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1017
results.
Updated on
15/11/2026 [08:03:00]
Results 425 to 450 of 1017
Absstract of: AU2025258654A1
This water electrolysis system uses an alkaline aqueous solution as an electrolytic solution, and is provided with: a cell stack to which the electrolytic solution is supplied; a storage unit in which the electrolytic solution is stored; an annular flow path that connects the storage unit and the cell stack; a pump unit that is provided on the annular flow path; a scale removal unit that is provided on the annular flow path and is capable of removing a scale contained in the electrolytic solution; and a scale component removal unit that is capable of removing scale components dissolved in the electrolytic solution at a saturation concentration or less.
Absstract of: US20260308781A1
The present invention refers to an electrolyzer (1) for the production of hydrogen from an alkaline electrolyte. The electrolyzer (1) comprises a first header (11) and a second header (12) between which a plurality of elementary cells (20) and a plurality of bipolar plates (5, 5′, 5″) are stacked. Each bipolar plate (5) separates two adjacent elementary cells. According to the invention, each of said bipolar plates (5, 5′,5″) comprises two plate-form components (5A, 5B) coupled together and configured so as to define one or more inner cavities (66) for the circulation of a cooling fluid. Furthermore, each bipolar plate (5, 5′, 5″) comprises an inlet section (SI) and an outlet section (SV) respectively for the inlet and outlet of said cooling fluid in said one or more inner cavities (66).
Absstract of: US20260307034A1
0000 A hydrogen production device includes a reactor that produces hydrogen by thermally decomposing a hydrocarbon gas, which is a feed gas, using a catalyst including fine metallic particles. The feed gas is introduced into the reactor through a lower portion of the reactor such that a fluidized bed of the catalyst is formed inside the reactor. The reactor is configured to be supplied with activated catalyst.
Absstract of: US20260307985A1
An ammonia cracking reactor including one or more reaction tubes containing ammonia cracking catalyst; one or more fuel combustion elements for combusting fuel in a fuel combustion zone surrounding the one or more reaction tubes to provide heat energy to support the cracking of ammonia in the one or more reaction tubes; and one or more electrically powered heating elements to provide heat energy to support the cracking of ammonia in the one or more reaction tubes, wherein the one or more fuel combustion elements and the one or more electrically powered heating elements are provided in the same reactor for supporting the cracking of ammonia in the same reaction tubes and together form an electrically assisted fuel burning ammonia cracking reactor.
Absstract of: AU2025375145A1
Provided is a hydrogen production control system for producing hydrogen with different environmental impacts. A hydrogen production control system 20 causes a hydrogen production apparatus 10 to produce hydrogen. The hydrogen production apparatus inputs, to a water electrolysis device 13, a power amount from a renewable energy generation device 12 or a power amount from a power grid 30, and causes the water electrolysis device to electrolyze water to thereby produce hydrogen with different environmental impacts. The hydrogen production apparatus comprises: a renewable energy variation amount prediction unit which predicts variation in the power amount from the renewable energy power generation device; and a type-specific hydrogen production planning unit which creates a type-specific hydrogen production plan for producing hydrogen with different environmental impacts by the hydrogen production apparatus, on the basis of a prediction result from the renewable energy variation amount prediction unit. The type-specific hydrogen production planning unit creates a production plan for producing a first type of hydrogen with a small environmental impact among hydrogen with different environmental impacts by using a power amount in a first case where the power amount from the renewable energy generation device is predicted to be supplied stably.
Absstract of: WO2026208386A1
The present application provides a membrane electrode assembly and a preparation method therefor, an electrolytic cell, and a system for hydrogen production by water electrolysis. The membrane electrode assembly comprises a support layer and a membrane electrode which are stacked, wherein the material of the support layer is a porous metal mesh, the porous metal mesh is formed by interweaving metal wires, and the wire diameter of the metal wires is 0.5-5.5 mm. The support layer is used for supporting the membrane electrode, can provide additional mechanical support for the membrane electrode, and reduces deformation of the membrane electrode under pressure. In addition, the support layer can effectively disperse external pressure, reduce local stress concentration in the membrane electrode, and reduce the risk of damage to the membrane electrode.
Absstract of: CN120830110A
A hydrogen generation device with a breath detection function comprises an electrolytic cell, a gas pipeline, a sensor, a valve switch and a controller, the electrolytic cell is used for electrolyzing water to generate hydrogen-containing gas, the gas pipeline is communicated with the electrolytic cell and provided with a gas outlet, and the gas pipeline is used for receiving the hydrogen-containing gas and outputting the hydrogen-containing gas through the gas outlet. The sensor is used for sensing breathing of a user to generate a breathing signal, the valve switch is arranged in the gas pipeline, the controller is electrically connected with the valve switch and the sensor, and the controller opens the valve switch according to the inspiration signal and closes the valve switch according to the expiration signal; therefore, the hydrogen-containing gas is provided, the hydrogen-containing gas is not provided in the expiration state, the pressure of the breathing tube can be prevented from being too large, the hydrogen-containing gas can be prevented from rapidly flowing to the user when the user inhales again, and then the practicability and the use experience are improved.
