator, the photovoltaic modules (12) and the electrolysis unit (15) within the power plant (10) and - a control unit (16); wherein a) electrical energy is generated by using the photovoltaic modules (12) and/or wind turbines (11 ); b) cloud coverage and/or solar radiation is measured by at least one weather sensor (14) which is located in a windward position remote of the power plant (10) and which is connected to the control unit (16) via a data link; According to a first aspect of the invention the wind turbine (11) is used as kinetic energy storage and according to another aspect of the invention the wind turbine (11) is used as an energy absorber by increasing inertia of the rotor (11.1).

REDUCTION DEVICE, REDUCTION METHOD, AND PRODUCTION METHOD FOR REDUCTION PRODUCT

Resumen de: EP4699691A1

Provided is a reduction device that can be manufactured inexpensively and easily, has a wide reaction field, can achieve a reduction reaction even with low energy light such as visible light, and has a long catalyst life. The reduction device of the present disclosure includes diamond particles. It is preferable to contain the diamond particles as a diamond particle dispersion liquid. The diamond particles preferably contain nanodiamond particles having a particle size of 1 µm or less. The diamond particles preferably include detonation nanodiamond particles.

SEMICONDUCTOR CATALYST, CATALYST ELECTRODE, METHOD FOR PRODUCING REDUCED PRODUCT, AND DEVICE FOR PRODUCING REDUCED PRODUCT

Resumen de: EP4699693A1

A semiconductor catalyst is provided, which exhibits an effect of accelerating a reduction reaction by visible light irradiation and is excellent in durability. The semiconductor catalyst of the present disclosure includes thin film containing nitrogen-containing diamond particles in a plane direction and a height direction. The semiconductor catalyst can be produced by, for example, fixing, on a substrate having a positive or negative charge, nitrogen-containing diamond particles having a positive or negative charge, the positive or negative charge of the nitrogen-containing diamond particles being opposite to that of the substrate, and laminating, on the fixed nitrogen-containing diamond particles, nitrogen-containing diamond particles having a positive or negative charge, the positive or negative charge of the laminated nitrogen-containing diamond particles being opposite to that of the fixed nitrogen-containing diamond particles. The step of laminating is performed at least once after the step of fixing.

Method and plasma reactor for the production of hydrogen gas

Resumen de: GB2643493A

A method for the production of hydrogen gas comprising (i) providing a DC electrical power supply, (ii) providing a plasma reactor with chamber 105, plasma torch 135 with a plasma cathode extending in to the chamber, a plasma anode extending into the chamber, and first and second spray systems which extend into the chamber, (iii) establishing a DC electric potential between the cathode and anode to generate and sustain a reaction zone about a plasma arc, (iv) providing a spray of hydrogen containing feedstock into the reaction zone from the first spray system whereby a mixture of gases comprising hydrogen gas is formed in the chamber by decomposition of the feedstock, and (v) providing a spray of water into adjacent to the reaction zone from the second spray system, wherein the water spray cools and dilutes the mixture of gases formed in step (iv). A plasma reactor comprising a chamber, plasma torch comprising a plasma cathode extending into the chamber and multi-functional device with plasma anode extending into the chamber, first spray anode with first annual passage surrounding the anode and providing a spray of hydrogen containing feedstock, and a second spray system with second annual passage surrounding the first passage and providing a spray of water.

PROCESS FOR CRACKING AMMONIA

Resumen de: CN120835863A

A process for catalytic cracking of ammonia, the process comprising: supplying an ammonia feed gas to one or more heated catalyst-containing reaction vessels disposed within an ammonia cracking reactor; and cracking ammonia in the ammonia feed gas in the one or more catalyst-containing reaction vessels to produce a hydrogen-containing stream wherein the reaction vessel or each of the reaction vessels has a wall comprised of at least a first alloy and a second alloy wherein the first alloy is more resistant to nitriding than the second alloy, and the second alloy provides mechanical support for the first alloy, and wherein at least a portion of the wall adjacent the catalyst is comprised of the first alloy.

