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SYSTEMS AND METHODS TO MANAGE HYDROGEN CONCENTRATION WITHIN OXYGEN PRODUCT GAS IN AN ELECTROLYSIS SYSTEM

Resumen de: US20260035819A1

An electrolysis system includes an electrolyzer cell stack, a water tank, and a hydrogen management system. The electrolyzer cell stack uses water and electricity to produce a hydrogen product gas and an oxygen product gas including crossover hydrogen gas. The water tank is configured to receive a hydrogen tank stream including water and dissolved hydrogen gas and an oxygen tank stream including water and dissolved oxygen gas. In the water tank, the dissolved hydrogen gas and the dissolved oxygen gas exsolve from the water to form a gas mixture. The hydrogen management system is configured to control a concentration of the crossover hydrogen gas in at least a portion of the oxygen product gas to form a diluent for introduction into the water tank to decrease a hydrogen gas concentration in the gas mixture of the water tank.

HYDROGEN PRODUCTION SYSTEM

Resumen de: US20260035816A1

A hydrogen production system including: a first renewable power source, a first electrolyser, and a single stage power converter having an input side and an output side, wherein the input side is connected to the first renewable power source and the output side is connected to the first electrolyser.

SEALING LAYER, SEPARATOR PLATE AND ELECTROLYZER

Resumen de: US20260035815A1

The present invention relates to a sealing layer for use in an electrolyzer, a separator plate therefor and an electrolyzer. The sealing layer has at least one sealing bead, which, when installed in the stack, in plan view of the sealing layer runs around the flow field of the separator plate in a self-contained manner and has an initial bead height H0 determined before the first compression in the stack, wherein after an initial one-time compression of the sealing layer under nominal compression in the assembled, ready-to-use state of the stack and subsequent disassembly of the stack, the self-contained sealing bead has a bead height H where H≤0.3 H0.

CONTROL DEVICE FOR HYDROGEN PRODUCTION APPARATUS, HYDROGEN PRODUCTION FACILITY, METHOD FOR CONTROLLING HYDROGEN PRODUCTION APPARATUS, AND CONTROL PROGRAM FOR HYDROGEN PRODUCTION APPARATUS

Resumen de: US20260035817A1

This control device for a hydrogen production apparatus is intended to be used for a hydrogen production apparatus including an electrolyzer for electrolyzing water and a rectifier for supplying a direct-current electric power to the electrolyzer, the control device being provided with: a voltage control unit which is configured so as to adjust an output voltage output from the rectifier to the electrolyzer in such a manner that the output voltage of the rectifier is coincident with a set voltage; and a voltage set unit which is configured so as to set the set voltage to a first voltage that is larger than a rated voltage for the electrolyzer in at least a portion of the period during the start-up of the hydrogen production apparatus.

METHOD FOR PRODUCING HYDROGEN BY DISSOCIATING WATER THROUGH THERMOCHEMICAL REACTIONS AND DEVICE FOR CARRYING OUT SAME

Resumen de: US20260035241A1

The present invention relates to a method and device for producing hydrogen by dissociating the water molecule through thermochemical reactions, using a small amount of active material. The thermochemical reactions are induced by solar energy with a moderate concentration of up to 50 suns, which can be achieved through linear or parabolic concentrators.

CATALYST FOR CATALYTIC OXIDATIVE CRACKING OF HYDROGEN SULPHIDE WITH CONCURRENT HYDROGEN PRODUCTION

Resumen de: US20260035240A1

Disclosed is a catalyst suitable for the catalytic oxidative cracking of a H2S-containing gas stream. The catalyst comprises at least one or more active metals selected from the group consisting of iron, cobalt, and nickel, supported by a carrier comprising ceria and alumina. The active metal is preferably in the form of its sulphide. Also disclosed is a method for the production of hydrogen from a H2S-containing gas stream, comprising subjecting the gas stream to catalytic oxidative cracking so as to form H2 and S2, using a catalyst in accordance with any one of the composition claims.

