Alerta

PROCESS AND APPARATUS FOR CRACKING AMMONIA

Absstract of: EP4620907A1

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%.

RUTHENIUM CATALYST FOR AMMONIA DECOMPOSITION REACTION HAVING EXCELLENT AMMONIA DECOMPOSITION ACTIVITY AND METHOD FOR PRODUCING SAME

Absstract of: EP4620566A1

The present invention provides a ruthenium catalyst for ammonia decomposition reaction and a method for producing the same. The ruthenium catalyst exhibits a conversion rate of almost 100% at a reaction temperature of 550°C, further exhibits a conversion rate of 93.6% or higher even at 500°C, and also exhibits a conversion rate of about 60% or higher even at a low reaction temperature of 450°C, so that the catalyst has excellent ammonia decomposition activity and low manufacturing cost and thus is economical for an ammonia decomposition process even in a large-scale decomposition process of a relatively low temperature.

CLEAN ENERGY CONVERGENCE CENTER USING BLUE AND GREEN HYDROGEN

Absstract of: EP4621699A1

The present invention relates to a clean energy convergence center using blue and green hydrogen. According to an embodiment of the present invention, the clean energy convergence center comprises: a clean hydrogen production base for producing blue and green hydrogen through the capture, storage, and recycling of carbon dioxide generated during methane reforming; and at least one clean hydrogen node that is supplied with the blue and green hydrogen produced from the clean hydrogen production base. The clean hydrogen nodes are distributed in large numbers throughout the country in consideration of factors including the area and population of each of regions and the distance to the clean hydrogen production base. The clean hydrogen production base and the clean hydrogen nodes are connected, and infrastructure including logistics, rest facilities, offices, and restaurants is expanded around each of the distributed clean hydrogen nodes.

ELECTROLYSIS SYSTEM AND ELECTROLYSIS DEVICE

Absstract of: EP4621106A1

An electrolysis system (1) includes: an electrolysis cell (2); and a mediator reduction tank (4). The electrolysis cell (2) has: an anode electrode (10) that electrochemically oxidizes a reduced form (MRed) of a mediator; and a cathode electrode (8) that performs at least one of generation of hydrogen by electrochemical reduction of protons or water and generation of an organic hydride by electrochemical reduction of a hydrogenation target substance. The mediator reduction tank (4) non-photochemically reduces an oxidized form (MOx) of the mediator generated in the electrolysis cell (2).

CELL FRAME FOR PRESSURIZED ELECTROLYSER CELL STACK AND ELECTROLYSER CELL STACK COMPRISING A NUMBER OF SUCH CELL FRAMES

Absstract of: AU2023381476A1

A cell frame adapted for use in a pressurised electrolyser cell stack is provided. From an inner circumferential rim of the cell frame, a circumferential radial shelf with inwardly tapering thickness is provided, such that an annular space between a circumferential radial shelf and a neighbouring circumferential radial shelf is provided when cell frames are stacked in alignment with each other, and that outwardly of the circumferential radial shelf, a mobility link is provided which connects the radial shelf to the remaining cell frame.

SOLID ELECTROCHEMICAL CELL STACK

Absstract of: CN120226171A

The present disclosure relates to an electrochemical cell stack comprising solid state electrochemical cells (20), an electrically conductive separator (30); and a sealing element (40). The separator comprises: a central portion (31) having an oppositely recessed support surface (32) supporting the solid oxide cell, and a contact surface (34) opposite the recessed support surface contacting an adjacent solid state electrochemical cell; and a boundary portion (36) providing a relatively elevated top (37) and upstanding side walls (38). A sealing element (40) extends between an elevated top surface of the boundary portion and an opposing support surface (39) of an adjacent bulkhead. The spacing distance between the concave support surface and the contact surface of the adjacent separator, defined by the combined height of the sealing element and the upstanding side wall, is matched to the thickness of the solid state electrochemical cell.