CATALYST MATERIALS

Resumen de: WO2024218486A1

Oxygen evolution catalyst materials are provided with a pyrochlore-type structure and with (i) calcium and / or sodium as A-site elements of the pyrochlore-type structure; (ii) iridium and / or ruthenium as first B-site elements of the pyrochlore-type structure; (iii) niobium and / or tantalum as second B-site elements of the pyrochlore-type structure; and (iv) a molar ratio of A-site elements: first and second B-site elements is in the range of and including 0.8: 1 to 1:1.

METHOD AND SYSTEM FOR STORING HYDROGEN

Resumen de: 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

NANOSTRUCTURED ELECTRODE FOR WATER ELECTROLYSIS AND WATER ELECTROLYZER COMPRISING THE SAME

Resumen de: SE2350468A1

An electrode (200) for a proton exchange membrane water electrolyzer, the electrode (200) comprising a plurality of elongated nanostructures (220) arranged on a substrate (210). The elongated nanostructures (220) are attached to the substrate (210) at a respective first end and extend along a direction perpendicular to a plane of extension of the substrate (210). The plurality of elongated nanostructures (220) are coated with a conformal protective layer (230), and a catalyst layer (240) is arranged on the conformal protective layer. The catalyst layer (240) comprises a plurality of nanoparticles (241), the nanoparticles (241) forming a continuous coating on at least a part of the surface of the plurality of elongated nanostructures (220).

PROCESS FOR CRACKING AMMONIA

Resumen de: CN120813538A

A process for catalytic cracking of ammonia, the process comprising: supplying an ammonia feed gas to one or more heated catalyst-containing reaction vessels disposed within an ammonia cracking reactor; and cracking ammonia in the ammonia feed gas in the one or more catalyst-containing reaction vessels to produce a hydrogen-containing stream wherein the ammonia feed gas is fed to the or each reaction vessel at a pressure of at least 10 bar wherein the or each reaction vessel is heated to a temperature of at least 500 DEG C, and wherein the or each of the reaction vessels has a wall comprising or consisting of an alloy selected to resist both nitriding and creep deformation without failure at said temperature and pressure over an operating period of at least 1000 hours, 5000 hours, 10,000 hours, 50,000 hours or 100,000 hours.

ELECTROLYZER SYSTEMS AND OPERATION THEREOF

Resumen de: US20260028730A1

Conventional control schemes for electrolyzers focus on maximizing electrical efficiency, which describes the relationship between the electrical energy consumed and the gas produced by the electrolyzer. However, the cost associated with high electrical efficiency may be unnecessarily expensive. In one embodiment presented herein, a model is used to determine the cost (or profit) associated with a gas produced by the electrolyzer at each of a plurality of operating conditions. The control system can select the operating condition to use based on which operating condition is associated with the lowest cost (or highest profit), even though that operating condition may not be associated with the highest electrical efficiency.

METHOD AND PLANT FOR PRODUCING HYDROGEN

Resumen de: AU2024256387A1

The invention relates to a method (100) for producing hydrogen (103), wherein feed water is subjected to electrolysis (10) with a cathode gas (101) being obtained, wherein the cathode gas (101) contains hydrogen, oxygen and some of the feed water, wherein a process gas flow (102) is formed using at least some of the cathode gas (101), wherein the process gas flow (102) contains at least some of the hydrogen, oxygen and feed water contained in the cathode gas (101), and wherein, in the process gas flow (102), at least some of the oxygen is subjected to an oxidative catalytic reaction with some of the hydrogen to form oxidation water, and wherein at least some of the feed water and the oxidation water in the process gas flow (102) are removed from the process gas flow (1029 in a water removal process. The catalytic reaction and the water removal process are carried out using one or more process units (41, 42), wherein the one process unit (41, 42) or each of the plurality of process units (41, 42) has a first adsorptive drying bed (4a), by means of which at least some of the feed water is removed from the process gas flow (102), a catalytic bed (4b) which is arranged downstream of the first drying bed (4a) and by means of which the catalytic reaction is carried out, and a second adsorptive drying bed (4c) which is arranged downstream of the catalytic bed and by means of which at least some of the oxidation water is removed from the process gas flow (102). The invention also pro

