Alerta

METHOD OF OPERATING A SOLID OXIDE ELECTROLYSIS CELL STACK AND SYSTEM FOR CARRYING OUT THE METHOD

Absstract of: WO2025087866A1

The invention relates to a method of operating a solid oxide electrolysis cell (SOEC) stack for producing hydrogen, and a system for carrying out the method, said SOEC stack comprising at least one solid oxide electrolysis cell (SOEC), said at least one SOEC comprising an electrolyte layer interposed between a fuel-side and an oxy-side, the method comprising transient operation, in which the transient operation comprises: - operating the SOEC stack under open-circuit voltage (OCV); - providing a feed gas comprising ammonia; - supplying at least a portion of said feed gas comprising ammonia to a guard bed reactor, said guard bed reactor comprising a catalyst active in the cracking of ammonia to nitrogen and hydrogen; and withdrawing from said guard bed reactor a forming gas comprising nitrogen and hydrogen; - supplying at least a portion of the forming gas comprising nitrogen and hydrogen to the fuel-side of the at least one of the solid oxide electrolysis cells (SOECs) of the SOEC stack; and withdrawing from said at least one of the SOECs of the SOEC stack, a first fuel-side exit gas.

SOLID OXIDE ELECTROLYSIS CELL AND USE OF SAME

Absstract of: EP4800161A1

Provided is a technique for suppressing occurrence of cracking in a solid electrolyte layer. A solid oxide electrolysis cell includes an air electrode containing a complex oxide having a perovskite structure, a fuel electrode, and a solid electrolyte layer disposed between the air electrode and the fuel electrode. In an interface region of the fuel electrode, which region extends 5 µm from the interface between the fuel electrode and the solid electrolyte layer, the Al content is 1 ppm or greater and 100 ppm or less.

FUEL CRACKER FOR PRODUCING A FUEL WITH STABLE COMBUSTION PROPERTIES FROM AMMONIA

Absstract of: EP4545476A1

Process (2) for the production of an enhanced fuel gas (4) containing at least hydrogen gas from a fuel stream, in particular from an ammonia fuel stream (6). Said process comprises the following steps:- providing the fuel stream (6) (S100);- providing a condensable medium (8), preferably water steam (8), to a cracker unit (10);- at least one step of performing an endothermic cracking reaction of the fuel stream (6) in the cracker unit comprising at least one catalyst suitable for cracking said fuelstream (6), so as to produce an at least partially cracked fuel stream as said enhanced fuel gas (4) (S300); and- condensing at least partially said condensable medium (8) to provide said heat for the endothermic cracking reaction of the fuel stream (6).

IMPROVED ELECTROCHEMICAL DEVICE

Absstract of: WO2025088418A1

Electrochemical device (1), preferably of the electrolyser type for hydrogen production, characterised by comprising: - at least one support frame (2), with a substantially laminar development, which is provided with at least one seat (3) for an electrochemical module (10), said support frame (2) comprising a first face (12') and a second face (12") which are opposite to each other, at least one electrochemical module (10) which is mounted in said at least one seat (3) and which comprises a separation membrane interposed between two electrodes, respectively between an anode and a cathode, at least one bipolar plate (20) for applying/transferring electrical energy to the electrodes of said at least one electrochemical module (10), said bipolar plate (20) comprising a first surface (21') and a second surface (21") which are opposite to each other, said bipolar plate (20) being superimposed on said support frame (2) and being configured so that the first surface (21') of said bipolar plate (20) rests, at least in part, on a first face (12') of said support frame (2).

HYDROGEN PRODUCTION SYSTEM AND METHOD FOR OPERATING HYDROGEN PRODUCTION SYSTEM

Absstract of: EP4800162A2

The hydrogen production system comprises a solid oxide electrolysis cell (SOEC) that electrolyzes steam, a steam discharge line through which the steam discharged from the hydrogen electrode of the SOEC passes, a main heat exchanger that generates the steam by heating supply water through heat exchange between the supply water and the steam passing through the steam discharge line, a combustor that combusts a part of hydrogen contained in steam discharged from a hydrogen electrode, a superheater that exchanges heat between the steam generated in the main heat exchanger and the combustion gas generated in the combustor, a gas discharge line through which an exhaust gas discharged from an oxygen electrode of the SOEC passes, a steam bleeding line that allows the steam discharge line and the combustor to communicate with each other, and an exhaust gas bleeding line that allows the gas discharge line and the combustor to communicate with each other.