PROCESS FOR PRODUCING HYDROGEN GAS FROM THE CATALYTIC CRACKING OF AMMONIA

Absstract of: CN119998228A

Process A: a process for producing hydrogen from catalytic cracking of ammonia. The method includes the step of supplying a hydrogen-containing recycle gas taken downstream of an ammonia cracking reactor to one or more catalyst-containing reaction tubes disposed within the ammonia cracking reactor. The invention can be used to provide hydrogen as a carbon-free fuel.

WATER ELECTROLYSIS DEVICE AND METHOD FOR OPERATING WATER ELECTROLYSIS DEVICE

Absstract of: EP4621107A1

A water electrolyzer includes a water electrolysis cell, a voltage applicator, a pressure regulating valve, and a controller. The water electrolysis cell includes a diaphragm or an electrolyte membrane, an anode, and a cathode. The anode is provided in one of two spaces separated by the diaphragm, or on one of two main surfaces of the electrolyte membrane. The cathode is provided in the other space separated by the diaphragm, or on the other main surface of the electrolyte membrane. The voltage applicator applies voltage between the anode and the cathode. In start-up of the water electrolyzer, the controller controls the voltage applicator to increase current flowing through the water electrolysis cell, and then controls the pressure regulating valve to increase set pressure of the pressure regulating valve.

PREDICTIVE MAINTENANCE OF HYDROGEN-ENERGY SYSTEMS

Absstract of: EP4621890A1

The disclosure notably relates to a computer-implemented method for predictive maintenance of a system. The system comprises a hydrogen energy component, a cooling circuit, at least one actuator of the cooling circuit and at least one sensor collecting operating data during an operating of the system. The method comprises, during the operating of the system, the following three steps. The method comprises a first step of obtaining the operating data collected by to the at least one sensor. The method comprises a second step of estimating that a current state of the system is the fault state. The method comprises a third step of predicting a future state of the system. Such a method forms an improved solution for predicting maintenance of the system comprising the hydrogen energy component.

ELECTROLYZER FOR PRODUCING HYDROGEN AND METHOD FOR THE PRODUCTION OF HYDROGEN

Absstract of: EP4621098A1

The present invention is related to an electrolyzer for producing hydrogen and to a method for the production of hydrogen.The electrolyzer for producing hydrogen (210) comprises a plurality of electrolysis cells (1) arranged in a plurality of planes (2), each having at least one anode (10) and one cathode (11) and a proton exchange membrane (3) between the anode (10) and the cathode (11), the proton exchange membranes (3) forming respective active area regions (30), wherein at least one electrolysis cell (1) has a plurality of active area regions (30) arranged substantially in a plane (2), wherein the electrolyzer comprises at least one tie rod (130) provided between active area regions (30) and extending perpendicular with regard to the planes (2).

CRACKING OF AMMONIA USING A CONDENSING MEDIUM

Absstract of: EP4620905A1

Process for producing hydrogen from ammonia, comprising the steps :i) providing an ammonia feed,ii) providing a condensable medium, preferably water steam,iii) performing an endothermic cracking reaction of the ammonia feed in a cracker unit (18, 28) for producing a cracked gas comprising hydrogen and nitrogen,iv) condensing at least partially said condensable medium,v) providing heat from the condensation to the endothermic cracking reaction,vi) recovering hydrogen from said cracked gas or from a gas derived from said cracked gas.

APPARATUS FOR PRODUCING HYDROGEN, FROM AN AMMONIA FEEDSTOCK STREAM

Absstract of: EP4620904A1

The invention relates to an apparatus (2) for producing hydrogen, from a feedstock stream (3) comprising ammonia, traces of water and oil contaminants, said apparatus (2) comprising:- a vaporizer (4) comprising a vaporization chamber (6) configured to receive the feedstock stream (3) and produce a vaporized purified ammonia stream (7), said vaporization chamber (6) comprising a blowdown outlet (8) configured to discharge a blowdown stream (10) comprising the traces of water and oil contaminants from said vaporization chamber (6);- an ammonia cracking reactor (12) for performing an endothermic reaction of said vaporized purified ammonia stream (7), thereby producing said hydrogen; and- a fired equipment (14);wherein said blowdown outlet (8) is connected to the fired equipment (14) for providing the blowdown stream (10) as an ammonia fuel stream to the fired equipment (14).

