Alerta

ELECTROLYSER FOR HYDROGEN PRODUCTION

Absstract of: WO2025045641A1

The present invention refers to an electrolyser (1) for the production of hydrogen from an alkaline electrolyte. The electrolyser (1) comprises a first header (2) and a second header (3) between which a plurality of elementary cells (4) and a plurality of bipolar plates (5) are stacked. Each bipolar plate (5) separates two adjacent elementary cells. The electrolyser (1) further comprises a plurality of clamping elements (20) that mechanically connect said headers (2, 3). Each of the elementary cells (4) comprises a frame (6) defining a chamber (6A), having an anodic section and a cathodic section, in which an anodic electrode (7) and a cathodic electrode (8) are at least in part housed. Each of the elementary cells (4) further comprise a separator element (10) that separates the anodic section from the cathodic section. According to the invention, each of the frames (6) comprises first through holes (61) and each of the bipolar plates (5) comprises second through holes (51), wherein each of said first through holes (61) of one frame (6) is mutually aligned with a corresponding first through holes (61) of each of the another frames (6) and with one of said second through holes (51) of each bipolar plate (5), wherein each one of said clamping means (20) extends through said through holes (51, 61) mutually aligned.

REDUCING COMPOSITIONS AND PROCESSES FOR PRODUCING THE SAME

Absstract of: US2025074800A1

The present disclosure describes a process for producing a reducing liquid comprising providing a liquid; providing a reducing gas and/or a metasilicate; and infusing the reducing gas and/or the metasilicate to the liquid, for the reducing gas and/or metasilicate to react with the liquid to produce a reducing liquid that has an oxidation reduction potential (ORP) value of about −100 mV or more negative. Further described is the process for preparing a reducing gas, which includes the steps of preparing an activator, introducing the activator into an electrolytic reactor, adding water, and applying a direct current to produce the reducing gas. Also described is a system for producing a reducing liquid.

POLYCYLOOLEFINIC POLYMERS AND ANION EXCHANGE MEMBRANES DERIVED THEREFROM

Absstract of: US2025075029A1

Embodiments in accordance with the present invention encompass a variety of polymers derived from polycyclic olefin monomers, such as hydrocarbon functionalized norbornenes. The polymers so formed function as ionomers and are suitable as anion exchange membrane for fabricating a variety of electrochemical devices, among others. More specifically, the ionomeric polymers used herein are derived from a variety of quaternized amino functionalized norbornene monomers and are lightly crosslinked (less than ten mol %). The membranes made therefrom exhibit very high ionic conductivity of up to 198 mS/cm at 80° C. This invention also relates to using an anion conducting solid polymer electrolyte as the ion conducting medium between the two electrodes and the ion conducting medium within the electrodes acting as the ionic conduit between electroactive material and electrolyte. The electrochemical devices made in accordance of this invention are useful as fuel cells, gas separators, and the like.

System and process for producing synthetic fuels without emitting carbon dioxide

Absstract of: US2025075139A1

A plant for the production of synthetic fuels, in particular jet fuel (kerosene), crude petrol and/or diesel, includes:a) a synthesis gas production unit for the production of a raw synthesis gas from methane, water and carbon dioxide, the synthesis gas production unit having at least one reaction section in which methane, water and carbon dioxide react to form the raw synthesis gas, and at least one heat generation section in which the heat necessary for the reaction of methane and carbon dioxide to produce the raw synthesis gas is generated by burning fuel to form flue gas,b) a separation unit for separating carbon dioxide from the raw synthesis gas produced in the synthesis gas production unit,c) a Fischer-Tropsch unit for the production of hydrocarbons by a Fischer-Tropsch process from the synthesis gas from which carbon dioxide has been separated in the separation unit, andd) a refining unit for refining the hydrocarbons produced in the Fischer-Tropsch unit into synthetic fuels,the plant further comprising e 1) a separation unit for separating carbon dioxide from the flue gas discharged from the synthesis gas production unit via the flue gas discharge line and/or e 2) a flue gas return line which is connected to the heat generation section of the synthesis gas production unit, wherein i) the carbon dioxide separated from flue gas or the flue gas itself via the flue gas return line and ii) the carbon dioxide separated from the raw synthesis gas are either fed directly to

