Alerta

Integrated reformer and reverse water gas shift reactions in a synthetic hydrocarbon production process and related systems

Absstract of: GB2703568A

Methods for producing synthetic fuels (synfuels) include reacting hydrogen and carbon dioxide in with a first catalyst (wherein a first catalyst bed inlet temperature in the rWGS reactor ranges from 250-400 degrees C), and an adsorbent in a first reverse water gas shift (rWGS) reactor to produce hydrogen, carbon monoxide, and water; cooling the hydrogen, carbon monoxide, and water produced in the rWGS, to produce a cooled syngas; separating, from the cooled syngas, water to produce a syngas comprising carbon monoxide, hydrogen, unconverted carbon dioxide, and methane; purifying the cooled syngas; reacting the cooled syngas with a second catalyst to produce a synthetic hydrocarbon solution; and purifying the synthetic hydrocarbon solution to produce a final product. A corresponding system is also claimed. No fig

ISOLATION CIRCUIT FOR HYDROGEN PRODUCTION SYSTEM AND RENEWABLE ENERGY HYDROGEN PRODUCTION SYSTEM COMPRISING SAME

Absstract of: EP4787698A1

0001 Provided in the present application are an isolation circuit for a hydrogen production system and a renewable energy hydrogen production system comprising same. The isolation circuit includes at least one direct-current conversion module and at least one DC-AC converter. The direct-current conversion module comprises a single-output port and a multi-output port, the single output port of the direct-current conversion module being in coupled connection with the DC side of the DC-AC converter, the multi-output port of the direct-current conversion module being in coupled connection with a plurality of external unidirectional power flow units and/or bidirectional power flow units, and each unidirectional power flow unit at least comprising a hydrogen production unit. The AC side of each DC-AC converter is in series coupled connection with an external alternating-current power grid or direct-current power grid. The present solution simultaneously satisfies application requirements of two coupling scenarios, effectively integrates various types of external units, and combines all components in systems into one, thus facilitating positioning of faults and repair while reducing costs.

OFF-GRID HYBRID ELECTROLYTIC HYDROGEN PRODUCTION SYSTEM

Absstract of: EP4786651A1

0001 An off-grid hybrid electrolytic hydrogen production system provided in the present application comprises a new energy power generation unit and an energy storage unit. A power conversion unit converts electric energy output by the new energy power generation unit and the energy storage unit into electric energy suitable for hydrogen production. An electrolysis unit comprises a proton exchange membrane hydrogen production module and a solid oxide electrolysis module, used to produce hydrogen after the introduction of electric energy. A controller uses control of charge and discharge of the energy storage unit to track an electric energy fluctuation value output by the new energy power generation unit, so that a value of total electric energy power fluctuation output by the new energy power generation unit and the energy storage unit is within a set range. The described solution provided by the present application can improve the hydrogen production efficiency of the entire hydrogen production system, and ensure that the hydrogen production system can achieve off-grid operation. Moreover, the present application eliminates the influence of power generation fluctuation of a new energy power generation unit on a hydrogen production result, by means of causing the total power fluctuation output by the new energy power generation unit and the energy storage unit to be within a set range.

PROCESS AND REACTOR FOR GENERATING THERMAL ENERGY AND BASE CHEMICALS

Absstract of: EP4529979A1

0001 Disclosed is a process for producing thermal energy and base chemicals and a reactor used for this process. The reactor contains a reaction space for oxidizing metal fuel with water and optionally other oxidants. The reaction space is connected at its outlet with a separation device for solids contained in the product gas leaving the reaction space. In the reaction space a first flame is generated which triggers the reaction of metallic fuel with oxidant to generate a second flame within the reaction space. The first flame is generated by using a fuel mixture which is introduced into the reaction space via one or more feed lines. At the end of this feed line(s) an ignition device acts on the fuel to ignite the first flame which in turn triggers the formation of the second flame. The thermal energy generated by the oxidation reaction is recovered by using one or more heat exchangers which may be placed at different lociations of the reactor. 0002 With the reactor and the process of this invention hydrogen and/or cabon monoxide is generated from metal fuel and water or CO<2>. When using water and carbon dioxide as oxidant a mixture of hydrogen and carbon monoxide is produced. These products can be used as base chemicals in various processes.