PROCESS FOR AMMONIA SYNTHESIS USING GREEN HYDROGEN AND METHOD FOR REVAMPING AN AMMONIA PLANT

Resumen de: AU2024257970A1

Process for synthesis of ammonia wherein: ammonia make-up gas (7) containing hydrogen and nitrogen is reacted in an ammonia converter (15) under ammonia forming conditions thus obtaining an ammonia-containing effluent (8); a first hydrogen portion contained in the ammonia make-up gas (7) is produced by reforming a hydrocarbon source (1) in a reforming process (100); a second hydrogen portion (19) contained in the ammonia make-up gas (7) is produced separately from said reforming process (100), by using at least a renewable energy source (SE, WE); a part of said hydrogen (19) produced in step (c) is stored in a hydrogen storage (103); hydrogen (20) from said hydrogen storage (103) is used to fully or partially replace said second hydrogen portion (19) when said renewable energy source (SE, WE) is fully or partially unavailable. Said process comprising the steps of: assessing an expected flow rate of the hydrogen (19) produced in step (c); adjusting a flow rate of the hydrocarbon source (1) so that a flow rate of the first hydrogen portion in said ammonia make- up gas (7) is in a desired ratio with respect to said expected flow rate; detecting an actual amount, e.g., a filling level, of said hydrogen in said hydrogen storage (103); detecting an actual flow rate of hydrogen produced using the renewable energy source (SE, WE), and adjusting a flow rate of the hydrogen (20) from said hydrogen storage (103) depending on said actual amount detected in said hydrogen storage (103) and

SYSTEMS AND METHODS FOR WATER ELECTROLYSIS WITH ELECTRODES HAVING NICKEL-COBALT-PHOSPHOROUS-BASED COMPOUNDS

Resumen de: EP4700159A1

Systems and methods are provided for water electrolysis. The system includes an electrolyte material configured for the exchange of anions, a first electrode including a nickel-cobalt-phosphorus-based compound, and a second electrode, wherein the first electrode and the second electrode are configured to exchange the anions through the electrolyte material.

Hydrogen generation

Resumen de: GB2700654A

An apparatus 1 for generating hydrogen includes a housing 10 containing a cylindrical first electrode 11 surrounding a part-conical or frusto-conical second electrode 12. Each of the first and second electrode is for submersion within water located within the housing. The first electrode may be an anode and the second electrode may be a cathode. The housing may be fabricated from or include glass or a glass body may be provided within the housing. The glass may be a borosilicate glass or heat tempered glass. The housing may be cylindrical or cuiboid. The distance between a lowermost portion of the housing and an uppermost portion of the housing may be at least three times greater than the height of the anode. The anode may be fabricated from a metal such as stainless steel which may have a protective coating. The anode may comprise a mesh, such as an unwelded mesh, for example with a mesh size of 149 to 841 µm. The cathode may be formed of stainless steel coated with a second metal. The surface of the cathode may be patterned or textured. The anode and cathode may be retained away from the walls of the housing. Figure 1

水素の生成方法

Resumen de: CN120897885A

A method for reacting aluminum with water, the method comprising the steps of: adding aluminum metal to an aqueous solution comprising potassium hydroxide at a concentration between 0.1 M and 0.4 M and a surfactant; stirring the mixture of the previous step; and collecting the generated hydrogen. A composition for use in such a method for reacting aluminum with water, the composition comprising potassium hydroxide and a surfactant.