PACKAGE STRUCTURE, PREPARATION METHOD FOR PACKAGE STRUCTURE, AND DISPLAY PANEL

Absstract of: US2025081802A1

A package structure, a preparation method for the package structure, and a display panel are provided. The package structure includes a first inorganic layer, a photocatalytic layer, and a second inorganic layer that are sequentially stacked, where the photocatalytic layer includes a photocatalytic material and a co-catalyst. The photocatalytic material and the co-catalyst are used cooperatively to catalyze the decomposition of water vapor, the photocatalytic material includes graphitic carbon nitride (g-C3N4) particles, and the co-catalyst includes perylene tetracarboxylic acid (PTA). The photocatalytic layer possesses high catalytic efficiency and excellent stability. In the case where cracks are generated at the package structure, water vapor invading through the cracks is decomposed and consumed through an oxidation-reduction reaction, and then decomposition products are respectively discharged.

GENERATION DEVICE

Absstract of: WO2025047881A1

The present invention efficiently generates appropriate amounts of helium 3 and oxygen 18.　This generation device (1) for generating helium 3 and oxygen 18 by reacting hydrogen and water comprises: a first electrode (3) composed of a first metal having a face-centered cubic lattice structure having crystal grain boundaries in which hydrogen is occluded; a second electrode (4) provided so as to face the first electrode (3); a chamber (2) for holding the first electrode (3) and the second electrode (4) so that an aqueous solution is present between the first electrode (3) and the second electrode (4); and a control unit (10) for vibrating the first electrode (3) and the second electrode (4) or vibrating the aqueous solution in a direction perpendicular to the orbital direction of a femto hydrogen molecule generated at the first electrode (3).

COUNTER FLOW ELECTROCHEMICAL REACTOR AND METHOD OF USE

Absstract of: WO2025048953A1

Herein discussed is a method of producing hydrogen or carbon monoxide or both comprising: (a) providing an electrochemical reactor comprising an anode, a cathode, and a mixed-conducting electrolyte between the anode and the cathode, (b) introducing a first fluid to the anode, wherein the first fluid provides a reducing atmosphere for the anode, and (c) introducing a second fluid to the cathode, wherein the second fluid provides a reducing atmosphere for the cathode, wherein the direction of the bulk flow of the first fluid is opposite that of the second fluid at every location along the length of the anode, and wherein the direction of the bulk flow of the first fluid changes in the reactor.

DUAL HYDROGEN SOURCE FOR HYDROGENATION REACTORS

Absstract of: WO2025049801A1

The systems and methods disclosed herein relate to facilities having hydrogenation reactors that may receive hydrogen from multiple sources. Systems and methods where a portion of the hydrogen is produced in a local power electrolysis system facility are also disclosed.

AN OXYGEN EVOLUTION REACTION ELECTROCATALYST AND METHODS FOR PREPARATION AND USE THEREOF

Absstract of: WO2025043295A1

An oxygen evolution reaction electrocatalyst and a method for preparing said oxygen evolution reaction electrocatalyst are disclosed. The method comprises the steps of contacting a porous zeolite with a solution containing a noble metal precursor to form a noble metal doped zeolite, pyrolyzing the noble metal doped zeolite to form nanocrystals comprising at least the noble metal and a second metal, said nanocrystals being confined within a layer of carbon-based material, wherein the second metal and the carbon-based material are derived from the pyrolyzed zeolite, and annealing said layer of carbon-based material confined nanocrystals to form isolated noble metal atoms singly dispersed within a metal oxide lattice of the second metal as an oxygen evolution reaction electrocatalyst.

Verfahren zum Betreiben einer Elektrolyseanlage, Prozessleitsystem

Absstract of: DE102023208424A1

Die Erfindung betrifft ein Verfahren zum Betreiben einer Elektrolyseanlage mit mindestens einem Stack, bei dem eine maximale Stackspannung (Umax) vorgegeben wird, die den Beginn einer ersten Phase (I) am Lebenszeitende des Stacks definiert, und mit Erreichen der maximalen Stackspannung (Umax) der Betriebsparameter Temperatur (T) bei konstanter Stromdichte (iDens) in dem Maße erhöht wird, dass die maximale Stackspannung (Umax) zumindest über die erste Phase (I) des Lebenszeitendes gehalten wird.Die Erfindung betrifft ferner ein Prozessleitsystem zur Ausführung von Schritten des erfindungsgemäßen Verfahrens.