MODULAR ELECTROLYSIS SYSTEM

Absstract of: EP4530376A1

The invention relates to a modular electrolysis system comprising mulitple modules, wherein each of the mulitple modules comprises a support frame and at least one interface accessible from outside the support frame and configured to connect the module with at least one of the remaining modules, the mulitple modules comprising a water-gas coarse separation module downstream an anode outlet of the electrolysis cell module, and a water-gas fine separation module downstream a liquid outlet of the water-gas coarse separation module.

DE-ALLOYED ELECTROCATALYST

Absstract of: WO2025068691A1

The present invention provides a process for preparing solid, non-porous, de-alloyed electrocatalyst particles, the process comprising the steps of: providing solid, non-porous, platinum group metal alloy precursor particles PMn in which P is a platinum group metal and M is at least one alloying metal; in a de-alloying step to provide the solid, non-porous, de- alloyed electrocatalyst particles; supplying carbon monoxide to the precursor particles under conditions which remove at least some of the metal M from the surface of the precursor particles; wherein the de-alloyed electrocatalyst particles are particles of a platinum group metal alloy PMX in which P is a platinum group metal and M is at least one alloying metal, wherein the total atomic composition relative to P of M at the surface of the de-alloyed electrocatalyst is lower than the total atomic composition relative to P of M in the bulk of the de-alloyed electrocatalyst, and wherein x is less than n.

ELECTROLYSIS SYSTEM

Absstract of: EP4786653A1

Provided is an electrolysis system in which current efficiency of an electrolytic hydrogenation reaction is improved by restricting the amount of water migrating to a cathode while also supplying moisture to an electrolyte membrane and reducing resistance of the electrolyte membrane. Provided is an electrolysis system including an electrolyte membrane having proton conductivity, a cathode containing a catalyst for an electrochemical reaction involving protons, an anode containing a catalyst for oxidizing water to produce protons, and a structure that supplies water vapor to the anode, wherein the anode catalyst layer contains, in part thereof, an ionomer having proton conductivity, and a ratio of (002) diffraction peak intensity of carbon relative to (110) diffraction intensity of Ir oxide of the anode catalyst layer and ohmic resistance of the electrolysis system are within specific ranges.

OFFSHORE ELECTROLYSIS SYSTEM, AND METHOD FOR OPERATING AN OFFSHORE ELECTROLYSIS SYSTEM

Absstract of: WO2025124791A1

The invention relates to an offshore electrolysis system (100) comprising a wind turbine (1) having a tower (19), which is anchored to the seabed, and having an electrolysis plant (5), wherein the electrolysis plant (5) is connected to the wind turbine (1) by a supply line (11), and wherein the electrolysis plant (5) has an electrolyser (13) which is arranged in a container (9), wherein the container (9) is arranged below sea level (25). The invention also relates to a method for operating a corresponding offshore electrolysis system. In this method, water is broken down into hydrogen (H2) and oxygen by an electrolyser (13) of the electrolysis plant (5), which electrolyser is located below sea level (25), wherein the hydrogen (H2) produced is transported away via a product gas line (7).

MEMBRANE

Absstract of: WO2025068713A1

The specification describes bilayer electrolyte membrane comprising: a first layer comprising a polymer electrolyte having particles of a recombination catalyst dispersed therein; and a second layer comprising a polymer electrolyte not having any recombination catalyst dispersed therein; wherein the thickness of the bilayer electrolyte membrane is 40-60 µm; the concentration of recombination catalyst in the first layer is 1-100 µg/cm2; and the bilayer electrolyte membrane is a single coherent polymer film. Also described is a method for preparing the bilayer electrolyte membrane, a catalyst coated membrane for an electrochemical device comprising the bilayer electrolyte membrane, and a fuel cell comprising the catalyst coated membrane.

