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916
results.
Updated on
12/06/2025 [07:00:00]
Results 175 to 200 of 916
Absstract of: US2025163586A1
The invention relates to a method for operating an electrolysis plant having an electrolyser for generating hydrogen (H2) and oxygen (O2) as product gases, with water being supplied as starting material and being split at a proton-permeable membrane into hydrogen (H2) and oxygen (O2), a product gas stream being formed in a phase mixture comprising water (H2O) and a relevant product gas, and a product gas stream being supplied to a gas separator arranged downstream of the electrolyser, characterized in that the fluoride release of the membrane is determined on the basis of the operating time, the temporal progression of the fluoride concentration being ascertained, with a measure for the operation-induced degradation of the proton-permeable membrane being ascertained as the result of a release of fluoride. The invention furthermore relates to a corresponding electrolysis plant and to a measuring device for carrying out the method.
Absstract of: US2025153146A1
An ammonia oxidation catalyst and a catalyst system and method using the ammonia oxidation catalyst are provided. The catalyst comprises a metal oxide including titanium and chromium, wherein an energy band gap of the metal oxide measured by UV-Vis DRS is less than 1.4 eV. The catalyst system comprises an ammonia decomposition reactor and a catalyst unit which is located downstream from the ammonia decomposition reactor, and includes the above-described ammonia oxidation catalyst.
Absstract of: EP4556114A1
According to embodiments of the present disclosure, the ammonia oxidation catalyst includes a metal oxide including titanium and chromium, wherein an energy band gap of the metal oxide measured by UV-Vis DRS is less than 1.4 eV. The catalyst system according to embodiments of the present disclosure includes: an ammonia decomposition reactor; and a catalyst unit which is located in a downstream region of the ammonia decomposition reactor, and includes the above-described ammonia oxidation catalyst.
Absstract of: EP4556436A1
The present disclosure relates to a system for generation of blue hydrogen through natural gas reforming, carbon dioxide capture, carbon resource utilization, and reaction product storage. According to an embodiment of the present invention, the system comprises: a natural gas storage container for storing liquefied natural gas (LNG) including shale gas; a hydrocarbon reformer in which a gas mixture containing hydrogen and carbon dioxide is produced by a reaction between water supplied from outside and the natural gas or shale gas supplied from the natural gas storage container; a hydrogen filling station in which hydrogen produced from the hydrocarbon reformer is received and stored; a reactor in which carbon dioxide produced from the hydrocarbon reformer is received and reacted with a basic alkali mixed solution to capture carbon dioxide, and a reaction product comprising the captured carbon dioxide is collected, and a carbon dioxide reaction product and a waste solution are separated from the reaction product; a carbon resource storage container storing the carbon dioxide product separated from the reactor; and a hydrogen generator in which the carbon dioxide reaction product separated from the reactor is directly received or the carbon dioxide reaction product received via the carbon resource storage container is used to product hydrogen, and the produced hydrogen is delivered to the hydrogen filling station.
Absstract of: EP4557412A1
A method for generating power or producing hydrogen from a carbon source, the method including a chemical conversion step of making, in a chemical conversion unit, a mixture obtained by mixing a solution containing an intermediate medium with a carbon source to react at a temperature at which chemical exergy of the carbon source exceeds chemical exergy in a reduced state of the intermediate medium to reduce the intermediate medium while oxidizing the carbon source, an electrochemical conversion step of bringing the intermediate medium reduced at the chemical conversion step into contact with an anode of a battery structure in an electrochemical conversion unit including the battery structure, and bringing oxygen or air into contact with a cathode of the battery structure to generate power, or bringing water into contact to produce hydrogen, and a reuse step of returning a solution containing the intermediate medium after the electrochemical conversion step to the mixture, and an energy conversion system.
Absstract of: EP4556596A1
Provided is an operation support apparatus including: a calculation unit which calculates, based on an electricity cost or an amount of power consumption for each of predetermined times associated with operation of a plurality of electrolyzers operating in parallel, an amount of production of a product for each of the times that satisfies a target amount of production of the product, the product being produced by the plurality of electrolyzers over a predetermined period of time; and a specification unit which specifies an electrolyzer to be operated among the plurality of electrolyzers, based on the amount of production calculated by the calculation unit. The calculation unit may calculate the amount of production that satisfies the target amount of production of the product over the period of time and minimizes an electricity cost or an amount of power consumption over the period of time.
