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1130
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Updated on
16/07/2026 [07:24:00]
Results 550 to 575 of 1130
Absstract of: DE102024136557A1
Verfahren zum Betrieb eines Elektrolyse-Zellen-Systems mit mindestens einer Elektrolyse-Zelle bei dem mittels Elektrolyse aus einem Wasser (H2O) umfassenden Feedgas unter Einsatz elektrischer Energie ein Wasserstoff (H2)umfassendes Produktgas erzeugt wird mit den Schritten:Bereitstellen eines Elektrolyse-Zellen-Systems mit einer Zuleitung für die Zuleitung von Feedgas und einer Ableitung für die Ableitung von Produktgas;Bereitstellen einer Messeinrichtung zur Erfassung eines, den Sauerstoffpartialdruck im Produktgas repräsentierenden Messwertes (UN,out);Einspeisen eines Elektrolysestroms in das Elektrolyse-Zellen-System;Ermitteln eines Feed-Conversion-Ist-Wertes (FCist);Ermitteln einer Feed-Conversion-Regeldifferenz (FCdelta) zwischen dem Feed-Conversion-Ist-Wert (FCist) und einem vorgebbaren Feed-Conversion-Soll-Wert (FCsoll);Erzeugen eines Stellsignals (S) in Abhängigkeit der Feed-Conversion-Regeldifferenz (FCdelta);Einstellen eines oder mehrerer Prozessparameter des Elektrolyse-Zellen-Systems in Abhängigkeit des Stellsignals (S).
Absstract of: DE102024136564A1
Verfahren zum Betrieb eines Elektrolyse-Zellen-Systems mit mindestens einer Elektrolyse-Zelle bei dem mittels Elektrolyse aus einem Wasser (H2O) umfassenden Feedgas unter Einsatz elektrischer Energie ein Wasserstoff (H2)umfassendes Produktgas erzeugt wird mit den Schritten:Bereitstellen eines Elektrolyse-Zellen-Systems mit einer Zuleitung für die Zuleitung von Feedgas und einer Ableitung für die Ableitung von Produktgas;Bereitstellen einer Messeinrichtung zur Erfassung eines, den Sauerstoffpartialdruck im Feedgas repräsentierenden Messwertes (UN,in);Bereitstellen einer Messeinrichtung zur Erfassung eines, den Sauerstoffpartialdruck im Produktgas repräsentierenden Messwertes (UN,out) und/oder Bereitstellen einer Messeinrichtung zur Erfassung eines, die Differenz des Sauerstoffpartialdrucks im Feedgas zu dem Sauerstoffpartialdruck im Produktgas (16) repräsentierenden Messwertes (UN,diff);Einspeisen eines Elektrolysestroms in das Elektrolyse-Zellen-System;Ermitteln eines Feed-Conversion-Ist-Wertes (FCist);Ermitteln einer Feed-Conversion-Regeldifferenz (FCdelta) zwischen dem Feed-Conversion-Ist-Wert (FCist) und einem vorgebbaren Feed-Conversion-Soll-Wert (FCsoll);Erzeugen eines Stellsignals (S) in Abhängigkeit der Feed-Conversion-Regeldifferenz (FCdelta);Einstellen eines oder mehrerer Prozessparameter des Elektrolyse-Zellen-Systems in Abhängigkeit des Stellsignals (S).
Absstract of: WO2026119721A1
The invention relates in particular to a facility for producing dihydrogen, the facility comprising an electrochemical device (1) and a fluid network that comprises at least one inlet pipe (3) configured to convey a fluid inlet flow to the electrochemical device (1). The inlet pipe (3) is provided with a first heat exchanger (10), the first heat exchanger (10) belonging to a first heating stage (E1) for heating the inlet flow using the heat of an outgoing flow (4, 9) from the electrochemical device (1) in order to increase the heat of the fluid inlet flow through a recirculation branch, and an electric gas heater (5) positioned downstream of the first exchanger (10). The inlet pipe (3) is also provided with a second heat exchanger (20) belonging to a second heating stage (E2), the two heating stages (E1, E2) being positioned one after the other on the inlet pipe (3).
Absstract of: WO2026121171A1
This hydrogen production system comprises: a steam electrolysis device comprising an electrolysis cell that is configured so as to generate a hydrogen gas from steam; a hydrogen gas supply line for guiding the hydrogen gas discharged from the steam electrolysis device to an object to be supplied with hydrogen; a cooler, which is disposed on the hydrogen gas supply line, for cooling the hydrogen gas; a dehumidifier disposed in the hydrogen gas supply line in the downstream of the cooler, the dehumidifier containing an adsorbent for removing moisture from the hydrogen gas flowing downstream of the cooler; a regeneration gas supply line for supplying a regeneration gas for regenerating the adsorbent to the dehumidifier; and a first heater configured to heat the regeneration gas flowing through the regeneration gas supply line by using, as a heat source, the hydrogen gas flowing upstream of the cooler in the hydrogen gas supply line.