Absstract of: US20260307031A1
A hydrogen generation device includes a hydrogen generator body, a secondary coil, an eddy current generating unit, and at least one support member. The hydrogen generator body includes a chamber. One end part of the hydrogen generator body is provided with a first inlet for allowing a first substance to enter the chamber and a second inlet for allowing a second substance to enter the chamber. The other end part of the hydrogen generator body is provided with an outlet and an exhaust port. The secondary coil is wound around the exterior of the hydrogen generator body. The eddy current generating unit is disposed in the chamber at a position corresponding to the secondary coil. The support member has plural holes and is disposed in the chamber. The eddy current generating unit penetrates through the support member and is arranged in the chamber by the support member.
Absstract of: US20260308787A1
0000 An electrolyzer for generating hydrogen from water including electrodes and an electrically non-conductive separator layer extending in a substantially vertical plane including macroscopic through holes. The electrodes themselves include an anode and a cathode. The electrodes are each disposed at opposite faces of the separator. The electrodes each comprise a plurality fins. Each fin of the plurality of fins projects outwardly from the layer for restricting the upward movement of electrode generated bubbles to a bubble stream that is substantially parallel to the vertical plane.
Absstract of: US20260309325A1
0000 An ammonia cracking system includes a first line that is provided with ammonia, a cracker that is provided in the first line and that generates cracked gas containing hydrogen from the ammonia, and a second line that is fluidly connected to the first line at a position downstream of the cracker, the second line supplying liquid ammonia to the cracked gas flowing through the first line to generate mixed gas.
Absstract of: AU2025243755A1
The purpose of the present invention is to improve the energy efficiency of a hydrogen production system as a whole. A hydrogen production system (1) produces hydrogen. The hydrogen production system (1) is provided with: an SOEC (10) that is supplied with an oxidizing gas and steam and generates hydrogen by electrolyzing the supplied steam; a steam generation unit (20) that generates the steam supplied to the SOEC (10) by heating feed water; and a power supply device (40) that supplies power to the SOEC (10) so that the SOEC (10) operates at an operation point exceeding a thermal neutral point. The steam generation unit (20) uses heat generated in the SOEC (10) to heat the feed water, and generates the steam without using heat supplied from outside of the hydrogen production system (1).
Absstract of: AU2025244398A1
The disclosure presents an integrated system consisting of a wastewater production unit, e- methane reactor, an electrolyzer for producing hydrogen, a cryogenic separation unit and an ammonia production unit, where e-methane is produced by reaction of carbon dioxide obtained from direct air capture/biogenic CCh/captured industrial CO2 emissions/oxidized solid carbon, and from CO2 separated from biogas obtained from wastewater treatment, and hydrogen gas from electrolysis of water. The hydrogen gas is also reacted with nitrogen obtained from the cryogenic unit for the synthesis of ammonia, where heat from ammonia synthesis is transferred to e-methane reactor for energy efficiency. By integrating these units and reactors, the disclosure provides a system for efficient use of energy and by-products.
Absstract of: CA3324984A1
An electrochemical cell includes an anode portion, a cathode portion, and an electrolyte membrane. The anode portion includes a first flow field that defines a space in which a first fluid containing water flows to come in contact with a first surface of the electrolyte membrane. The cathode portion includes a second flow field that defines a space in which a second fluid containing a substance to be hydrogenated flows to come in contact with a second surface of the electrolyte membrane. The second flow field includes a porous layer formed of a conductive material. The porous layer in the cathode portion has compressive strain not less than 0.3 and not more than 0.8.
Absstract of: KR20260145211A
0001a 본 발명은 챔버내의 전극에 고전위에서 미세 전류와 펄스전압을 각각 제공하되, AIC 모듈이 펄스 전압을 정밀 제어함으로써 전류 효율을 높이고, 반응 계면의 활성화를 유도함으로써 수소생산효율을 향상시킬 수 있는 AIC 기반 실시간 제어 수전해시스템 및 이를 이용한 고효율 수소생산방법에 관한 것이다. 본 발명은 전해액이 충전되어 있는 챔버; 상기 챔버 내에 일정 간격을 두고 설치되는 제1 및 제2 전극막; 상기 제1 전극막에 연결되어 고전위 미세 전류를 공급하는 고전위 미세전류 발생기; 상기 제2 전극막에 연결되어 펄스전압을 인가하는 팔스전압 발생기; 및 상기 고전위 미세전류값과의 최적화된 조합패턴을 형성하기 위하여 상기 펄스전압 발생기에서 인가되는 펄스전압을 제어하는 AI 펄스 제어수단을 포함하되, 상기 AI 펄스 제어수단은 미세전류와 펄스 전압의 조합패턴이 수소 분자의 공명 주파수와 동기화되어 분해 반응을 고효율로 유도할 수 있도록 제어하는 것을 특징으로 하는 AIC 기반 실시간 제어 수전해시스템 및 이를 이용한 고효율 수소생산방법을 제공한다.