ELECTRODE PRODUCTION METHOD AND ELECTRODE THEREOF

Absstract of: EP4800782A1

The present invention relates to a method for the preparation of a cathode for alkaline water electrolysis of water particularly useful in the reaction of hydrogen evolution comprising nickel, iron and/or cobalt oxide and a noble metal based on the self-combustion of a precursor mixture deposited or coated on the surface of an electrode carrier. The invention also relates to an electrode obtainable according to said method and to its use as cathode in water electrolysis, in particular in alkaline water electrolysis.

Hydrogen Production Facility and Control System Based on High-Temperature Gas

Absstract of: KR20260132167A

본 발명의 일측면에 따르면, 헬륨과 공급수가 열교환되어 증기가 생성되도록 내부로 헬륨과 공급수가 유입되는 열교환장치; 상기 열교환장치로 유입되는 헬륨을 가열하기 위한 헬륨가열장치; 수소가 생성되도록 상기 열교환장치에서 생성된 증기가 유입되는 제1 캐소드와 제1 애노드를 포함하는 고체산화물 수전해 전지스택를 포함하는 수소생성부; 전기가 생성되도록 상기 열교환장치에서 생성된 증기가 유입되는 제2 애노드와 제2 캐소드를 포함하는 고체산화물 연료 전지스택를 포함하는 전기생성부; 상기 열교환장치, 상기 헬륨가열장치, 상기 수소생성부 및 상기 전기생성부에 연결되어 헬륨, 공급수, 증기 및 수소가 유동되는 통로를 제공하는 플로우채널; 상기 플로우채널에서 헬륨, 공급수, 증기 및 수소의 유동을 조절하기 위해 선택적으로 개폐되는 복수 개의 밸브; 상기 제1 캐소드 및 상기 제2 애노드의 압력을 감지하기 위한 복수 개의 압력센서; 및 복수 개의 압력센서에서 감지된 압력에 기초하여 상기 복수 개의 밸브를 제어하는 제어기를 포함하고, 상기 제어기는 상기 제1 캐소드의 압력이 미리 설정된 제1 캐소드기준압력 이상일 경우, 상기 제1 캐소드로 유입되는 증기가 감소되도록 복수 개의 밸브를 제어하고, �

PLANT AND METHOD FOR CONVERTING CO2 TO METHANOL

Absstract of: EP4800000A1

The invention relates to an methanol plant comprising: a CO₂-rich feed, a hydrogen-rich feed, a boiler feed water stream, a CO₂-electrolysis section arranged to electrolyse at least a portion of the CO₂-rich feed to output a mixed stream, a heat exchange section arranged to heat exchange at least a portion of the first mixed stream so as to output a cooled mixed stream and a steam stream, a methanol synthesis loop arranged to receive at least a portion of the cooled mixed stream and at least a portion of the hydrogen-rich feed and to output a raw methanol stream, a purge gas stream, and a flash gas stream, and a methanol upgrading section, wherein the steam stream is arranged to provide heat energy for one or more components of the methanol upgrading section. At least a portion of the purge gas stream is arranged to be recycled to the CO₂-rich feed, and/or at least a portion of the flash gas stream is arranged to be recycled to at least one of: the mixed stream and the cooled mixed stream. The invention also relates to a method for converting CO₂ to methanol.

Catalyst particles for hydrogen generation method for preparing the same and electrode comprising the same

Absstract of: KR20260132301A

본 발명은 수소발생용 촉매입자, 이의 제조방법, 및 이를 포함하는 전극에 관한 것으로, 보다 구체적으로 내구성 및 전기화학적 특성이 우수한 수소발생용 촉매입자, 이의 제조방법, 및 이를 포함하는 전극에 관한 것이다.

METHOD OF OPERATING AN ELECTROLYSIS SYSTEM, CONTROL UNIT TO CONTROL AN ELECTROLYSIS SYSTEM, ELECTROLYSIS SYSTEM WITH SUCH A CONTROL UNIT COMPUTER PROGRAM PRODUCT AND A COMPUTER-READABLE STORAGE MEDIUM

Absstract of: EP4800157A1

0001 Method of operating an electrolysis system (2) wherein the method comprising the step of: (S100) providing a control signal (S5) to a product valve (18b) on the oxygen-side (V) of the electrolysis system (2) to keep the product valve (18b) open in order to buffer oxygen provided by the electrolysis system (2) in a buffer tank (14b) on the oxygen-side (V) in normal operation of the electrolysis system (2).