Absstract of: WO2026121169A1
A hydrogen production system according to the present invention comprises: a steam electrolysis device including an electrolysis cell configured to generate hydrogen gas from steam; a hydrogen gas supply line for guiding the hydrogen gas discharged from the steam electrolysis device to a hydrogen supply target; a cooler that is disposed on the hydrogen gas supply line and is for cooling the hydrogen gas; a dehumidifier that is disposed downstream from the cooler on the hydrogen gas supply line and includes an adsorbent for recovering moisture from the hydrogen gas flowing downstream of the cooler; a regeneration gas supply line for extracting, from the hydrogen gas supply line, dehumidified hydrogen gas discharged from the dehumidifier, and returning the dehumidified hydrogen gas to the dehumidifier as a regeneration gas for the adsorbent; and a regeneration gas blower for transmitting, to the steam electrolysis device, the regeneration gas discharged from the dehumidifier.
Absstract of: WO2026120193A1
Hydrogen therapy device (1) comprising: an electrolysis system comprising an arrangement of implantable electrodes, an electric generator, a control system configured to place the electrolysis system in a production state to perform electrolysis of a bodily fluid to produce hydrogen, wherein the control system is configured to measure a production parameter representative of the hydrogen produced, and to control the electric generator as a function of the production parameter to deliver the quantity of hydrogen
Absstract of: WO2026120192A1
A hydrogen therapy device comprising an electrolysis system including an arrangement of implantable electrodes, an electric generator, and a control system configured to place the electrolysis system in a production state to perform electrolysis of a bodily fluid according to a plurality of application parameters to produce hydrogen, wherein at least one of the application parameters is adjustable and the control system is configured to measure a production parameter representative of the hydrogen produced, and to modulate the adjustable application parameter of the electrolysis system as a function of the production parameter in order to deliver a quantity of hydrogen.
Absstract of: WO2026120194A1
A hydrogen therapy device (1) comprising: an electrolysis system comprising an arrangement of implantable electrodes having an adjustable electrolysis surface area, an electric generator, a control system configured to place the electrolysis system in a production state to perform electrolysis of a bodily fluid to produce hydrogen, wherein the electrolysis surface area is adjustable and the control system is configured to measure a production parameter representative of the hydrogen produced, and to adjust the electrolysis surface area of the electrode arrangement as a function of the production parameter in order to deliver the quantity of hydrogen.
Absstract of: US20260159972A1
0000 Disclosed herein are heterocatalysts for hydrogen generation and carbon dioxide conversion based on electrochemical and photochemical technologies. The catalysts may be used for a hydrogen evolution reaction from water splitting and/or for a carbon dioxide reduction reaction. The catalysts may comprise metal sulfide. The catalysts may be identified using machine learning algorithms.
Absstract of: US20260159971A1
A protonic ceramic electrochemical cell (PCEC) includes an oxygen electrode configured to produce oxygen gas from steam and a hydrogen electrode configured to produce hydrogen gas from the steam. The oxygen electrode includes a first side and a second side opposite to the first side. A proton-conducting ceramic electrolyte is between the hydrogen electrode and the first side of the oxygen electrode. The PCEC further includes a contact material adjacent to the second side of the oxygen electrode. The contact material comprises a chemical formula LaMxN1−xO3−δ, where M and N are independently selected from a transition metal; x is a real number in a range of 0≤x≤1; and δ is an oxygen deficiency. Also disclosed is a PCEC stack and a method of producing hydrogen gas.
Absstract of: WO2026118231A1
A solid oxide electrolysis cell, a solid oxide electrolysis stack, and a preparation method therefor and the use thereof. The solid oxide electrolysis cell comprises an electrolysis cell (100), wherein the electrolysis cell (100) comprises an anode (1), an electrolyte (2) and a cathode (3). The anode (1) and the cathode (3) are made of porous composite ceramic comprising an electronic conductive phase and an oxygen-ion conductive phase, wherein the volume fraction of the electronic conductive phase is not less than 40%; and the porosity of the porous composite ceramic is 5-95%. The solid oxide electrolysis stack comprises the electrolysis cell (100). By means of the electrolysis cell or the electrolysis stack, the hydrogen production reaction by means of electrolysis of water is coupled with an oxidation reaction of combustible gas, which can reduce the power consumption for hydrogen production, and provide products such as hydrogen, synthetic ammonia feed gas, carbon dioxide or synthesis gas, thereby achieving low-cost preparation.