CATALYST COMPOSITE WITH GAS PERMEABILITY REDUCTION EFFECT AND POLYMER ELECTROLYTE MEMBRANE INCLUDING SAME

Absstract of: EP4786049A1

0001 The present invention relates to a catalyst composite and a polymer electrolyte membrane including same, wherein the catalyst composite is manufactured by complexing platinum and a metal having a higher ionization tendency than platinum with a functional support. When applied to a polymer electrolyte membrane, the catalyst composite effectively reduces the gas permeating from the counter electrode.

INTEGRATED SYSTEM FOR DEMINERALIZATION AND/OR PURIFICATION OF WATER AND FOR SIMULTANEOUS PRODUCTION OF HYDROGEN

Absstract of: WO2025068933A1

The present invention relates to an integrated system for demineralization and/or purification of water and for the simultaneous production of hydrogen comprising a heat-dissipating element thermally connected to a system for demineralization and/or purification of water which is hydraulically connected to an electrochemical cell producing hydrogen, wherein the system for demineralization and/or purification of water is a system operating through the principle of thermal distillation via membrane and comprises at least two units, each comprising a first chamber, inside which waste water to be demineralized and/or purified flows under pressure and a second chamber, inside which demineralized and/or purified water flows under pressure in the opposite direction with respect to the direction of flow of the waste water, the two chambers being separated by a preferably microporous hydrophobic membrane, wherein the at least two units are placed thermally in series and hydraulically in parallel with continuous flow, wherein each unit is hydraulically connected to a source of waste water and a source of demineralized and/or purified water, in particular wherein each first chamber comprises an inlet portion, hydraulically connected to the source of waste water, for introduction into the first chamber of waste water, while each second chamber comprises an inlet portion, hydraulically connected to the source of demineralized and/or purified water, for introduction into the second chamber

GRID FORMING CONTROL IN A POWER SYSTEM COMPRISING A HYDROGEN ELECTROLYZER STACK

Absstract of: WO2025067620A1

According to the invention it is provided a method for controlling a grid connected power converter having a DC side with a DC link and an AC grid side, and being configured to control power supply to a hydrogen electrolyzer stack. The power supply to the hydrogen electrolyzer stack is controlled by controlling the DC link to thereby control hydrogen production. The method comprises: determining a grid voltage reference; providing a grid forming control for controlling at least the phase angle of the voltage of the power converter using a grid forming controller, operating according to a grid forming algorithm, the grid forming controller being configured to emulate inertia through control of the voltage of the power converter towards the grid voltage reference; the grid forming controller emulating inertia by charging and discharging an inherent capacitance of the electrolyzer stack; monitoring at least one operating parameter of the hydrogen electrolyzer stack; and limiting a change in charging level of the inherent capacitance based on the monitored operating parameter of the electrolyzer stack.

HYDROXY ION CONDUCTIVE MEMBRANE, METHOD FOR PRODUCING HYDROXY ION CONDUCTIVE MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY, HYDROGEN PRODUCTION METHOD, AND HYDROGEN PRODUCTION SYSTEM

Absstract of: EP4786656A1

Provided are a hydroxide ion-conductive membrane including a porous substrate and a hydroxide ion-conductive polymer disposed at least in pores of the porous substrate and having a thickness of the hydroxide ion-conductive membrane of 5 µm or more and less than 50 µm, in which the polymer has 50% by mole or more of a constituent component (I) derived from a polyfunctional polymerizable monomer having a total of two or more atoms of at least one of an oxygen atom, a sulfur atom, or a nitrogen atom in a structural moiety other than a polymerizable group in constituent components of the polymer, and a method for producing the hydroxide ion-conductive membrane, and a membrane electrode assembly, and a method for producing hydrogen and a hydrogen production system, each using the membrane electrode assembly.