Absstract of: EP4563523A1
The invention relates to a process (100) for the production of hydrogen from ammonia comprising the following steps:- providing a water feed stream to a water electrolyzer (101);- performing a water electrolysis (102) of the water feed stream in the electrolyzer, producing an oxygen product stream and an electrolysis hydrogen stream;- providing an ammonia feed stream to an ammonia cracking reactor (103);- providing an oxidant stream (105) and performing a combustion reaction (106) with said oxidant stream, thereby generating heat;- in the ammonia cracking reactor, performing an endothermic reaction of ammonia cracking (104) of the ammonia feed stream with said generated heat;characterized in that the oxidant stream comprises at least a portion of the oxygen product stream produced by the water electrolysis of the water feed stream.
Absstract of: EP4818113A1
The present invention relates to a method of regenerating a metal borate to the corresponding metal borohydride by mechanical processing of said metal borate with the addition of gaseous hydrogen. In addition, the present invention relates to a metal borohydride obtained, preferably directly obtained, by the method according to the invention.
Absstract of: EP4818367A1
The development of more cost-effective and efficient proton exchange membrane (PEM) water electrolysis cells requires the use of thinner membranes with extended lifetimes and reduced gas crossover. The inventive approach to address these challenges involves the incorporation of radical scavengers to mitigate radical-induced ionomer degradation, along with gas recombination catalysts to promote the conversion of crossover hydrogen and oxygen to water inside the PEM. Each of the two catalyst types has its distinct chemical reaction characteristics, to which the design of the composite membrane is tailored through rational considerations. In various embodiments of the present invention, the positioning effects of Ce0.5Zr0.5O2 and Pt interlayers in composite membranes for their respective roles in radical scavenging and gas recombination were investigated. Results reveal that placing a radical scavenger interlayer near the cathode notably reduces the ionomer degradation rate, compared to its placement near the anode, evidenced by a 61% ± 7% reduction in fluoride release rate. This is likely due to reactive oxygen species in the cell being predominantly generated at the cathode, which is closer to the radical scavenger interlayer in the former case. The Ce content in cerium-zirconium oxide was further optimized using an ex-situ Fenton test, with Ce0.25Zr0.75O2 demonstrating the highest radical scavenging activity.
Absstract of: EP4818960A1
0001 A green hydrogen production system uses an AI operator assistant. Electrolysis sensors collect operating conditions of an automated electrolysis system (102). An artificial intelligence (AI) electrolysis prediction engine (112) uses the operating conditions to model electrolysis. The AI electrolysis prediction engine (112) models electrolysis using a both first principles model (304) and machine learning models of one or more degradation factors, such as electrolyzer degradation or electro-osmatic drag. The AI electrolysis prediction engine (112) hybridizes the models to generate initial set point scenarios for the electrolysis process. An AI operator assistant receives process characteristics from the operator, which are used to select a set point scenario. An automation control processor (106) then controls electrolysis in accordance with the selected settings. An AI observer engine (114), an AI reasoning engine (116), and an AI error minimization engine (118) perform different aspects of a process to observe the process, determine deviations, and predict further optimization.
Absstract of: EP4818127A1
The present invention relates to an electrochemical system and method for water treatment and regeneration, with the simultaneous recovery of valuable by-products, particularly hydrogen. The system is designed to efficiently remove organic matter from wastewater streams while enabling the production and recovery of hydrogen and optionally other useful compounds.
Absstract of: EP4818365A1
0001 The invention relates to a method for operating an electrolysis plant (200) for producing hydrogen from water, wherein the electrolysis plant comprises electrolysis cells, the method comprising: Providing current operating parameter values (260) of plant operating parameters; Providing performance information (280), wherein the performance information comprises information about a performance of at least one component of the electrolysis plant; Determining, based on the performance information (280), a remaining service life (282) of the at least one component of the electrolysis plant; Determining operating setpoints (262) for the stack assemblies, based on: the current operating parameter values (260), the remaining service life of the at least one component of the electrolysis plant, and operating limits (284) of the stack assemblies or parts thereof, which exceed given respective operating limits; and Providing the operating setpoints (262) for operating the electrolysis plant.