Absstract of: US20260159970A1
0000 The present disclosure relates to an electrolysis system for generating hydrogen, the system comprising an electrolyzer comprising an electrolyte water inlet, a first gas outlet and a second gas outlet, an electrical generator configured to generate electricity, preferably for the electrolyzer, said electrical generator being connected to the first and/or second gas outlet of the electrolyzer and configured to be powered, at least in part, by gas flow provided via the first and/or second gas outlet, the system further comprising an electrolyte pump for supplying the electrolyzer with electrolyte water, wherein the electrical generator is a motor-generator comprising a first mode for generating electricity and a second mode for using electricity to drive the electrolyte pump.
Absstract of: AU2024327331A1
Electrolysis system, energy balancing system, method for balancing electrical power in an electrical network, computer program, controller and an electrical energy source The present invention pertains to an electrolysis system (1) and an energy balancing system (10) comprising a renewable electrical energy source (2) and the electrolysis system (1) that are electrically connected, wherein a production of electrical power of the renewable electrical energy source (2) is controlled by generator controller (5) and an absorption of electrical power by an electrolysis process (5) of the electrolysis system (3) is controlled by a main power controller (2) and an electrolysis controller (4). The electrolysis controller (4) is adapted to determine a capacity of the electrolysis system (3) of converting any additional electrical power and to transmit an indicator value (7) indicative of the electrolysis process (5) being capable or not capable of absorbing any additional electrical power to the main power controller (2) and/or to the generator controller (12) for adjusting the production and/or absorption of electrical power.
Absstract of: EP4756076A1
0001 A process for producing a carbon monoxide rich product stream by electrolysis of carbon dioxide in an electrolyzer. Due to separation of the respective anode and cathode side product streams, a first off-gas stream containing carbon monoxide is generated at the cathode side, whereas a second off-gas stream containing oxygen is generated at the anode side. Both off-gas streams are supplied to an oxidizing device, in which the oxygen of the second off-gas stream is at least partially reacted with carbon monoxide present in the first off-gas stream to form carbon dioxide, whereby an oxygen depleted stream containing carbon dioxide is formed and recycled to the electrolyzer. A control process is applied which enables a controlled oxidation of carbon monoxide with oxygen to form carbon dioxide. Optionally, also hydrogen contained in the first off-gas stream is converted in the oxidizing device to form water.
Absstract of: EP4755844A1
0001 Provided is a method for producing hydrogen in which ammonia can be decomposed at high efficiency even with low power consumption to produce hydrogen. The method for producing hydrogen of the present invention includes a step in which an ammonia decomposition catalyst including a titanate represented by the following general formula (1) or a titanium oxynitride represented by the following general formula (2) is brought into contact with ammonia under irradiation with microwaves at low output.
ATiO<3-x> (1)
(In the general formula (1), A represents at least one element selected from the group consisting of Ba and Sr, and x is a value represented by 0.1 ≤ x ≤ 2.0.)
ATiO<3-x>N
Absstract of: GB2632328A
Disclosed is a methanation method comprising an electrolyser system, the electrolyser system (20) comprising an electrolyser (10) having at least one electrolyser cell (11), at least one fuel input (14) and at least one offgas output (46), the method further comprising supplying fuel comprising at least water and either or both carbon dioxide and carbon monoxide to the at least one fuel inlet, powering the electrolyser cell (11) with electricity to split water into hydrogen and oxygen, wherein the electrolyser (10) is operated at a temperature at or in excess of 150℃, and methanation occurs to the carbon dioxide and/or carbon monoxide in the electrolyser (10). There may be separate offgas outputs for methane and oxygen, as well as a condensation step for water and a separation step after the reaction. A methanation catalyst may be used, which is preferably nickel-based. Further disclosed is an electrolyser system, a method for generating methane, and a method for operating an electrolyser system.
Absstract of: EP4501433A1
Process of separating hydrogen from an effluent gas produced by an endothermic ammonia cracking reaction, said effluent gas comprising hydrogen and nitrogen, said process comprising a step of pressure swing adsorption separation of the effluent gas, said step comprising separating the effluent gas by pressure swing adsorption according to a pressure cycle, thereby producing a hydrogen product gas and generating off gas, the pressure cycle comprising an off gas generation period of time during which said off gas is generated, said off gas generation period of time comprising :- a fuel off gas generation period of time during which a fuel off gas is generated,- a nitrogen richer off gas generation period of time during which a nitrogen richer off gas is generated, said nitrogen richer off gas having a higher nitrogen content than the fuel off gas, wherein the process comprises :- routing the fuel off gas to a furnace (5) and combustion of said fuel off gas in said furnace (5) to provide heat to the endothermic ammonia cracking reaction,- diverting the nitrogen richer off gas from the furnace (5).
Absstract of: EP4755847A1
Provided is an ammonia decomposition catalyst which exhibits high ammonia decomposition activity even at a low reaction temperature and a low reaction pressure, and which has stable catalytic properties such that it can be repeatedly used in reactions even after being exposed to air or water. A barium nitride of the present invention is represented by the following general formula (1): BaAN2-x (1), wherein in general formula (1), A represents at least one element selected from the group consisting of Si, Fe, Ni, Mo, and Zr, and x represents a value expressed by 0 ≤ x < 2.0.