HYDROGEN GENERATION SYSTEM

Resumen de: US20260035242A1

A hydrogen generation system with controlled water distribution is disclosed. The system comprises a reaction chamber containing a hydrogen-producing fuel, a liquid distribution mechanism, and a control system. The liquid distribution mechanism includes a rotating arm with liquid injection ports that move vertically through the fuel chamber. This allows for precise and efficient liquid delivery to unreacted fuel, optimizing hydrogen production. A proprietary fuel blend utilizes chemicals that store significant amounts of hydrogen in a solid-state form. A feature of the device is the arm's controlled vertical movement, achieved through a screw mechanism that adjusts the arm's height as it rotates, creating a spiral liquid distribution pattern. The control system regulates liquid injection rates, arm rotation speed, and vertical movement to optimize hydrogen production based on demand. The system can also operate at low pressures and be scaled to different sizes in a safer, more efficient, on-demand manner.

ホウ化水素とそのシートの製造方法

Resumen de: JP2026018134A

【課題】水素とホウ素からホウ化水素とそのシートを比較的簡単な方法で生成する製造方法を開発する。【解決手段】ホウ素微粒子２１と、大気圧プラズマ発生装置２７と、水素を含む作動気体を主たる要素とし、前記大気圧プラズマ発生装置２７の前記作動気体として少なくとも水素を大気圧プラズマ発生装置２７に供給し、大気圧プラズマを前記ホウ素微粒子２１に照射することにより、ホウ化水素７とそのシートであるホウ化水素シート８を生成することを特徴とするホウ化水素とそのシートの製造方法である。また、好ましくは、前記作動気体にホウ素微粒子を加えることが望ましい。更に好ましくは、前記容器内に撹拌機と皿を加え、前記皿内に入れた前記ホウ素微粒子に前記大気圧プラズマを照射するように配置することが望ましい。【選択図】図２

制御システム、管理システムおよび水素製造システム

Resumen de: JP2026017689A

【課題】各水電解装置の特性劣化を効果的に抑制する。【解決手段】制御システム５０は、複数の水電解装置を含む水電解システムを制御する。制御システム５０は、水電解システムにより使用されるべき電力を示す電力指令値が電力閾値を超過することを含む第１条件と、電力指令値の変化量が変化閾値を超過することを含む第２条件との少なくとも一方の成否に応じて、複数の水電解装置の各々の稼働または停止を決定する動作決定部６１と、電力指令値と動作決定部６１による決定結果とに応じて複数の水電解装置の各々に対する個別指令値を設定する指令値設定部６２とを具備する。【選択図】図７

METHOD OF OPERATING AN ELECTROLYSIS SYSTEM, CONTROL UNIT

Resumen de: WO2026027570A1

The invention relates to a method of operating an electrolysis system having a plurality of stacks, each of which comprises a plurality of individual cells in a stacked arrangement, where each individual cell has an anode and a cathode that are separated by a membrane. According to the invention, by defining a lower power threshold (Pmid,low) and an upper power threshold (Pmid,high), an average power range in which the ageing rate (AR) of the membranes reaches a maximum is defined, and, in order to reduce membrane ageing, the available electrical power (P) is divided between one or more stacks so as to avoid operation of any individual stack in the average power range. The invention further relates to a control unit for executing steps of the method according to the invention.

DEVICES FOR PROTECTION AGAINST CORROSION OF METAL PARTS WITHIN ALKALINE ELECTROLYZERS

Resumen de: EP4686772A1

The installation (10), comprises a piece of equipment delimiting an electrolyte storage or/and circulation volume (200), the piece of equipment comprising a metal wall (202) having an inner surface (208) facing the electrolyte storage or/and circulation volume (200).The piece of equipment further comprises:- a polymer adhesive protection layer (220) applied on the inner surface (208) of the metal wall (202) ;- a polymeric liner (222) positioned between the polymer adhesive protection layer (220) and the electrolyte storage or/and circulation volume (200), the polymeric liner (222) having an electrolyte contact surface (232) delimiting the electrolyte storage or/and circulation volume (200).