A PRESSURIZED ALKALINE ELECTROLYSER STACK

Absstract of: EP4800158A1

The various embodiments of the present invention disclose a pressurized alkaline electrolyser stack, comprising: a stack core (100a) comprising a plurality of electrolysis cells (200), wherein each electrolysis cell (200) comprises an anode chamber comprising an anode, a cathode chamber comprising a cathode, a diaphragm (206) separating the anode chamber and the cathode chamber, at least one cell frame (201) and at least one gasket (202). The stack core (100a) is configured to have a first stack core length L₁ and a first gasket stress σ₁ at a first design temperature T₁ and a second stack core length L₂ and a second gasket stress σ₂ at a second design temperature T₂. The first design temperature T₁ is at least 80 degrees Celsius and the second design temperature T₂ is less than 30 degrees Celsius. A stack core length difference dL = L₁-L₂ is between 0 to 20 millimeters, and a gasket stress difference dσ =σ₁-σ₂ is between 0 to 20 MPa.

HYDROGEN PRODUCTION SYSTEM, HYDROGEN PRODUCTION METHOD, AND PROGRAM

Absstract of: EP4800867A1

0001 A hydrogen production system (1) of the present disclosure includes a plurality of electrolyzers (2) which produce hydrogen by electrolyzing a raw material, a plurality of power converters (3) which convert three-phase AC power into DC power and supply the DC power to the plurality of electrolyzers, and a control device (4) which controls the plurality of power converters. Each electrolyzer is connected to a different one of the power converters. The control device is configured to individually control a current or a voltage supplied from the plurality of power converters to each electrolyzer by individually controlling the plurality of power converters. The control device is configured to control the current or the voltage supplied from the power converter to a measured electrolyzer (2S) based on a detection value detected by at least one detection unit of an inlet gas state detection unit (141), an outlet gas state detection unit (142), and a power supply physical quantity detection unit (143).

一次燃料及び煙道ガスＣＯ２捕捉を伴うＮＨ３分解プロセス

Absstract of: EP4796494A1

Process of ammonia cracking, comprising the following steps :- providing an ammonia feed stream,- passing at least part of the ammonia feed stream, or a gas derived from the ammonia feed stream, to a cracker unit for performing an ammonia cracking reaction,- providing a primary fuel and performing a combustion of said primary fuel thus generating heat and a flue gas comprising carbon dioxide,- providing heat from said combustion to the ammonia cracking reaction,- passing at least a portion of the flue gas to a carbon dioxide recovery unit for recovering a carbon dioxide enriched stream from the flue gas,wherein a cracked gas comprising hydrogen, nitrogen and optionally unconverted ammonia is obtained through the ammonia cracking reaction.

MARINE PLATFORM FOR PRODUCING, STORING, AND TRANSFERRING MARINE GREEN HYDROGEN

Absstract of: EP4799916A2

The present invention relates to an apparatus and method for producing, storing, and transferring hydrogen. According to the present invention, in order to address the problems of conventional systems and methods for producing, storing, and transferring marine green hydrogen, which are configured with a fixed structure in a small-scale offshore wind power generator on a coast or in a shallow sea area with a shallow depth of water, and thus, have low efficiency due to the difficulty in mass production of hydrogen, and a large storage space is occupied when the produced hydrogen is converted into a compressed gas form, and when the produced hydrogen is converted into ammonia, additional energy is required to extract the hydrogen again and there is a risk of environmental pollution and casualty in the event of an outflow accident, provided is a marine platform for producing, storing, and transferring marine green hydrogen, which is configured such that marine green hydrogen is produced through a floating marine structure configured to produce marine green hydrogen using electricity produced using renewable energy from the ocean, and simultaneously, the produced marine green hydrogen is stored, transferred, and offloaded through a single offshore platform (FPSO), thereby being possible to easily construct a large-scale production facility capable of producing, storing, and transferring marine green hydrogen without greenhouse gas emission on the basis of eco-friendly energy.

用于催化性污染治理的氢气还原剂

Absstract of: US2020032688A1

0001 Systems for abatement of pollutants in an exhaust gas stream of an internal combustion engine including a hydrogen injection article configured to introduce hydrogen upstream of a catalytic article are effective for the abatement of carbon monoxide and/or hydrocarbons and/or nitrogen oxides. The introduction of hydrogen may be intermittent and/or during a cold-start period.