ELECTRODE, MEMBRANE ELECTRODE ASSEMBLY, ELECTROCHEMICAL CELL, STACK, AND ELECTROLYZER

Absstract of: EP4516965A2

An electrode according to an embodiment including a support and a catalyst layer provided on the support and alternately stacked with sheet layers and gap layers. The catalyst layer is for electrolysis. The catalyst layer comprises a first metal which is one or more elements selected from the group consisting of Ir, Ru, Pt, Pd, Hf, V, Au, Ta, W, Nb, Zr, Mo, and Cr, and a second metal which is one or more elements selected from the group consisting of Ni, Co, Mn, Fe, Cu, Al, and Zn. The catalyst layer comprises a first region and a second region. The first metal in the first region is more oxidized than the first metal in the second region. A ratio of the second metal in the first region is greater than the ratio of the second metal in the second region.

A SEPARATOR FOR ALKALINE WATER ELECTROLYSIS

Absstract of: AU2023260588A1

A separator for alkaline electrolysis (1) comprising a porous support (10), a first porous layer (20b) provided on one side of the porous support and a second porous layer (30b) provided on the other side of the porous support, wherein the first and the second porous layer are partially impregnated into the porous support and each have an overlay thickness d1 and d2 respectively, said overlay thickness being defined as the part of each porous layer which is not impregnated into the porous support, characterized in that a) d1 is smaller than the overlay thickness of the second porous layer (d2), and b) d1 is at least 20 µm.

System and process for cracking ammonia

Absstract of: GB2633197A

Producing hydrogen by catalytically cracking ammonia 14 comprises: a main ammonia cracking reactor 4 with catalyst 8 and a fuel combustion zone 10 surrounding the reaction tubes 6 to generate a main hydrogen containing gas stream 11, and an auxiliary ammonia cracking reactor 12 to generate an auxiliary hydrogen containing gas stream 16. A portion 18 of the auxiliary hydrogen containing gas stream 16 is directed to the ammonia cracking catalyst 8 of the main reactor 4 and a portion 20 of this gas stream 16 is directed to the combustion zone 10 of the main ammonia cracking reactor 4.

WIND-POWERED HYDROGEN PLANT

Absstract of: EP4518077A1

The invention is about a wind-powered hydrogen plant (1) with a wind turbine (2) electrically coupled to an electrolysis system (3) with rows of electrolyser stacks (4), the wind turbine (2) comprising a generator (5) with a rotor (6) and a stator (7), the stator (7) being divided into winding segments (8) with an electrical insulation between individual winding segments (8), the number of which is a multiple of three, each group of three winding segments (8) forming a three-phase system connecting to one of individual rectifier circuits (9), and the electrolysis system (3) comprising individual DC/DC converters (10), each connected to a row of electrolyser stacks (4), wherein a DC output power of all individual rectifier circuits (9) is kept separated and the individual rectifier circuits (9) are each directly connected to one of the individual DC/DC converters (10). The invention also relates also to a method for converting wind energy into electrical energy for the operation of an electrolysis system (3).

METHOD AND PLANT FOR OBTAINING A HYDROGEN-CONTAINING PRODUCT USING AMMONIA

Absstract of: EP4516728A1

Die Erfindung betrifft Verfahren und eine Anlage (100) zur Herstellung eines Wasserstoff enthaltenden Produkts, wobei Ammoniak (2) in einem Ammoniakcracker (20), dem Wärme zugeführt wird, umgesetzt wird, wobei der Ammoniakcracker (20) ein Katalysatorbett mit mindestens zwei Katalysatorsegmenten (20a, 20b, 20c) aufweist, wobei in einem ersten Katalysatorsegment (20a) ein Teil des Ammoniaks (2) unter Verwendung eines ersten Katalysators bei einer ersten Mindesttemperatur umgesetzt wird und in einem zweiten Katalysatorsegment (20b), das stromabwärts des ersten Katalysatorsegments (20a) angeordnet ist, ein weiterer Teil des Ammoniaks (2) unter Verwendung eines zweiten Katalysators bei einer zweiten Mindesttemperatur umgesetzt wird.

STACK-TYPE ELECTROLYZER FOR OBTAINING HYDROGEN AND OXYGEN FROM THE ELECTROCATALYTIC BREAKDOWN OF A WATER-BASED ELECTROLYTE

Absstract of: EP4516964A1

The invention relates to a stack-type electrolyzer for obtaining hydrogen and oxygen, provided with lateral closure caps (2) and cells (3), each cell (3) comprising: a current collector anode plate (5a) and cathode plate (5b); one porous transport layer (7,8) comprising a conductive porous material that is a hard magnet, a semi-hard magnet or a soft magnet, a first catalysts for the anode plate (5a) and a second catalysts for the cathode (5b) plate; and a first arrangement of magnets (6), that are hard or semi-hard, attached to the current collector anode plate (5a), and/or to the current collector cathode plate (5b).