ELECTROLYSIS OXYGEN FOR SUSTAINABLE ACETYLENE CHEMISTRY

Absstract of: EP4620937A1

A process for preparing acetylene and/or synthesis gas by partial oxidation of hydrocarbons with an oxidizing agent, wherein the oxidizing agent comprises O2 and H2, wherein the oxidizing agent is obtained at least in part by water splitting, preferably by electrolysis, the water splitting, preferably the electrolysis, preferably using energy generated at least in part from non-fossil resources, a cracking gas stream obtainable by the process according to the present invention, acetylene obtainable by the process according to the present invention, acetylene having a low total cradle to gate product carbon footprint, synthesis gas obtainable by the process according to the present invention, synthesis gas comprising hydrogen, CO, CO2 and CH4, wherein the separated synthesis gas stream has a δ<18>O value of < 22 %o, referred to the international standard VSMOW ((Vienna- Standard- Mean-Ocean- Water)), the use of an oxidizing agent comprising O2 and H2 for the preparation of acetylene and synthesis gas, the use of the inventive acetylene or the acetylene obtained by the inventive process for the preparation of butynediol, butanediol, butenediol, polybutylene terephthalate (PBT), polybutylene adipate terephthalate (PBAT), tetrahydrofurane (THF), polytetrahydrofurane (polyTHF), polyester-based thermoplastic polyurethanes (TPUs), polyether-based TPUs, gamma-butyrolactone, pyrrolidine, vinylpyrrolidone, polyvinylpyrrolidone, N-methylpyrrolidone, vinyl ether, polyvinyl ether, terpen

STATE DIAGNOSIS SYSTEM, STATE DIAGNOSIS METHOD, AND ELECTROLYSIS SYSTEM

Absstract of: EP4621108A1

A diagnosis system of an electrolysis device, includes: a device to output an impedance data indicating a measurement result of a complex impedance; a first memory unit to store prior data including a relation data indicating a relation between state of the device and a diagnosis result of a state of the device; a first processing unit to analyze the impedance data, judge validity of an analysis result, and output an analysis data indicating the analysis result in which data indicating at least a part of a frequency region of the measurement result is determined valid; a second processing unit to output a state data indicating the state based on first data including the analysis data; a second memory unit to store second data including the state data; and a third processing unit to output a diagnosis data based on data including the prior data and the second data.

一种含铱负载型催化剂及其制备方法和应用、质子交换膜水电解槽

Absstract of: CN120683527A

本公开涉及一种含铱负载型催化剂及其制备方法和应用、质子交换膜水电解槽，所述催化剂包括载体和负载在所述载体上的活性组分，所述载体为二氧化钛、五氧化二铌和五氧化二钽中的一种，所述活性组分为铱的氧化物；所述催化剂的XRD谱图上存在所述载体的特征峰和铱的氧化物的无定型峰包。本公开的催化剂具有比商业氧化铱催化剂更高的催化活性，并且贵金属用量显著降低，成本显著降低，具有较大的使用价值。

单质/合金-金属羟基氧化物锚定贵金属单原子/团簇异质结催化剂及其制备方法

Absstract of: CN120683557A

本发明涉及单质/合金‑金属羟基氧化物锚定贵金属单原子/团簇异质结催化剂，其包括：1)将金属盐A，尿素和氟化铵溶于去离子水中得到混合溶液B；2)将混合溶液B和载体进行水热反应，得到初步样品1；3)将初步样品1在氢气与氩气的混合气氛中进行高温煅烧，得到初步样品2；4)将初步样品2放入贵金属化合物C溶液中进行真空浸渍，浸渍后将样品取出干燥得到所述催化剂。本发明采用上述方案，以金属盐A为单质/合金的金属来源，先经过水热合成金属氢氧化物后再进行高温煅烧还原，金属盐A煅烧形成单质/合金，随后在贵金属化合物溶液C中浸渍，形成金属羟基氧化物，同时将贵金属单原子/团簇锚定，这样制备的催化剂活性高，且制备方法简单。