Absstract of: EP4556454A1
A methane synthesis system according to the present invention includes: a co-electrolysis part that obtains hydrogen and carbon monoxide by electrolyzing water and carbon dioxide, a methanation reaction part that obtains a product gas containing methane by a methanation reaction that uses the hydrogen and the carbon monoxide, and a cooler having a distribution channel in which a refrigerant capable of phase transition, is distributed. The cooler cools the methanation reaction part using heat of vaporization from vaporizing at least a portion of the refrigerant on an inside of the distribution channel.
Absstract of: EP4556547A1
Process for the production of a fuel. In a conversion step carbon dioxide is reacted with hydrogen to form a liquid carrier. The carbon dioxide is for instance collected with a direct air capture system. The hydrogen can for example be generated using renewable sources. After storage and transport to a site of use, the liquid carrier is mixed with water to form a ready mix. During a break-up step, the liquid carrier is converted to a fuel while the temperature and the pressure of the ready mix are maintained at sub- or supercritical conditions.
Absstract of: EP4556594A1
The invention describes a wind-powered electrolysis arrangement (1) comprising a plurality of wind turbines (100) of an offshore wind park (10); a distributed electrolyser plant (11) comprising a plurality of electrolysers (110), wherein each electrolyser (110) is arranged on a wind turbine platform (100P); a balance of plant (11BoP) of the distributed electrolyser plant (11), installed on a main platform (10P) in the wind park (10); and a plurality of product pipelines (12), wherein each product pipeline (12) is arranged to convey a number of products (20, 21, 22, 23, 24, 25) between the balance of plant (11BoP) and a distributed electrolyser (110). The invention further describes a method of operating such a wind-powered electrolysis arrangement (1) .
Absstract of: EP4556708A1
A wind power plant (1), comprising:one or more generator devices (7) for generating electrical power (P<sub>G</sub>) from wind power,a plurality of hydrogen production units (15) for producing hydrogen from the generated electrical power (P<sub>B</sub>),a plurality of DC-DC converters (16) each being electrically connected with the one or more generator devices (7) and with a respective one of the plurality of hydrogen production units (15), and each DC-DC converter (16) being configured for supplying power (P<sub>a</sub>) with a tunable output voltage (U<sub>a</sub>) to the respective hydrogen production unit (15), anda control device (28) for controlling the power (P<sub>a</sub>) supplied by each DC-DC converter (16) to the respective hydrogen production unit (15) based on a current power output (P<sub>G</sub>) of the one or more generator devices (7).With the proposed wind turbine plant the supply of power to the plurality of hydrogen production units can be improved.
Absstract of: EP4556456A1
The present invention relates to a process for making ethylene glycols, selected from mono ethylene glycol, oligo ethylene glycols, poly ethylene glycols, and mixtures thereof, and alkanol ethoxylates, based on non-fossil energy, ethylene glycols, selected from mono ethylene glycol, oligo ethylene glycols, poly ethylene glycols, and mixtures thereof, and alkanol ethoxylates, having a low molar share of deuterium, the use of the molar share of deuterium in hydrogen and downstream compounds based on hydrogen for tracing the origin, especially the energetic origin, of the hydrogen and downstream compounds based on hydrogen, wherein the compounds are ethylene glycols, selected from mono ethylene glycol, oligo ethylene glycols, poly ethylene glycols, and mixtures thereof, and alkanol ethoxylates, a process for tracing the origin, especially the energetic origin, of hydrogen and downstream compounds based on hydrogen by determining the molar share of deuterium in hydrogen and said downstream compounds based on hydrogen, wherein the compounds are ethylene glycols, selected from mono ethylene glycol, oligo ethylene glycols, poly ethylene glycols, and mixtures thereof, and alkanol ethoxylates, coolants, comprising such mono ethylene glycol, brake fluids comprising such oligo ethylene glycols and/or such alkanol ethoxylates, cosmetics, shampoos, or nonionic or ionic detergents comprising such poly ethylene glycols and/or such alkanol ethoxylates, poly ethylene terephthalate, comprising
Absstract of: CN119546546A
The invention relates to a method for producing hydrogen by photodissociation of water, comprising at least one step of contacting an aqueous solution with oxidized nanodiamonds under solar, natural or artificial illumination (or light).
Absstract of: WO2024013139A1
The invention relates to a facility comprising: - a series of n electrolysers (4) designed to electrolyse water (1) and produce a hydrogen-aqueous solution mixture (5), the series having an overall capacity greater than 40 MW; - a gas-liquid separation device (8) configured to remove the aqueous solution contained in the mixture (5) produced by the series of n electrolysers (4) and produce a hydrogen stream (9). The gas-liquid separation device (8) comprises two flow conveying lines (21, 22) arranged one above the other; either or both of the two conveying lines being supplied with the mixture (5) and the two conveying lines being in fluid communication with one another via one or more segments (23) so that the hydrogen passes from the lower line (22) to the upper line (21) and/or the aqueous solution passes from the upper line to the (21) lower line (22).
