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872
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Updated on
14/10/2025 [06:57:00]
Results 25 to 50 of 872
Absstract of: WO2024115781A1
The invention concerns a water sealed tank, comprising : a tank body and a heat conducting pipe. The tank body comprises a gas-liquid inlet, a water outlet and a gas outlet, wherein the gas outlet is close to or located on a top portion of the tank body and communicates with the tank body, the water outlet is close to or located on a bottom portion of the tank body, the gas-liquid inlet communicates with the tank body and is used for feeding a gas-water mixture into the tank body, and a gas separated from the gas-water mixture inside the tank body is discharged from the gas outlet. At least a part of the heat conducting pipe is located inside the tank body, and used for a liquid to flow through, so as to allow the heat conducting pipe to exchange heat with water inside the tank body and heat the water inside the tank body. A water electrolysis process for preparing hydrogen generates a lot of additional heat. By using the heat generated by electrolysis to heat the water inside the water sealed tank, the heat is effectively utilized without adding additional heating facilities in the water sealed tank to increase the water temperature, thereby reducing the waste of energy.
Absstract of: CN120303449A
The present invention relates to a symmetric separator membrane for electrolyzing alkaline water and having a uniform pore distribution.
Absstract of: CN120092333A
A method of recycling a spent catalyst coated membrane, wherein the spent catalyst coated membrane comprises: a membrane comprising a membrane ionomer; a first catalyst layer disposed on one side of the membrane, the first catalyst layer comprising a first catalyst and a first catalyst layer ionomer; and a second catalyst layer disposed on opposite sides of the membrane, the second catalyst layer comprising a second catalyst and a second catalyst layer ionomer. The method is configured to recover the first catalyst layer ionomer and the second catalyst layer ionomer in addition to the catalyst materials and the membrane ionomer.
Absstract of: EP4629404A1
A method and an apparatus to generate an electric voltage by contacting the inside of a closed mild carbon steel tube at a temperature between 250°C and 1200°C with di-Hydrogen obtained by electrolysis of pure water, said di-Hydrogen being at a pressure between 0 and 10 Bar gauge.
Absstract of: CN120303448A
The invention relates to a method for joining together stacks of elements, comprising the steps of: joining together sub-assemblies of elements individually; joining the subassemblies together by arranging a joint between each subassembly to form an element stack; a successive heating phase and a cooling phase are applied to the component stack, while at least one clamping action is applied to the component stack between two different heating and cooling phases.
Absstract of: CN120344719A
The invention relates to a bipolar plate for an electrolytic cell, the plate comprising, on at least one of its main faces: a first region extending circumferentially; a second region extending circumferentially so as to border the first region on the outside; a third region extending circumferentially so as to border the second region on the outside, each region being arranged on a perimeter of an associated major face. The invention also relates to a corresponding cell, an electrolytic cell stack and a method of assembly.
Absstract of: FR3160708A1
L’invention concerne un ensemble modulaire pour système d’électrolyse d’oxyde solide pour la production d’hydrogène. Il comportant au moins un module (1) comprenant au moins un empilement (2) de plaques d’oxydes solides positionné dans une enceinte chaude (3), des conduites d’amenée de fluides dans l’empilement (2), des conduites d’évacuation de fluides de l’empilement (2), et au moins un dispositif réchauffeur de fluide permettant au fluide d’atteindre une température compatible avec le fonctionnement de l’empilement (2). Le module (1) comprend une première partie amovible (10), équipée de premiers connecteurs (4) de conduites de fluides, qui comprend l’empilement (2) de plaques d’oxydes solides positionné dans ladite enceinte chaude (3), et une seconde partie fixe (11) équipée de seconds connecteurs (5) apte à s’assembler avec et à se désassembler desdits premiers connecteurs (4). La seconde partie fixe (11) comprenant un réseau (13) de distribution comportant lesdites conduites d’amenée (14) et d’évacuation (15) de fluides. Figure pour l’abrégé : Fig.1
Absstract of: FR3160823A1
L’invention concerne une boîte chaude (1) de stacks (2) d’électrolyse haute température réversible SOEC/SOFC, comportant une cuve (10) accueillant au moins deux stacks, une entrée (14) et une sortie (15) par laquelle des premier et second fluides (32) peuvent entrer et être évacués, ladite boîte chaude comportant en outre une première conduite d’amenée (6) d’un troisième fluide dans chacun desdites au moins deux stacks (2), qui s’étend depuis l’extérieur de ladite cuve jusqu’à un arbre central (60). La boîte chaude comprend des sous-conduites (61) de répartition dudit troisième fluide, qui s’étendent chacune depuis l’arbre central de distribution jusqu’à une entrée d’un stack, lesdits au moins deux stacks étant positionnés à égale distance dudit arbre central. La boîte chaude comprend également des canaux d’évacuation (62) qui s’étendent depuis le fond de chacun des stacks, jusqu’à une seconde conduite d’évacuation qui collecte un quatrième fluide et qui l’évacue hors de ladite cuve. Figure pour l’abrégé : Fig. 1
Absstract of: CN120225279A
The invention relates to a catalyst for ammonia decomposition and a preparation method thereof. More specifically, the present invention relates to a catalyst for ammonia decomposition, a method for preparing the same, and a method for ammonia decomposition using the same, the catalyst for ammonia decomposition comprising an MgAl2O4 spinel carrier and ruthenium, the ruthenium content being 0.1-5 wt% based on the total catalyst weight.