Process, reactor, and system for cracking ammonia

Absstract of: GB2633044A

A process for cracking ammonia (NH3) to produce hydrogen (H2), comprising feeding an ammonia gas input stream 4 to an ammonia cracking reactor 2 to crack the ammonia gas 4 to generate a hydrogen containing gas stream 8, wherein the cracking reactor 2 comprises one or more reaction tubes 6 containing ammonia cracking catalyst and one or more burners 12 for combusting a mixture of an oxidant-containing gas 18 and a fuel 10 in a fuel combustion zone 14 surrounding the one or more reaction tubes 6 to provide heat energy to support the cracking of ammonia, wherein the oxidant-containing gas 18 is pre-heated to at least 300°C prior to being fed to the one or more burners 12. Further defined are an ammonia cracking reactor for implementing the process, and a system comprising the reactor and a purification unit, wherein the purification unit is configured to generate a purified hydrogen stream and a waste gas stream which is directed to the combustion zone of the ammonia cracking reactor to at least partially fuel the reactor. The oxidant-containing gas may be air, oxygen-enriched air or oxygen, and may be pre-heated by a heat-exchanger within a flue duct of the reactor.

Green hydrogen production

Absstract of: GB2633015A

A method for isolating the portion of a chemical product of a chemical reaction produced using energy from renewable sources is described. The chemical reaction requires an energy input derived from renewable sources, non-renewable sources, or a combination of such sources. The method comprises obtaining a total chemical product of the chemical reaction; providing (i) the amount of energy input into the chemical reaction derived from renewable sources and (ii) the amount of chemical product produced by the chemical reaction; using (i) and (ii) to determine the portion of the total chemical product produced using energy from renewable sources. The portion of chemical product produced using energy from renewable sources is separated from the total chemical product. Also provided is an apparatus to produce at least one chemical product able to separate the portion of the chemical product produced using energy from renewable sources from the chemical product output.

A hydrogen buffer tank for improving facility integrity and produce high hydrogen

Absstract of: KR20250030279A

본 발명은 수전해 설비 장치로부터 생산된 수소로부터 산소 및 수분을 제거하는 고순도 수소를 생산하는 수소 저장탱크는, 수전해 설비 장치로부터 생산된 수소를 정화하는 수소 정화장치, 수소 저장탱크에 수소를 공급하는 수소 정화장치를 연결하는 수소 공급라인, 수소 공급라인의 단부에는 수소 저장탱크의 중심과는 벗어난 편심 위치로 배치되는 수소 공급라인(210)의 인입배관, 수소 저장탱크에 질소 퍼지라인을 통하여 질소(N2)를 유입시키는 질소 퍼지장치, 응축된 응축수를 수소 저장탱크의 하부에서 배수 밸브를 구비하는 배수 라인을 통하여 배출하는 배수구, 수소 저장탱크의 상부에는 가스 배출용 배출라인이 구비된 가스 배출구 및 수소 저장탱크 생산된 고순도 수소를 가압하여 저장하는 가압기 또는 연료전지 장치로 이송시키는 고순도 수소 이송라인을 포함하는 것을 특징으로 하는 수소 저장탱크에 관한 것이다.

MICROBIAL ELECTROLYSIS CELL SUPPRESSING METHANE GENERATION AND METHOD FOR PRODUCING HYDROGEN USING THE SAME

Absstract of: EP4512930A1

Disclosed are a microbial electrolysis cell suppressing methane generation and a method of producing hydrogen using the same, and more particularly microbial electrolysis cell technology, which prevents the growth of methanogens inside a reactor during operation of a microbial electrolysis cell by aerating a substrate for use in a microbial electrolysis cell with acetylene gas before supply of the substrate, thereby suppressing consumption of the hydrogen and substrate by methanogens, ultimately increasing the hydrogen yield and lifespan of the microbial electrolysis cell.

NEW ENERGY HYDROGEN PRODUCTION SYSTEM AND CONTROL METHOD THEREFOR

Absstract of: EP4516969A1

The present application provides a new energy hydrogen production system and a control method therefor. In the new energy hydrogen production system, a new energy input module supplies power to electrolytic cells by means of a power conversion module; and a control system of the new energy hydrogen production system is used for controlling, according to the power of the new energy input module, the power conversion module to work, such that among N electrolytic cells in an operation state, at least N-1 electrolytic cells work in a preset load range. The preset load range is a corresponding load range having the highest system efficiency in an electrolytic cell working range division result prestored in the control system, i.e., the present application can enable as many electrolytic cells as possible to respectively work in the preset load range having the highest system efficiency, and therefore, the system efficiency is improved and is optimized to the extent possible.