SYSTEM SUITABLE FOR PHOTOCATALYSIS AND METHOD TO PRODUCE SUCH SYSTEM

Resumen de: EP4686505A1

The present disclosure relates to a system suitable for photocatalysis comprising a semiconductor and selective contacts, the selective contacts being at least two, wherein the selective contacts are attached to the semiconductor; and the selective contacts comprise an electron transport layer and a hole transport layer. It also relates to a method to produce a system suitable for photocatalysis comprising the steps of: providing a sol-gel precursor of the semiconductor; dissolving the sol-gel precursor in a polar solvent; adding acid to the dissolution and stirring the dissolution to obtain a sol of the semiconductor; depositing the semiconductor in a suitable substrate; submitting the deposited semiconductor to a temperature of at least 300 °C for at least 1 hour to obtain a thin film of semiconductor; depositing on the semiconductor an electron transport layer and/or a hole transport layer. The present disclosure also relates to a method to obtain hydrogen from water or alcohol comprising the steps of contacting the system defined with water and/or alcohol, and irradiating the system as defined with light.

GREEN METHANOL PROCESS AND PLANT

Resumen de: EP4686717A1

A process or plant for the synthesis of methanol (MeOH). The process comprises:(a) passing a water-containing stream (3) through an electrolysis unit (4) to produce a cathode-side stream (5) comprising hydrogen (H₂) and an anode-side stream (6) comprising oxygen (O₂);(b) heat-exchanging said cathode-side stream (5) and optionally said anode-side stream (6) in one or more indirect heat exchanger(s) (7, 8, 32, 33) to obtain a cathode-side heat-exchanged stream (9) and optionally an anode-side heat-exchanged stream (10);(c) condensing said cathode-side heat-exchanged stream (9) to separate a liquid condensate product (11) and a syngas (12);said cathode-side stream (5) and/or said syngas (12) comprise carbon dioxide (CO₂) and optional carbon monoxide (CO) added through a separate stream (2);(d) compressing said syngas (12) and then feeding compressed syngas (13) to a MeOH synthesis loop (14) wherein catalytic conversion of said compressed syngas (13) into MeOH is carried out under methanol synthesis conditions, thus obtaining a crude methanol stream (15);(e) distilling said crude methanol stream (15) in one or more distillation column(s) (16, 17) to give a refined MeOH product (22);wherein said one or more indirect heat exchanger(s) (7, 8, 32, 33) provide a heat input to said one or more distillation column(s) (16, 17), and/or to said MeOH synthesis loop (14), and/or to said electrolysis unit (4).

THIN CELL FRAME WITH OPEN CHANNELS FOR A HYDROGEN ELECTROLYZER, STACK OF SUCH CELL FRAME, AND ELECTROLYZER COMPRISING SUCH STACK

Resumen de: EP4686773A1

A frame assembly (Fr.Ass) comprising a frame (TF) configured to be integrated in a stack of frames of an electrolyzer, the frame comprising a central opening (CentOp), a first through opening (In₂, Out₂), a top surface (Top) and a bottom surface (Bot) opposed to the top surface (Top), the frame further comprising an open channel (OpCh) on the bottom surface (Bot), the frame assembly comprising a bipolar plate (BP) formed from a polymer material, the bipolar plate being arranged so as to seal the open channel (OpChan), the bipolar plate being welded to the frame (TF).

水電解用電極、水電解セル、及び水電解装置

Resumen de: JP2026017267A

【課題】従来よりも高い耐久性を発揮する観点から有利な新規の水電解用電極を提供する。【解決手段】水電解用電極１は、導電性基材１０と、層状複水酸化物（ＬＤＨ）層２０とを備えている。ＬＤＨ層２０は、導電性基材１０上に設けられている。ＬＤＨ層２０の最小厚みｔ20は、５４０ｎｍ未満である。【選択図】図１

METODO DE PRODUCCION DE GAS Y APARATO DE PRODUCCION DE GAS

Resumen de: TW202503114A

Provided are a gas production method and a gas production apparatus that are capable of preventing the composition of generated gas in a gas phase part of each circulation tank from reaching a flammability limit to reduce a bad effect of a remaining dissolved gas in electrolyte on gas purity even when an electrolyte exchange is carried out between an anode side circulation tank and a cathode side circulation tank. In the gas production method of producing oxygen gas and hydrogen gas by electrolyzing electrolyte which is alkaline water by means of an electrolysis vessel, the electrolyte is depressurized when an electrolyte on the anode side and an electrolyte on the cathode side are exchanged.