一种制氢系统和电解槽压紧力调节方法

Absstract of: CN122669406A

本发明公开了一种制氢系统和电解槽压紧力调节方法，属于电解制氢设备控制技术领域，其中制氢系统包括电解槽与压紧力调节装置，电解槽含相对设置的两块压紧端板及堆叠于其间的电解单元组，至少一块端板外侧布设传感器阵列，压紧力调节装置包含控制器与多组独立执行机构，对应作用于端板各分区。本发明通过分区分布式感知架构，结合压力映射与温度补偿模型获取区域真实压紧力，基于区域空间距离与实时温差构建双耦合解耦机制修正压力偏差，驱动执行机构分区独立调控，实现端板压紧力高精度闭环控制，解决高温测量失真、刚性端板应力耦合问题，提升密封可靠性与压紧力长期稳定性，延长保压周期并降低运维成本。

多孔质碳片和水电解装置

Absstract of: WO2025182758A1

The purpose of the present invention is to provide a low-cost porous carbon sheet that has a high compression deformation rate when constituting a water electrolysis cell, does not have the problems of penetration and short-circuiting, and has excellent electrical conductivity. The porous carbon sheet is a sheet-shaped structure having a porous structure in which carbon fibers are bound by a binder. The porous carbon sheet has a thickness d0 under a pressure of 0.15 MPa of 1.8-3.0 mm, a thickness d1 under a pressure of 1.0 MPa of 85% or more of the thickness d0 under the pressure of 0.15 MPa, and a thickness d2 under a pressure of 4.5 MPa of 75% or less of the thickness d0 under the pressure of 0.15 MPa.

SYSTEM AND METHOD FOR MAKING GREEN HYDROGEN

Absstract of: WO2025160516A1

A system and method of making hydrogen from water. A reaction vessel is provided with an outer shell, a central shaft, and concentric inner tubes separated by annular spaces. Water is delivered to the annular spaces by a water pump through an inlet defined in the reaction vessel. The water courses along a tortuous flow path. That path begins at an inner annular space around a central shaft. It ends at an outer annular space. The water emerges from the reaction vessel through an outlet associated with a manifold. A vibratory stimulus is applied to the reaction vessel and water. Water molecules are dissociated into hydrogen molecules and oxygen atoms. These reaction products are delivered through the manifold along an effluent flow path to a receiving pressure vessel before deployment to a sub-assembly for harnessing clean energy.

一种金属元素掺杂氧化钌及其制备方法与应用

Absstract of: CN122667649A

本发明属于电催化技术领域，具体涉及一种金属元素掺杂氧化钌及其制备方法与应用。制备方法包括以下步骤：将可溶性钌源、可溶性金属盐、盐模板、柠檬酸、葡萄糖和尿素加入水中混匀，制得前驱体溶液；盐模板由NaCl和LiCl组成；将前驱体溶液中的水蒸发去除，制得干凝胶；将干凝胶进行加热氧化处理，随后冷却至室温，制得产物粉末；将产物粉末分别进行酸洗处理、离心分离、去离子水洗涤和干燥处理，即得金属元素掺杂氧化钌。本发明借助异质元素掺杂调控材料微观结构与电子组态，有效提升催化剂酸性析氧催化活性与服役稳定性，完善质子交换膜水电解阳极催化材料体系，拓宽阳极催化剂选材空间。

基于ORC余热回收的碱性水电解制氢温控方法及系统

Absstract of: CN122669435A

0001 本申请公开了一种基于ORC余热回收的碱性水电解制氢温控方法及系统，所述方法包括：根据多个电解槽的负荷分布状态确定温控策略，基于所述温控策略确定各电解槽碱液的入口温度；将多个电解槽输出的碱液汇集后送入有机朗肯循环单元的热侧进行换热将热能转换为电能，基于电解槽入口温度、出口温度与运行电流的热平衡对应关系调节所述有机朗肯循环单元的换热强度；将换热降温后的碱液经循环泵分配至各电解槽入口。本申请在多槽碱性水电解制氢系统适配变负荷运行的需求下，既可以高效回收碱液余热提升能源利用效率，又能够根据多槽负荷分布匹配温控策略，保障系统运行效率与安全性。

一种紧凑型宽域功率可拓展光伏电解制氢系统及控制方法

Absstract of: CN122669397A

0001 本发明属于电解制氢技术领域，公开一种紧凑型宽域功率可拓展光伏电解制氢系统及控制方法；系统包括：供水循环单元，用于向各光伏制氢单组模块供给循环水；光伏制氢单组模块包括电解堆、单独光伏和气液分离回收单元；电解堆用于利用单独光伏产生的电能电解供水循环单元提供的循环水；气液分离回收单元包括氧气分离罐和氢气分离罐；氧气分离罐和氢气分离罐分别用于对所述电解堆输出的氧侧气液混合物和氢侧气液混合物进行气液分离，并使分离出的液体回流至所述供水循环单元；切换汇流单元，用于使光伏制氢单组模块在单组独立运行状态和多组组合运行状态之间切换。本发明能够实现光伏发电与电解制氢的模块化匹配，能够单组独立运行或多组组合运行。