Absstract of: CN119497764A
The present invention relates to a method for operating a high temperature solid oxide electrolysis system suitable for converting a fuel stream into a product stream and a system for implementing the method. The method includes drying the moist purge gas and using the waste purge gas as a regeneration gas in the drying unit.
Absstract of: WO2024041728A1
A control unit (40) for a Power-to-Hydrogen (PtH) plant (100) is provided. The control unit (40) includes at least one model (41) and is configure to: calculate maximum efficiency point tracking of the PtH plant (100) by solving an objective function having a predetermined hydrogen production rate of the PtH plant or a predetermined amount of energy input to the PtH plant using the at least one model, wherein the control unit receives measured parameters indicative of status of components of the PtH plant as an input to the at least one model; determine one or more set points for a coordinated operation of the components of the PtH plant based on a solution obtained by solving the objective function; and provide the one or more set points to one or more of the components of the PtH plant to operate the PtH at the maximum efficiency point.
Absstract of: EP4556437A1
The present invention relates to a system for producing blue hydrogen, capturing carbon dioxide and sulfur oxide, recycling carbon and storing reactants, generating power by using a fuel cell, and creating an artificial forest. One embodiment of the present invention comprises: a natural gas storage that stores liquefied natural gas (LNG) including shale gas; a hydrocarbon reformer that reacts the natural gas or the shale gas supplied from the natural gas storage with externally injected water to produce a gaseous mixture containing hydrogen and carbon dioxide; a hydrogen charging station that receives and stores the hydrogen generated from the hydrocarbon reformer; a reactor that receives at least one of carbon dioxide generated from the hydrocarbon reformer or carbon dioxide generated from an exhaust gas source including a power plant, a steel mill, or a cement factory, reacts same with a basic alkali mixture to capture carbon dioxide, collects a reactant containing the collected carbon dioxide, and separates a carbon dioxide reactant and waste solution from the reactant; a carbon resource storage that stores the carbon dioxide reactant separated at the reactor; a hydrogen generator that directly receives the separated carbon dioxide reactant from the reactor or generates hydrogen by using the carbon dioxide reactant delivered via the carbon resource storage, and transfers the generated hydrogen to the hydrogen charging station; a fuel cell that receives the hydrogen from t
Absstract of: CN119213172A
The invention relates to a solid oxide electrolysis unit for industrial hydrogen, carbon monoxide or synthesis gas production, comprising at least two solid oxide electrolysis cores, an electrical supply for managing electrical power to the solid oxide electrolysis cores, and a conduit connected to the solid oxide electrolysis cores, and each solid oxide electrolysis core comprises a plurality of solid oxide electrolysis stacks of solid oxide electrolysis cells. According to the invention, the solid oxide electrolysis unit comprises a power supply module comprising a transformer and at least one power supply unit, and a pipe module comprising pipe headers and fluid connections to and from the solid oxide electrolysis core, wherein the power supply module and the pipe module are arranged adjacent to each other, and the solid oxide electrolysis core is arranged above the power supply module and/or the pipe module.
Absstract of: AU2023272285A1
The invention relates to a water electrolyzer system (1) for producing hydrogen. The water electrolyzer system (1) comprises an electrolysis stack (8) for converting water into hydrogen, power electronics (12) for transforming the alternating current into a direct-current in order to supply the electrolysis stack (8), components (56, 64, 72, 80) for preparing the process media supplied to and discharged from the electrolysis stack (8), and a control unit (18) for controlling the electrolysis stack (8), the power electronics (12), and the components (56, 64, 72, 80) for preparing the media. At least the electrolysis stack (8), the power electronics (12), and the control unit (18) are formed together as an electrolyzer module (36), and the components (56, 64, 72, 80) for preparing the media and for conveying the media are formed together as a process module (52). The modules (36, 52) are equipped with connection possibilities (32, 40, 48, 84), via which the individual modules (36, 52) can be fluidically and electrically connected together.