水電解用電極、水電解セル、及び水電解装置

Resumen de: JP2026017268A

【課題】従来よりも高い耐久性を発揮する観点から有利な新規の水電解用電極を提供する。【解決手段】水電解用電極１は、導電性基材１０と、層状複水酸化物（ＬＤＨ）層２０とを備えている。ＬＤＨ層２０は、導電性基材１０上に設けられている。ＬＤＨ層２０のクラック頻度は、０．１８個／μｍ未満である。ＬＤＨ層２０のクラック頻度は、導電性基材１０とＬＤＨ層２０との間の単位界面長さ当たりのＬＤＨ層２０におけるクラックの個数である。【選択図】図１

膜・触媒層接合体、水電解装置、および膜・触媒層接合体の製造方法

Resumen de: JP2026017255A

【課題】触媒層における気液の入れ替わりを円滑化できる技術を提供する。【解決手段】膜・触媒層接合体は、電解質膜と、電解質膜の表面に形成された触媒層と、を備える。触媒層は、第１アイオノマー８３および第２アイオノマー８４を含む。第２アイオノマー８４のＥＷ値は、第１アイオノマー８３のＥＷ値よりも高い。このようにすれば、触媒層中に、第１アイオノマー８３により比較的親水性が高くなる第１領域Ａ１と、第２アイオノマー８４により比較的親水性が低くなる第２領域Ａ２とが形成される。これにより、触媒層において、気液の入れ替わりを円滑に行うことができる。【選択図】図４

アルカリ水電解セル、複極式アルカリ水電解ユニット、及びアルカリ水電解槽

Resumen de: JP2026017230A

【課題】水素発生の起動と停止を繰り返し行う場合でも、隔膜への触媒付着を抑え、長期にわたって安定運転可能なアルカリ水電解セルを提供する。【解決手段】隔膜１と、該隔膜１を隔てて配置された酸素発生陽極２及び水素発生陰極３とを具え、酸素発生陽極２と水素発生陰極３の少なくともいずれか一方の電極が、導電性基材２ａ，３ａと、該導電性基材の表面上に配置された触媒層２ｂ，２ｃ，３ｂ，３ｃとを含み、前記隔膜１と向かい合わせる面から蛍光Ｘ線分析法を用いて解析した触媒層２ｃ，３ｃの金属原子濃度／導電性基材２ａ，３ａの金属原子濃度比Ｒ１と、隔膜１と反対の面から蛍光Ｘ線分析法を用いて解析した触媒層２ｂ，３ｂの金属原子濃度／導電性基材２ａ，３ａの金属原子濃度比Ｒ２との比（Ｒ１／Ｒ２）の値が０以上１未満であることを特徴とする、アルカリ水電解セル１０である。【選択図】図１

THIN CELL FRAME FOR A HYDROGEN ELECTROLYZER, STACK OF SUCH CELL FRAME, AND ELECTROLYZER COMPRISING SUCH STACK

Resumen de: EP4686774A1

A frame assembly (Fr.Ass) comprising a frame (TF) configured to be integrated in a stack of frames of an electrolyzer, the frame comprising a central opening (CentOp), a first through opening (In₂ , Out₂ ), a top surface (Top) and a bottom surface (Bot) opposed to the top surface (Top), the frame further comprising an open channel (OpCh) on the bottom surface (Bot), the frame assembly comprising a bipolar plate (BP) formed from a polymer material, the bipolar plate being arranged so as to seal the open channel (OpChan), the bipolar plate being welded to the frame (TF).

一种振动式硅碳棒解水剂制氢装置

Resumen de: CN121446434A

一种振动式硅碳棒解水剂制氢装置，属于制氢技术领域，主要由料箱、解水剂料、供料管、电动阀、外壳、制氢管、硅碳棒、水箱、供水管、回收罐、蒸汽发生器、电热圈、蒸汽管、振动电机、机架、弹簧、氢气出口、等组成，其特征是：料箱内装解水剂料，供料管上接料箱中部串连两个电动阀下接制氢管左端进料口，制氢管左端设有进料口和氢气出口右端设有出料口，外壳内通过制氢管硅碳棒放在制氢管下面，振动电机固定在机架上。工作过程是：解水剂料由料箱内经电动阀进入制氢管内，受热后与水蒸汽接触发生化学反应产生氢。优点有：1成本低于现有工业制氢；2无污染；3原料充足易得。

水反応性アルミニウム組成物を製造するための室温固体金属合金

Resumen de: CN120677016A

Provided herein are water-reactive aluminum compositions comprising aluminum or an alloy thereof and an activating metal alloy (e.g., a non-eutectic activating metal alloy comprising bismuth, tin, indium, and gallium; or an activating metal alloy comprising bismuth, tin and indium). Some water-reactive aluminum compositions provided herein are free of gallium. Also provided herein are methods of activating aluminum to provide a water-reactive aluminum composition. Also provided are fuel mixtures comprising the water-reactive aluminum composition described herein and a water-reactive aluminum composition having an increased gallium content; and methods of providing hydrogen and/or steam using the water-reactive aluminum compositions described herein.