Absstract of: AU2025201947A1
In a process in which ammonia is cracked to form a hydrogen gas product and an offgas comprising nitrogen gas, residual hydrogen gas and residual ammonia gas, residual ammonia is recovered from the offgas from the hydrogen recovery process by partial condensation and phase separation, and hydrogen is recovered from the resultant ammonia-lean offgas by partial condensation and phase separation. The recovered ammonia may be recycled the cracking process and the recovered hydrogen may be recycled to the hydrogen recovery process to improve hydrogen recovery from the cracked gas. Overall hydrogen recovery from the ammonia may thereby be increased to over 99%. In a process in which ammonia is cracked to form a hydrogen gas product and an offgas comprising nitrogen gas, residual hydrogen gas and residual ammonia gas, residual ammonia is recovered from the offgas from the hydrogen recovery process by partial condensation and phase separation, and hydrogen is recovered from the resultant ammonia-lean offgas by partial condensation and phase separation. The recovered ammonia may be recycled the cracking process and the recovered hydrogen may be recycled to the hydrogen recovery process to improve hydrogen recovery from the cracked gas. Overall hydrogen recovery from the ammonia may thereby be increased to over 99%. ar a r n a p r o c e s s i n w h i c h a m m o n i a i s c r a c k e d t o f o r m a h y d r o g e n g a s p r o d u c t a n d a n o f f g a s c o m p r i s i n g n i t r o
Absstract of: US2025297392A1
A water electrolysis stack includes: a membrane electrode assembly including an electrolyte membrane and a plate-shaped current collector provided on one of both sides of the electrolyte membrane in the thickness direction thereof; a water introduction unit for introducing water from the outside; a water flow path member disposed so as to face the current collector and provided with a water flow path for guiding, along the surface direction of the current collector, the water introduced into the water introduction unit; and a pumping unit for pumping the water to the water introduction unit. The pumping unit continuously changes the pumping amount of the water, thereby pulsating the water flowing through the water flow path along the surface direction of the current collector.
Absstract of: AU2025200886A1
An electrolysis device includes: an electrolysis cell; a cathode supply flow path; an anode supply flow path; a cathode discharge flow path; an anode discharge flow path; a cathode flow rate regulator to adjust a flow rate A of a cathode supply fluid; an anode flow rate regulator to adjust a flow rate B of a anode supply fluid; a first flowmeter to measure a 5 flow rate C of a cathode discharge fluid; a second flowmeter to measure a flow rate D of a anode discharge fluid; and a control device to estimate a Faraday efficiency according to a relational expression for approximating the Faraday efficiency to a function including the C and D, and control the cathode flow rate regulator according to the estimated Faraday efficiency to control the A. 10 An electrolysis device includes: an electrolysis cell; a cathode supply flow path; an anode supply flow path; a cathode discharge flow path; an anode discharge flow path; a cathode flow rate regulator to adjust a flow rate A of a cathode supply fluid; an anode flow 5 rate regulator to adjust a flow rate B of a anode supply fluid; a first flowmeter to measure a flow rate C of a cathode discharge fluid; a second flowmeter to measure a flow rate D of a anode discharge fluid; and a control device to estimate a Faraday efficiency according to a relational expression for approximating the Faraday efficiency to a function including the C and D, and control the cathode flow rate regulator according to the estimated Faraday 10 efficiency to c
Absstract of: DE102024108733A1
Eine Anordnung (1) elektrochemischer Zellen (2), insbesondere Elektrolysezellen, umfasst eine mehrere, jeweils in einem Zylinder (15, 16) geführte Kolben (18) aufweisende hydraulische Kompressionsvorrichtung (7), welche zur Ausübung einer Druckkraft auf die gestapelten Zellen (2) ausgebildet ist. Die Zylinder (15, 16) sind durch mindestens eine zum Druckausgleich vorgesehene Querverbindung (12, 13) miteinander verbunden.