一种泡沫铜负载镍-钴-钼的自支撑微纳结构电极及其制备方法与应用

Absstract of: CN122669410A

0001 本申请公开一种泡沫铜负载镍‑钴‑钼的自支撑微纳结构电极及其制备方法与应用，属于电解水制氢领域。制备方法包括如下步骤：（1）将泡沫铜进行处理得到预处理后的泡沫铜；（2）将预处理后的泡沫铜构建微纳结构，得到第一改性泡沫铜；（3）以第一改性泡沫铜为阴极，以纯Ni板为阳极，采用恒流电沉积法制备第二改性泡沫铜；（4）制备镍‑钴‑钼三元前驱液；（5）将第二改性泡沫铜加入镍‑钴‑钼三元前驱液中水热反应，得到电极前驱体；（6）电极前驱体煅烧退火，得到自支撑微纳结构电极。以泡沫铜为基底构建微纳结构，通过原位液相沉积金属镍实现泡沫铜改性，提高导电性与晶格适配性，在第二改性泡沫铜表面生长镍‑钼‑钴多元复合催化活性层。

一种铁镍双掺杂氮化钴多级碳基复合电催化剂及其制备方法和应用

Absstract of: CN122669430A

本发明属于电催化析氧反应催化剂技术领域，具体公开了一种铁镍双掺杂氮化钴多级碳基复合电催化剂及其制备方法和应用，本发明采用静电纺丝结合一步气相双源氮化热解一体化工艺，先配制含钴、铁、镍金属盐的静电纺丝前驱体溶液，经静电纺丝得到纳米纤维膜，再以二氰二胺为碳源与氮源，在氮气氛围下一步完成前驱体碳化、金属氮化、氮掺杂碳纳米管原位生长，制得复合电催化剂（Fe,Ni‑Co4N/N‑CNTs/CNFs）。本发明通过铁镍双金属原子级均匀掺杂引入晶格应变，调控活性位点电子结构，突破析氧反应中间体吸附标度限制；依托碳纤维‑碳纳米管三维多级导电网络，大幅提升导电、传质与气体脱附能力。同时本发明所得催化剂在碱性体系中表现出优异的析氧催化活性与稳定性。

电解槽及其制备方法以及制氢设备

Absstract of: CN122669407A

本公开提供了一种电解槽及其制备方法以及制氢设备。电解槽包括：阴极（流道、气体扩散层和催化层），阳极（流道、气体扩散层和催化层），质子交换膜（只传导质子，位于阴阳极之间）；阳极流道包含多个扰流沟槽结构，流道上方（远离膜一侧）的扰流沟槽结构主要用来在局部主动改变流体流向，流道下方（靠近膜一侧）的扰流沟槽结构主要用来增加导电区域面积；可以通过设计和优化流道中扰流沟槽结构的形态、数量与布局，来协同调控流道内的流体动力学行为（如扰动强化混合），从而同时提高流体的传质传热效率与电化学性能。

一种用于光电催化分解水的TNTs/NiO@CoPi阵列电极的制备

Nº publicación: CN122669409A 01/09/2026

Applicant:

武汉科技大学

Absstract of: CN122669409A

本发明公开一种用于光电催化分解水的TNTs/NiO@CoPi阵列电极(TNCP)的制备方法，属于光电催化新能源材料技术领域。本发明先采用二次阳极氧化制备高规整锐钛矿TiO2纳米管阵列（TNTs），再通过恒电流电沉积在纳米管表面及管内负载Ni纳米颗粒，高温煅烧生成p型NiO，构建TNTs/NiO p‑n异质结(TN)；最后采用AM 1.5模拟太阳光选择性光沉积非晶CoPi助催化剂，CoPi仅包覆NiO纳米球，不堵塞TiO2传质通道。本发明利用p‑n异质结拓宽250~800 nm全光谱光吸收，CoPi作为空穴捕获层抑制电子‑空穴复合，大幅降低界面电荷传输阻抗；TNCP沉积样品稳态光电流达0.06 mA・cm⁻2，为纯TNTs的3倍。本工艺全程无贵金属、无高毒腐蚀溶剂，反应条件温和，制得电极可用于光电分解水产氢、有机污染物光电氧化、乙二醇光电燃料电池，循环稳定性优异，具备规模化工业应用前景。