生产压缩氢气的系统

Absstract of: GB2636962A

An electrolyser system (10) and a method of operating an electrolyser system (10), the electrolyser system (10) comprising an electrolyzer (16) and a metal hydride or adsorption-desorption compressor (24), where the electrolyser (16) has at least one electrolyser cell with a steam input (22) and at least one gas output. The method comprises supplying steam through a first side of the electrolyser cell at the steam input (22), operating the electrolyser (16) to split part of the steam into hydrogen and oxygen in the at least one electrolyser cell, venting a mixture of the hydrogen and the remaining steam from the first side of the electrolyser cell at the at least one gas output (18), passing the mixture into the metal hydride or adsorption-desorption compressor (24), and cryo-adsorbing the hydrogen of the mixture in the metal hydride or 15 adsorption-desorption compressor (24) to compress the hydrogen and desorbing the compressed hydrogen from the metal hydride or adsorption-desorption compressor (24). The electrolyser system (10) is connected to a source of cold waste gas to operate the cryo-adsorption.

一种CoFe双金属磷化物大电流碱性全解水电极及其制备方法

Absstract of: CN120683524A

本发明公开了一种CoFe双金属磷化物大电流碱性全解水电极及其制备方法，制备方法包括：以泡沫镍为工作电极，铂片为对电极，饱和甘汞电极为参比电极，采用恒电位沉积法原位生长Co(OH)2纳米片，得到Co(OH)2/NF复合材料；Co(NO3)2·6H2O、FeCl3·6H2O和有机配体溶解于DMF中，搅拌形成均相溶液，将Co(OH)2/NF复合材料浸入其中，在加热保温的条件下进行溶剂热反应，自然冷却，真空干燥，得到的CoFe‑MOF/NF前驱体进行气相磷化处理，得到CoFe双金属磷化物，其作为大电流碱性全解水电极具有析氢和析氧性能，作为阴阳极组装的对称电解槽可以实现大电流碱性全解水的高稳定性。

一种单斜相钼掺杂钒酸铋光电极及其制备方法与应用

Absstract of: CN120683548A

本发明公开了一种单斜相钼掺杂钒酸铋光电极及其制备方法与应用，属于光电化学降解污染物和制氢技术领域。通过水热‑退火法合成了单斜相钼掺杂钒酸铋光电极，在四方相转换为单斜相前于氢氧化钠溶液中静置，然后再涂覆钼盐溶液，最后再通过退火实现相转变，得到单斜相钼掺杂钒酸铋光电极。该光电极拥有纳米颗粒组成的柱状结构，比表面积大，有利于载流子分离，具有较好的光电化学降解氨基酸和制氢性能。且通过在水中溶解一定浓度的氨基酸即可大幅度提升该光电极的光电化学制氢性能并完成对氨基酸的降解。

一种析氢电极的再生方法

Absstract of: CN120683558A

本发明涉及碱性电解水制氢领域，特别涉及一种析氢电极的再生方法，解决了现有技术中析氢电极表面失活，无法再生利用的问题。首先将待再生析氢电极进行水洗处理；接着对经水洗后的所述待再生析氢电极进行一次酸浸，同步加入还原剂，随后清洗干燥；再将处理后的所述待再生析氢电极进行热碱浸处理；最后对经碱浸后的所述待再生析氢电极进行二次酸浸，洗净后即完成再生处理；通过采用“弱酸预溶‑强碱剥离‑强酸活化”的阶梯式处理策略，实现了对析氢电极表面及内部结构的深度修复与功能重建，为析氢电极的循环利用提供选择。