MEMBRANE ELECTRODE ASSEMBLY, HYDROGEN PRODUCTION METHOD, AND HYDROGEN PRODUCTION SYSTEM

Absstract of: EP4786655A1

Provided are a membrane electrode assembly having a structure in which a cathode catalyst layer, a hydroxide ion-conductive membrane, and an anode catalyst layer are laminated in this order, in which a tensile strength (a) and a breaking elongation (b) of a water-swollen body of a polymer contained in the cathode catalyst layer and/or the anode catalyst layer and a tensile strength (c) and a breaking elongation (d) of a water-swollen body of a hydroxide ion-conductive polymer constituting the hydroxide ion-conductive membrane satisfy the following relationships (Ri) and (Rii), a method for producing hydrogen, and a hydrogen production system. Tensilestrengtha>tensilestrengthcBreakingelongationb>breakingelongationd

ELECTROLYTIC CELL HAVING OPTIMIZED CONTACTING OF A CATALYST LAYER

Absstract of: WO2025124766A1

The invention relates to an electrolytic cell (01) for the electrolysis of CO2, comprising a cathode side (02) and an anode side (03). The electrolytic cell (01) comprises a cathode plate (04), a gas chamber (06), a gas-diffusion layer (08), a catalyst layer (09), a water chamber (07) and an anode plate (05). The contacting of the catalyst layer (09) is optimized by using a plurality of current bridges (10). To this end, these current bridges (10) are electrically conductively connected to the cathode plate (04) and to the catalyst layer (09) while penetrating the gas-diffusion layer (08).

Method of operating an electrolyser system

Absstract of: GB2703615A

A method 300 of operating an electrolyser system comprising a plurality of stacks of electrolyser cell units wherein production rate differs between stacks, comprising identifying 305 a first subset of stacks characterised by a first production rate at a nominal temperature and voltage; identifying 310 a second subset of stacks characterised by a second production rate at the nominal temperature and voltage; identifying 315 an overall production rate target; determining 320 a plurality of subsidiary production rate targets for the respective subsets of stacks based on dividing the overall production rate target by the number of stacks; deriving 330 a value for a first control parameter for the first subset of stacks to satisfy their subsidiary production rate target; and controlling 325 the plurality of stacks at the overall production rate target using a first control parameter derived for the first subset of stacks. Also disclosed is a method comprising calculating first and second collective production rates for the first and second subsets of stacks; identifying that the first collective production rate is greater than the second collective production rate; and controlling the plurality of stacks using at least one control parameter derived for the first subset of stacks. Figure 3

一种兼具安全运行与快速复启的电解槽控制系统及方法

Absstract of: CN122503912A

本发明公开了一种兼具安全运行与快速复启的电解槽控制系统及方法，通过气体纯度异常判定阈值：氢中氧＞0.2%、氧中氢＞1.5%。当检测到气体纯度不达标时，系统自适应提升电解槽运行负荷，通过强化电解液循环、均衡槽内工况抑制气体互窜杂质；若超负荷调节无效，系统立即进入安全待机模式。对管路氮气置换、排出不合格气体，向电解槽施加微电压维持电极活性，全程保持槽温与碱液循环；安全待机模式持续时长不超过24h。本发明无需停机即可规避传统停机产生的逆电流对电极的衰减损伤，通过24小时限时安全机制严控运行风险，大幅减少设备启停频次，兼具运行安全性与快速复启能力，有效延长电解槽电极、隔膜使用寿命，适用于各类大中型碱性水电解制氢系统。

基于光伏电解制氢的直流电输出适配控制系统

Absstract of: CN122507055A

本发明公开了基于光伏电解制氢的直流电输出适配控制系统，涉及直流电输出适配控制技术领域，主要是针对光伏电解制氢中，缺乏对电解槽老化状态的精准识别与分级管控的技术问题，本发明中，先结合制氢过程中的电流、电压及效率参数曲线，精准识别电解槽恒定状态与波动状态下的老化异常，针对性采取停机维护、错峰运行或强度调节等措施，避免老化加剧与制氢效率下降，再以环境温度、气压为核心参数，检测运行环境对制氢效率的干扰，及时调整环境控制策略或效率参数设定，保障制氢稳定性，最后结合季节变化划分光伏时段，根据满负荷与低负荷运行的参数差异，结合季节光照变化调整运行参数，实现制氢供需与光伏出力的动态适配。