一种用于制备碱性水电解复合隔膜的方法及复合隔膜

Resumen de: CN121451240A

本申请公开了一种用于制备碱性水电解复合隔膜的方法及复合隔膜，属于隔膜制备技术领域，所述制备碱性水电解复合隔膜方法中，包括步骤1)：将聚苯硫醚编织网浸渍于乳白色铸膜液，浸渍预定第一时间后取出，生成浸渍后的聚苯硫醚编织网；步骤2)：采用预设间距的刮刀刮涂浸渍后的聚苯硫醚编织网，生成液体湿膜；步骤3)：将液体湿膜放入第一凝固浴中，在第一凝固条件下进行凝固，生成成形的白色薄膜；步骤4)：将成形的白色薄膜放入第二凝固浴中，在第二凝固条件下进行凝固，生成碱性水电解复合隔膜。通过调节有机凝固浴的组分实现对隔膜内部微观结构的调控，且制备的复合隔膜具有面电阻低及机械性能优异的特点。

电解槽电池单元、制备方法及可再生能源制氢设备

Resumen de: DE102025128171A1

Die vorliegende Offenbarung betrifft eine Elektrolyseur-Batteriezelle, ein Herstellungsverfahren und eine Vorrichtung zum Erzeugen von Wasserstoffgas aus erneuerbarer Energie. Die Elektrolyseur-Batteriezelle umfasst eine Membranbaugruppe, die im zentralen Bereich der Elektrolyseur-Batteriezelle angeordnet ist; eine Anodenkomponente und eine Kathodenkomponente, die jeweils auf beiden Seiten der Membranbaugruppe angeordnet sind; wobei die Anodenkomponente eine Anodentransportstruktur umfasst, um Fluid innerhalb des Elektrolyseurs bei einer ersten Geschwindigkeit in der Anodentransportstruktur zu transportieren; wobei die Kathodenkomponente eine Kathodentransportstruktur umfasst, um Fluid innerhalb des Elektrolyseurs bei einer zweiten Geschwindigkeit in der Kathodentransportstruktur zu transportieren; wobei die Kathodentransportstruktur sich von der Anodentransportstruktur unterscheidet und der Durchschnittswert der zweiten Geschwindigkeit größer als der Durchschnittswert der ersten Geschwindigkeit ist. Die Lösung der vorliegenden Offenbarung verbessert die Transportrate des Fluids, unterstützt die Entladung der Gasprodukte auf der Kathodenseite und verhindert, dass die Gasprodukte auf der Kathodenseite die Katalysatorschicht bedecken, sodass die Reaktanten schnell die Elektrodenoberfläche erreichen können, wodurch die Reaktionsrate des elektrolysierten Wassers gewährleistet und die Leistung der Elektrolyseur-Batterie verbessert wird.

一种低铂-镍铁氮复合自支撑电极及其应用

Nº publicación: CN121451234A 03/02/2026

Solicitante:

浙江工业大学

Resumen de: CN121451234A

本发明提供一种低铂‑镍铁氮复合自支撑电极，所述的低铂‑镍铁氮复合自支撑电极通过如下方法制备：以铂片作为阳极，镍片作为阴极，阳极与阴极间距为2~3 cm，以含有三氯化铁和三聚氰胺的盐酸水溶液为电解液，在恒定电压10~30 V、温度40~60 ℃的条件下，进行电化学阳极氧化和阴极电沉积耦合反应1~5 h，在阴极沉积得到所述低铂‑镍铁氮复合自支撑电极；该方法在控制低铂沉积量的同时，复合了镍、铁和氮元素，增加了自支撑催化剂的双功能性，避免了催化剂的团聚或脱落的问题，增强了催化活性，在工业化应用方面具有广阔的应用前景。