CONTAMINATION MITIGATION SYSTEM FOR USE IN AN ELECTROLYSIS SYSTEM

Resumen de: EP4700154A1

An electrolysis system includes an electrolyzer stack and a contamination mitigation system. The electrolyzer stack includes an injection port fluidly connected with a cathode compartment of the electrolyzer stack. The contamination mitigation system is configured to remove ions from the electrolyzer stack to mitigate ion contamination in the electrolyzer stack. The contamination mitigation system includes a storage tank including formic acid therein and an injection line fluidly coupled between the storage tank and the injection port. The injection line is configured to direct the formic acid from the storage tank to the injection port for injection into the cathode compartment of the electrolyzer stack.

이온-전도성 멤브레인, 그와 같은 멤브레인의 제조 방법, 그와 같은 멤브레인을 포함하는 전기화학 전지 및 그와 같은 전지를 포함하는 플랜트

Resumen de: AU2024305585A1

The invention relates to an ion-conducting membrane (10) for an electrochemical device, said membrane comprising a layer of a material comprising: - 5% to 30% by weight of a polymer binder and - 70% to 95% by weight of a powdered ceramic, the powdered ceramic comprising ceramic doped with yttrium oxide and/or ceramic doped with cerium oxide. The invention can be used to produce a non-porous membrane for low-temperature electrolysis (0°C to 150°C).

硫空位Co3O4/CdIn2S4-Vs复合材料及其制备方法和应用

Resumen de: CN121551028A

本申请属于催化剂制备技术领域，具体涉及一种硫空位Co3O4/CdIn2S4‑Vs复合材料及其制备方法和应用。该方法将CdIn2S4纳米材料置于H2O2溶液中搅拌，洗涤，干燥，得到具有S空位的CdIn2S4‑Vs纳米材料；然后和Co3O4置于无水乙醇中，搅拌，洗涤，干燥，即得。本发明通过H2O2对CdIn2S4进行刻蚀，构建出具有表面硫空位的CIS‑Vs，其表面硫空位起到电子捕获阱的作用，促使CdIn2S4的光生电子快速转移，从而显著提高光生载流子分离效率。该复合材料的最佳光催化产氢速率达到10.378 mmol h‑1g‑1，是纯CdIn2S4的43倍，循环实验后性能仍能保持在93%。

一种碱性电解槽密封垫片厚度监测系统及监测方法

Resumen de: CN121557875A

本发明公开了一种碱性电解槽密封垫片厚度监测系统及监测方法，包括：图像采集设备，其安装在碱性电解槽的径向外侧；控制系统，其与图像采集设备电连接，包括图像预处理模块，其接收图像数据并对其进行去噪和增强处理；特征提取模块，其提取各极框、密封垫片的边缘特征，得到特征数据；角度畸变矫正模块，其根据拍摄角度误差对各密封垫片的特征数据进行矫正；厚度计算模块，其建立单位特征数据与实际尺寸之间的对应关系，并以此为依据计算各密封垫片的实际厚度数据；输出储存模块。本发明通过图像采集设备与控制系统的多个模块配合实现对各密封垫片厚度变化的实时、精确、自动化监测，解决了传统人工测量方式劳动强度大、误差大及不安全的问题。

一种PEM电解水产氢效率测试装置及测试方法

Nº publicación: CN121556091A 24/02/2026

Solicitante:

上海升水新能源科技有限公司

Resumen de: CN121556091A

本发明提供一种PEM电解水产氢效率测试装置，包括：PEM电解腔以及排气端，所述PEM电解腔设有三组，其三组PEM电解腔规格相同，与现有技术相比，本发明具有如下的有益效果：通过进出水端向电解腔注入去离子水至规定液位，启动电源后，电解过程产生的氢氧气体经排气端分排收集，同时通过外置抽流泵实时监测底部沉淀水体，本发明还提供一种PEM电解水产氢效率测试装置的测试方法，本发明方法具有如下的有益效果：侧封板与内支撑杆构成的密封结构确保电解腔气密性，双极板阵列配合质子交换膜实现高效产氢，而侧测试罐内的氢气浓度传感器可精准监测气体纯度，外置抽流泵则有效排除气泡干扰，多腔并联设计不仅降低单次测试误差。