CARBON DIOXIDE CAPTURE AND CARBON RESOURCE UTILIZATION SYSTEM, FOR FUEL CELL, USING BOIL-OFF GAS GENERATED FROM LIQUEFIED NATURAL GAS

Absstract of: EP4517889A1

A carbon dioxide capture and carbon resource utilization system, for a fuel cell, using boil-off gas (BOG) generated from liquefied natural gas (LNG) of the present invention comprises: a liquefied natural gas storage which stores liquefied natural gas therein; a hydrocarbon reformer which generates a gas mixture containing hydrogen and carbon dioxide by reacting boil-off gas generated from the liquefied natural gas storage with water introduced from the outside; a fuel cell which receives hydrogen generated from the hydrocarbon reformer to generate electric power; a reactor which receives carbon dioxide generated from the hydrocarbon reformer to react the carbon dioxide with a basic alkali mixture solution, thereby capturing carbon dioxide, collects a reaction product containing the captured carbon dioxide, and separates a carbon dioxide reaction product and a waste solution from the reaction product; and a hydrogen generator which generates hydrogen by using the carbon dioxide reaction product separated from the reactor and supplies the generated hydrogen to the fuel cell.

SYSTEM FOR CAPTURING AND RECYCLING CARBON DIOXIDE AND PRODUCING HYDROGEN FOR CEMENT MANUFACTURING FACILITY

Absstract of: EP4516383A1

The present invention relates to a system for capturing and recycling carbon dioxide and producing hydrogen for a cement manufacturing facility. An embodiment of the present invention is characterized by comprising: a preheater that has a plurality of stages of cyclones arranged in series in a vertical direction and receives and preheats a cement raw material; a calciner that calcines the cement raw material preheated by the preheater; a kiln that fires the cement raw material calcined in the calciner; an exhaust line, connected to the cyclones of the preheater, that discharges exhaust gas discharged from each of the calciner and the kiln to the outside; a reactor, disposed on the exhaust line, that receives the exhaust gas and reacts the exhaust gas with a basic alkali mixed solution to capture carbon dioxide in the exhaust gas, collect a reactant including the captured carbon dioxide, and separate a carbon dioxide reactant and a waste solution from the reactant; and a hydrogen generator that generates hydrogen gas by receiving the carbon dioxide reactant separated from the reactor.

PHOTOCATALYTIC WATER SPLITTING WITH SEPARATE H2 AND O2 PRODUCTION

Absstract of: AU2023262052A1

A water splitting system includes a hydrogen production chamber including a hydrogen production port, an oxygen production chamber including an oxygen collection port, an ion exchange membrane coupling the hydrogen production chamber and the oxygen production chamber, and a photocatalytic structure including a first catalytic portion disposed in the hydrogen production chamber and a second catalytic portion disposed in the oxygen production chamber. The first catalytic portion is configured for production of hydrogen via the hydrogen production port. The second catalytic portion is configured for production of oxygen via the oxygen production port.

一种低压比的电解水制氢能量优化热泵系统及方法

Nº publicación: CN119554799A 04/03/2025

Applicant:

中国电力工程顾问集团西北电力设计院有限公司

Absstract of: CN119554799A

本发明属于电解水制氢技术领域，涉及一种低压比的电解水制氢能量优化热泵系统及方法。包括氢氧气液分离单元、热泵压缩机和膨胀机，氢氧气液分离单元通过氢气冷却器连接氢气干燥器；氢氧气液分离单元通过循环冷却水管路连接热泵吸热器，氢气冷却器通过制冷剂管路连接制冷机，所述氢气干燥器分别通过热水管路和蒸汽管路连接蒸汽发生器；所述热泵压缩机的出口通过热热泵工质管路依次连接蒸汽发生器和膨胀机的入口，所述膨胀机的出口通过冷热泵工质管路依次连接制冷机、热泵吸热器和热泵压缩机的入口；所述热热泵工质管路和冷热泵工质管路均连接回热器。本发明有利于降低热泵压缩机的压比，有利于丰富热泵工质的选择范围，提高系统的能源利用率。