一种1TMoS2-NiS2/CC异质结电解海水催化剂及其制备方法和应用

Absstract of: CN120683541A

本发明提供一种1TMoS2‑NiS2/CC异质结电解海水催化剂及其制备方法和应用，制备方法包括以下步骤：将二水钼酸钠与六水硝酸镍溶于超纯水中搅拌形成均一的悬浮液，将碳布放入悬浮液中并转移至高压釜；将高压釜放入烘箱中，水热处理获得NiMoO‑Pre/CC，反应结束后取出NiMoO‑Pre/CC，洗涤、干燥；最后将NiMoO‑Pre/CC放置在管式炉中硫化处理；本发明制备了界面丰富、缺陷丰富的1TMoS2‑NiS2/CC异质结，其在析氢过程中能保持高活性1T‑MoS2，制备操作简便，可控性强，在碱性电解海水中表现出优异的电化学性能，具体表现为52 mV即可达到电流密度10 mA cm‑2。

一种碱性水电解槽极板绝缘涂层脱落预警系统及方法

Absstract of: CN120685154A

本发明公开了一种碱性水电解槽极板绝缘涂层脱落预警系统及方法，预警系统包括预埋在极板外缘表面绝缘涂层中的柔性网格状压敏电阻薄膜、预埋在极板外缘表面绝缘涂层中的光纤传感器、电阻值数据采集模块、光信号数据采集模块、光纤传感器的光信号数据和包含有分析与报警模块的监测预警系统，监测预警系统根据电阻值数据和光信号数据分析和判断是否发生涂层脱落情况，并在涂层脱落时发出报警信号；柔性网格状压敏电阻薄膜通过电阻数据引出线连接电阻值数据采集模块，光纤传感器通过光信号数据引出线连接光信号数据采集模块，电阻值数据采集模块、光信号数据采集模块分别连接监测预警系统。本发明实现了电解槽极板绝缘涂层状态的在线实时监测与主动预警。

电解水制氢装置及其膜电极组件和交换膜

Absstract of: CN120683515A

本申请实施例提供一种电解水制氢装置及其膜电极组件和交换膜。所述电解水制氢装置包括：阳极端板、阳极集流体、膜电极组件、阴极集流体和阴极端板。所述膜电极组件包括阳极扩散层、阳极催化层、交换膜、阴极催化层和阴极扩散层，其中所述交换膜包括离子溶剂化膜和阴离子交换膜，所述离子溶剂化膜介于所述阳极催化层和所述阴离子交换膜之间，且所述交换膜的厚度为80‑120μm。本申请实施例所提供的技术方案解决了现有的单层阴离子交换膜的化学稳定性较低，并容易变薄破裂等问题。

用于裂化氨的工艺和设备

Absstract of: US2025296836A1

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%.

一种Pt团簇掺杂多金属镍基磷化物的制备及性能研究

Nº publicación: CN120683549A 23/09/2025

Applicant:

哈尔滨理工大学

Absstract of: CN120683549A

本发明涉及电催化全解水领域一种Pt团簇掺杂多金属镍基磷化物的制备及性能研究。本发明目的是解决传统Pt基催化剂原子利用率低及高成本制约规模化应用的问题。本专利设计了一种Pt团簇掺杂多金属镍基磷化物的制备方法，研制了CoPt3‑Co/Fe2P/MoNiP@IF贵金属团簇掺杂的多金属磷化物材料。所采用的方法：以多酸镍钼六和硝酸钴为原料通过水热合成法后再进行磷化，最后通过光沉积法将Pt‑Mo团簇锚定于磷化物基底，制备的一种Pt团簇掺杂多金属镍基磷化物适用于碱性电解液和碱性海水中的全解水，且具有低析氢过电位和低析氧过电位以及高催化活性。