Absstract of: US2025309278A1
The present disclosure relates to a trifunctional catalyst, a method of the trifunctional catalyst, and a water splitting system using the trifunctional catalyst. The water splitting system according to embodiments of the present disclosure can be applied to energy storage and conversion by using characteristics of three types of catalytic reactions (oxygen evolution reaction (OER), oxygen reduction reaction (ORR), and hydrogen evolution reaction HER)) and can serve as a self-powered clean hydrogen production system at the same time.
Absstract of: WO2025201610A1
The invention relates to a method for producing syngas from carbonaceous feedstock comprising two or more different compositions of carbonaceous material (e.g. plastics, textiles, biomass, organic matter, natural gas, biogas, carbon dioxide, waste gases), the method comprising: Gasification of the waste feedstock by feeding the feedstock into a primary reaction zone, hereby generating a first output stream; Feeding the first output stream from the first reactor into a secondary reaction zone hereby generating a second output stream; Feeding the second output stream into a cleaning and conditioning reaction zone, hereby generating a third output stream Feeding the third output stream from the cleaning and conditioning reaction zone into a product synthesis reaction zone hereby generating a fourth output stream; Separating the fourth output stream from the product reaction into a fifth liquid crude product stream which is sent for further treatment (e.g., distillation) and at least a sixth and a seventh gas stream; At least part of the sixth gas stream is recycled to the product synthesis reaction zone; At least part of the seventh gas stream is looped back to the primary reaction zone for further conversion; Gasification parameters for the first and the second reaction zones are controlled to take into account the composition and amount of the recycled gas streams; and Providing a solid oxide electrolysis system (SOEC) to create a hydrogen and oxygen input to the process; Prov
Absstract of: WO2025201590A1
An arrangement (1) of electrochemical cells (2), in particular electrolysis cells, comprises a hydraulic compression device (7) which has a plurality of pistons (18) each guided within a cylinder (15, 16) and which is designed to exert a compressive force on the stacked cells (2). The cylinders (15, 16) are connected to one another by at least one transverse connection (12, 13) provided for pressure equalization.
Absstract of: WO2025202430A1
Various examples are directed to an electrolyzer system comprising an electrolyzer stack and a control circuit. The electrolyzer stack may comprise a first bipolar plate, a second bipolar plate parallel to the first bipolar plate and a third bipolar plate parallel to the second bipolar plate. The electrolyzer stack may further comprise a first switch electrically coupled between the first bipolar plate and the second bipolar plate to selectively electrically couple the first bipolar plate and the second bipolar plate, and a second switch electrically coupled between the first bipolar plate and the second bipolar plate to selectively electrically coupled the second bipolar plate and the third bipolar plate. The controller circuit may be configured to actuate the first switch to electrically couple the first bipolar plate and the second bipolar plate.
Absstract of: WO2025202210A1
The invention relates to a modular assembly for a solid oxide electrolysis system for producing hydrogen. The assembly comprises at least one module (1) comprising at least one stack (2) of solid oxide plates positioned in a heat chamber (3), pipes for supplying fluids into the stack (2), pipes for discharging fluids from the stack (2), and at least one fluid-heating device allowing the fluid to reach a temperature that is compatible with the operation of the stack (2). The module (1) comprises a first removable part (10) provided with first connectors (4) for fluid pipes, which part comprises the stack (2) of solid oxide plates positioned in the heat chamber (3), and a second fixed part (11) provided with second connectors (5) capable of being connected to and disconnected from the first connectors (4). The second fixed part (11) comprises a distribution network (13) comprising the fluid supply pipes (14) and fluid discharge pipes (15).