Absstract of: EP4818363A1
0001 A multipowered electrolysis facility (2) having a power balance unit (6) that receives incoming power from a power source (4) and manages electron flow (8) from the power source (4); a first electrolysis unit (10) that receives the managed electron flow (8) from the power balance unit (6), and is individually attuned and cooperatively integrated to operate at a first power range of 10-500 MW; a second electrolysis unit (12) that receives the managed electron flow (8) from the power balance unit (6), and is individually attuned and cooperatively integrated to operate at a second power range of 10-500 MW; a cooling/heating unit (20) operatively connected to the electrolysis units (10, 12) to provide coolant/heated flow from the cooling/heating unit (20) to the electrolysis units (10, 12) for efficient electrolysis within the electrolysis units (10, 12); and a fluid purification unit (30) operatively connected to the electrolysis units (10, 12) to provide purified fluid flow from the purification unit (30) to the electrolysis units (10, 12) for efficient electrolysis within the electrolysis units (10, 12), whereby the electrolysis units (10, 12) produce hydrogen (40) and oxygen (42) that each may be made use of, stored, transported, discarded or otherwise.
Absstract of: KR20260145233A
본 발명의 일 실시예에 따른 전기화학적 수소 정제 및 압축 셀은, 애노드 측 가스 확산층; 캐소드 측 가스 확산층; 상기 애노드 측 가스 확산층과 상기 캐소드 측 가스 확산층 사이에 배치된 전해질막; 상기 애노드 측 가스 확산층과 상기 전해질막 사이에 배치된 애노드 측 촉매층; 및 상기 캐소드 측 가스 확산층과 상기 전해질막 사이에 배치된 캐소드 측 촉매층;을 포함하고, 상기 애노드 측 가스 확산층은 친수성 고분자 물질로 코팅될 수 있다. 따라서, 본 발명에 따르면, EHPC의 전류 밀도를 측정하였을 때 기존 문제였던 Membrane drying으로 의한 전류밀도 감소 문제를 해결할 수 있다.
Absstract of: EP4818385A1
0001 Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung eines leitfähigen Vliesstoffs bzw. einer Gasdiffusionsschicht für einen Elektrolyseur mit einer geringen plastischen Verformbarkeit und guten elastischen Eigenschaften sowie einen mit dem Verfahren erhältlichen leitfähigen Vliesstoff.
Absstract of: JP2026158176A
【課題】水電解の停止後のセル雰囲気を把握することができる。【解決手段】水電解システムであって、電解質膜、酸素極および水素極を含み、水電解により酸素極にて酸素を生成しつつ水素極にて水素を生成する水電解セルと、水電解セルの内部全体の雰囲気であるセル雰囲気の判定を行う判定部と、判定の結果を報知する報知部と、を備え、判定部は、水電解の停止後に水電解セルの電圧であるセル電圧が０Ｖに収束するとき、セル電圧が正電圧から０Ｖに収束した場合、停止後のセル雰囲気は水素雰囲気であると判定し、セル電圧が負電圧から０Ｖに収束した場合、停止後のセル雰囲気は酸素雰囲気であると判定する。【選択図】図１
Nº publicación: KR20260146256A 07/10/2026
Applicant:
KOREA RESEARCH INST OF CHEMICAL TECHNOLOGY [KR]
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Absstract of: KR20260146256A
본 발명은 퍼플루오로계 고분자를 포함하는 알칼라인 수전해용 다공성 분리막 및 이의 제조방법에 관한 것으로서, 구체적으로, (a) 폴리아릴렌술폰계 고분자 및 퍼플루오로술폰산계(PFSA) 고분자를 포함하는 고분자 바인더 및 세라믹 나노입자를 포함하는 다공성 구조층, (b) 상기 다공성 구조층이 코팅되는 폴리페닐렌설파이드(PPS) 다공성 지지체, 및 (c) 다공성 분리막의 표면에 형성된 폴리비닐알코올(PVA) 코팅층을 포함하는, 알칼라인 수전해용 다공성 분리막, 및 비용매 유도 상분리(NIPS) 공정을 이용한 이의 제조방법에 관한 것이다. 본 발명에 따르면, 본 발명의 알칼라인 수전해용 다공성 분리막은 폴리술폰계 고분자의 일부를 퍼플루오로술폰산(PFSA) 고분자로 대체함으로써, 세라믹 나노입자와 술폰산 고분자와의 상호 작용(수소결합) 등을 바탕으로 나노입자를 결착시켜 지르코니아 소실을 막고 과대 기공의 발생을 억제하고 균일한 기공 형성을 유도할 수 있다. 또한, 본 발명의 알칼라인 수전해용 다공성 분리막은 PFSA 고분자의 첨가를 통해, 점도를 감소시키고 친수성을 향상시킬 수 있고 이에 따라 표면 기공을 형성하게 하고, 다공층 내부 기공형성까지 영향을 미칠 수 있고, 다공층내 PSf(물흡수율 0.6%이하) 대비 PFSA(Nafion 20
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