Absstract of: WO2025067773A1
The invention relates to an offshore electrolysis system (100) comprising: a wind turbine (1) having a platform (3) and an electrolysis plant (5) which is arranged on the platform (3) and is connected to the wind turbine (1) in order to supply electrolysis current; and a water supply device (7) which is connected to the electrolysis plant (5) and has a water collector (13) which is designed such that it is possible, without relying on seawater, to obtain water with little or no salt content which can be used as feed water for operating the electrolysis plant (5). The invention also relates to a method for operating a corresponding offshore electrolysis system (100), wherein, without relying on seawater, water is obtained in a water collector (13), the obtained water being of a quality with little or no salt content.
Absstract of: WO2025067765A1
The invention relates to an offshore electrolysis system (100) comprising: a wind turbine (1) with a platform (3) and with an electrolysis plant (5) which is arranged on the platform (3) and is connected to the wind turbine (1) in order to supply electrolysis current; and a heat supply device (7) which is coupled to the electrolysis plant (5) and is designed in such a way that heat can be transferred to the electrolysis plant by means of the heat supply device (7) during a standstill mode so as to maintain the temperature above a minimum temperature. The invention also relates to a method for operating a corresponding offshore electrolysis system. During a standstill mode, heat is transferred to the electrolysis plant (5) by means of the heat supply device (7) so as to maintain the temperature above a minimum temperature and prevent freezing of water-carrying components of the electrolysis plant (5).
Absstract of: WO2025067772A1
The invention relates to an electrolysis system (100) comprising: a wind turbine (1); an electrolysis plant (5) which is connected to the wind turbine (1) in order to supply electrolysis current, wherein an island network is implemented without connection to a power supply network; and a heat supply device (7) which is coupled to the electrolysis plant (5) and can be operated with a working medium (23), and which has an evaporator (13) and a condenser (11), and which is designed in such a way that, during a standstill mode, condensation heat of the working medium (23) can be transferred to the electrolysis plant (5) by means of the condenser (11) so as to maintain the temperature above a minimum temperature. During a standstill mode, the heat supply device (7) evaporates a working medium and condenses the evaporated working medium (23), condensation heat being generated and transferred to the electrolysis plant (5) so as to maintain the temperature above a minimum temperature and prevent freezing of water-carrying components of the electrolysis plant (5).
Absstract of: GB2702320A
A method of controlling an electrolyser cell stack with a system having a fluid temperature control system is defined. The method inlcudes: a current control system, a voltage monitoring system and monitoring/control systems for the temperatures of the fluid inlet and outlet. The method operates by controlling the current to a fixed value, then calculating a temperature delta between the fluid inlet and outlet, and adjusting the fluid input temperature if the delta is greater than a threshold value. the stack may be operated in a thermoneutral state. A control device in order to operate the method is also detailed. Figure 3
Absstract of: WO2024249646A1
A multi-tier integrated power-to-ammonia system includes a converter for generating ammonia and heat through a reaction involving a compressed mixture of hydrogen and nitrogen gases. The system includes a steam generator that can generate steam using the heat from the reaction, and a reversible solid-oxide system in fluid communication with the steam generator that can separate the steam into oxygen gas and hydrogen gas.
Absstract of: EP4756935A1
The invention relates to a method for preparing an electrocatalyst comprising a first step of mixing and milling of a metal salt, a polyphenol and a surfactant followed by a second step of heating the paste resulting from the first step at a temperature higher than or equal to 700°C under an N2 atmosphere.
Nº publicación: EP4757159A1 10/06/2026
Applicant:
SIEMENS ENERGY GLOBAL GMBH & CO KG [DE]
Siemens Energy Global GmbH & Co. KG
Absstract of: EP4757159A1
A method of operating a power supply system (1) for a multi-stack electrolyzer system (2) is presented, the power supply (1) comprising a transformer unit (3) operable to transform an alternating current electrical power (AC) and a rectifier system (4) operable to convert the alternating current electrical power (AC) to a direct current electrical power (DC), wherein at least two thyristor-type rectifier units (5) are connected in parallel between the transformer unit (3) on the AC side and an electrolysis array (110) on the DC side of the rectifier (4), and wherein the two rectifier units (5) are connected to different electrolyser stacks (6a, 6b), wherein the method comprises controlling the voltage of the rectifier units (5), wherein a reference DC voltage is provided to a control unit (7), wherein the control unit (7) controls the DC voltage (Vdc) to a common reference value (Vdc ref) by providing a corresponding firing angle (αref). Moreover, a related controller, power supply and the multi-stack electrolyzer system, are provided.
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