Absstract of: WO2025202201A1
The invention relates to a hot box (1) of reversible high-temperature SOEC/SOFC electrolysis stacks (2), comprising a tank (10) accommodating at least two stacks, an inlet (14) and an outlet (15) through which first and second fluids (32) can enter and be discharged, said hot box further comprising a first supply pipe (6) for supplying a third fluid to each of said at least two stacks (2), and which extends from outside said tank to a central shaft (60). The hot box comprises sub-pipes (61) for distributing said third fluid, these each extending from the central distribution shaft to an inlet of a stack, said at least two stacks being positioned at equal distances from said central shaft. The hot box also includes discharge channels (62) which extend from the bottom of each of the stacks, to a second discharge pipe that collects a fourth fluid and discharges it out of said tank.
Absstract of: US2025305162A1
An electrolytic unit includes (i) a plate having a first side and a second side opposite each other, the first side being an anode side, and the second side being a cathode side, (ii) an anode porous transport layer and a cathode porous transport layer respectively disposed at the first side and the second side, (iii) an exchange membrane, (iv) an anode catalyst layer and a cathode catalyst layer respectively disposed at two sides of the exchange membrane, (v) an anode gas diffusion electrode positioned on the anode catalyst layer, and (vi) a cathode gas diffusion electrode positioned on the cathode catalyst layer. The cathode porous transport layer, the plate, and the anode porous transport layer are formed as an integral mechanical portion, and the anode gas diffusion electrode, the anode catalyst layer, the exchange membrane, the cathode catalyst layer and the cathode gas diffusion electrode are formed as an integral electrochemical portion. Also provided is an electrolytic stack the includes the electrolytic unit described above. By way of the above, the assembly and maintenance of the electrolytic unit and the electrolytic stack are facilitated.
Absstract of: US2025304527A1
Ethanolamines, polyethylenimine and ammonia having a low molar share of deuterium, a process for making ethanolamines, polyethylenimine and ammonia based on non-fossil energy, the use of the molar share of deuterium in hydrogen and downstream compounds based on hydrogen for tracing the origin of preparation of hydrogen and downstream compounds based on hydrogen, and a process for tracing the origin of preparation of hydrogen and downstream compounds based on hydrogen by determining the molar share of deuterium in hydrogen and said downstream compounds based on hydrogen, applications of the polyethylenimine and the use of the polyethylenimine, and the use of the ethanolamines, preferably monoethanolamine and/or diethanolamine, or the polyethylenimine as liquid or solid CO2 absorbents in CO2 capturing processes.
Absstract of: US2025304438A1
The present invention relates to siloxane hydrogen carrier compounds and to a method for producing hydrogen from said siloxane hydrogen carrier compounds.
Absstract of: US2025304439A1
A hydrogen generation apparatus includes a first liquid providing apparatus and a controller. The first liquid providing apparatus provides a liquid containing at least water to a solid hydrogen carrier. The controller controls an amount of the liquid that the first liquid providing apparatus provides to the hydrogen carrier.
Absstract of: US2025303356A1
Disclosed are a system and method for purifying hydrogen, and a system for producing hydrogen by water electrolysis. The system for purifying hydrogen includes three dryers, and the three dryers share one regeneration cycle module. This significantly reduces a quantity of regeneration cycle modules, and therefore, manufacturing cost of the system is relatively low. In addition, a first gas-gas heat exchanger (4) is arranged in a regeneration cycle system, so that heat exchange can be performed between low-temperature regeneration hydrogen before regeneration and high-temperature regeneration tail gas after regeneration. In this way, residual heat of the high-temperature regeneration tail gas can be fully utilized, and power consumption of a subsequent heater and regeneration cooler can be significantly reduced. Therefore, energy consumption of the system is relatively low.
Nº publicación: US2025303383A1 02/10/2025
Applicant:
CANON KK [JP]
CANON KABUSHIKI KAISHA
Absstract of: US2025303383A1
A hydrogen generation apparatus applies a solid hydrogen carrier on a surface of a conveyance member by an application apparatus, and ejects a solution containing water onto the hydrogen carrier applied on the surface by an ejection apparatus. Then, hydrogen generated by a reaction between the hydrogen carrier and the solution on the surface is collected by a hydrogen collection apparatus. A byproduct generated by the reaction between the hydrogen carrier and the solution on the surface is collected by a byproduct collection apparatus. A hydrogen carrier regulated amount maintaining portion adjusts the replenishment amount of the hydrogen carrier from a replenishment container to a storage portion of the application apparatus to maintain the hydrogen carrier in the storage portion within a predetermined range.
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