Absstract of: CN120020278A
本申请公开了一种PEM电解槽测试系统及方法，应用于水电解制氢技术领域，PEM电解槽测试系统包括：储水排气单元的出水口与PEM电解槽的去离子水进口连接，储水排气单元的进气口与PEM电解槽的氧气出口连接；水供应测试单元设置于储水排气单元底部；气体含水测试单元的进气口与储水排气单元的排气口连接；氢气产出测试单元的进气口与PEM电解槽的氢气出口连接；测试数据记录单元分别与水供应测试单元、气体含水测试单元和氢气产出测试单元连接。这样可以实现对PEM电解槽的运行时间和工作电流、去离子水供应量、去离子水剩余量、混合气体中的水含量和氢气含量的测量与记录，从而可以实现阳极渗水量和阴极渗氢量的精准测量。
Absstract of: CN119317735A
The invention relates to a device (1) for supplying hydrogen (H2) by means of an electrolysis unit (2), which enables the service life of the electrolysis unit (2) to be as long as possible even in the event of fluctuations in the energy supply of the electrolysis unit (2), a reciprocating piston compressor (3) is provided for compressing hydrogen (H2) generated by the electrolysis unit (2), the reciprocating piston compressor (3) has at least one automatic suction valve (5), is provided with a lifting gripper (6) for selectively holding the suction valve (5) in an open position, is provided with an electrically actuatable actuator (7) for actuating the lifting gripper (6), and is provided with a control unit (4) for controlling the actuator (7), which control unit (4) is designed to actuate the actuator (7) in such a way that the actuator (7) can be actuated by the lifting gripper (6). In this way, the output pressure (p1) of the hydrogen gas (H2) at the output of the electrolysis unit (2) or the pressure difference (p) between the anode and the cathode of the electrolysis unit (2) can be adjusted to a predetermined setpoint value (p1soll, psoll).
Absstract of: TW202403105A
An electrolyzer system comprising an electrochemical cell and an electrolyzer fluidic member utilized to supply a fluid to the electrochemical cell is provided. The electrolyzer fluidic member comprises a polymer composition that includes a polyarylene sulfide.
Absstract of: MX2024012569A
Two phased production of hydrogen involving an electrolytic cell containing first and second electrodes and a solution comprising a metal salt. The first and second electrodes are connected to an external electric energy source during a charging phase, which deposits the metal of the metal salt on the first electrode and evolves oxygen on the second electrode. Once the charging phase has been completed the first and second electrodes are disconnected from the external electric energy source with the cell containing the deposited metal kept in a standby condition until hydrogen production is required. During a discharging phase, the first and second electrodes are short circuited, whereby the metal is dissolved from the first electrode and hydrogen is evolved from the second electrode without any appreciable simultaneous withdrawal of electrical energy. The production of hydrogen is thereby increased accordingly. Variations of the above are also provided.
Absstract of: AU2024227784A1
An apparatus and process for the activation of catalyst material utilized in ammonia cracking can include an initial use of hydrogen and heat to perform an initial stage of catalyst activation and a subsequent use of ammonia and heat to perform a subsequent state of catalyst activation. The subsequent use of ammonia can be configured so that different catalytic material at different plant elements are activated in a pre-selected sequence to provide activation of the catalytic material utilized in different plant elements. Some embodiments can be configured to avoid excess temperatures that can be detrimental to equipment that can be positioned upstream of a furnace in some embodiments while also avoiding sintering of the catalytic material.
Absstract of: AU2023343511A1
The problem addressed by the present invention is that of specifying a process for producing lithium hydroxide which is very energy efficient. The process shall especially operate without consumption of thermal energy. The process shall be able to handle, as raw material, Li-containing waters generated during digestion of spent lithium-ion batteries. The LiOH produced by the process shall have a high purity sufficient for direct manufacture of new LIB. The process shall achieve a high throughput and have small footprint in order that it can be combined with existing processes for workup of used LIB/for production of new LIB to form a closed, continuous production loop. The process according to the invention is an electrolytic membrane process operating with a LiSICon membrane. It is a special aspect of the process that the electrolysis is operated up to the precipitation limit of the lithium hydroxide.
Nº publicación: KR20250068612A 16/05/2025
Applicant:
에보닉오퍼레이션스게엠베하
Absstract of: AU2023343512A1
The present invention relates to the electrochemical production of hydrogen and lithium hydroxide from Li+-containing water using a LiSICon membrane. The problem addressed by the present invention is that of specifying a process which is operable economically even on an industrial scale. The process shall especially exhibit a high energy efficiency and achieve a long service life of the membrane even when the employed feed contains impurities harmful to LiSICon materials. A particular aspect of the process is that the cell simultaneously separates off the lithium via the membrane and effects electrolysis of water. An essential aspect of the process is that the electrochemical process is performed in a basic environment, more precisely at pH 9 to 13. The pH is adjusted by addition of a basic compound to the feed.
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