一种钒掺杂镍磷化物双功能电催化剂及其制备方法和在肼氧化辅助制氢中的应用

Absstract of: CN122503907A

0001 本发明涉及电催化材料。本发明提供了一种钒掺杂镍磷化物双功能电催化剂的制备方法，包括以下步骤：（1）水热反应：将镍源、钒源、氟化铵、尿素加入水溶解，室温条件下磁力搅拌混合均匀，将预处理后的碳布浸入，进行水热反应，干燥，得到亲氧性钒掺杂的氢氧化镍前驱体；（2）磷化处理：将磷酸盐与氢氧化镍前驱体分别置于两个陶瓷舟中，在氩气气氛下焙烧，升温，保温，冷却至室温，即得钒掺杂镍磷化物双功能电催化剂。本发明提供的钒掺杂镍磷化物双功能电催化剂，通过引入亲氧性钒元素重构界面氢键网络和诱导肼双位点吸附，实现了优异的析氢与肼氧化反应动力学，同时有效缓解了活性组分溶解、晶格应力累积等问题，从而实现了超长稳定运行。

一种电解水制氢系统及热管理方法

Absstract of: CN122503890A

本发明公开了一种电解水制氢系统及热管理方法，包括：电解槽连接氢分离器的输入端和氧分离器的输入端，氢分离器的气体输出端连接氢气洗涤器，氧分离器的气体输出端连接氧气洗涤器，氢分离器和氧分离器的液体输出端依次连接换热器、电加热器、碱液循环泵和电解槽，换热器的热循环输出端依次连接S3三通球阀、S2三通球阀、S1三通球阀、冷却水循环泵和换热器的热循环输入端，S3三通球阀与S2三通球阀之间还并联设置有蓄热水箱，S1三通球阀和冷却水循环泵之间还并联设置有冷却塔。本发明通过余热回收储存利用，搭配电加热，增大冷启动碱液升温速率，减少冷启动时间，减少冷启动人、物力消耗，提高能源利用率。

一种低温等离子体催化储能技术及设备

Absstract of: CN122499730A

本发明公开了一种低温等离子体催化储能技术及设备，涉及可再生能源利用、等离子体催化及电能化学储存领域。一种低温等离子体催化储能技术，主要包括以下操作步骤：步骤一、将设备电源接入公共电网或可再生电源，启动控制柜与中控屏，检查系统自检项，由电解槽电源启动电解槽与液流泵；步骤二、通过纯水器向纯水箱供应电解用纯水，液流泵将纯水箱内的纯水输送至电解槽；本发明通过将电解水制氢系统与多通道并联介质阻挡放电等离子体催化反应器模块化集成，以可再生电力为输入，制氢后与氮气或二氧化碳等配气引入反应系统，通过低温等离子体与催化协同作用转化生成氨、甲醇、甲烷等高能化学产物，实现电能化学储存。

泡沫镍负载催化剂及制备方法和应用、电解制氢的方法

Absstract of: CN122503895A

0001 本发明涉及电解制氢技术领域，公开了一种泡沫镍负载催化剂及其制备方法和应用、一种电解制氢的方法。所述制备方法包括：将含M1源的有机溶液和含M2源的水溶液混合，得到前驱体溶液与泡沫镍接触并进行静置反应，得到泡沫镍负载催化剂；其中，M1和M2均为二价金属元素，各自独立选自Co、Fe、Ni和Zn中的至少一种，且M1≠M2。该制备方法采用一步异质成核的有机‑无机溶剂诱导自组装纳米花结构催化剂；同时，将其用于电解制氢，显著提高了电催化氧析出反应的催化性能和稳定性。

一种催化甲酸分解产氢催化剂的制备方法

Absstract of: CN122499813A

本发明提供一种催化甲酸分解产氢催化剂的制备方法，属于催化材料技术领域。该催化剂以具有大π共轭体系的g‑C3N4为载体，负载金属纳米颗粒（钯、铂及其合金），通过浸渍还原法或光还原法实现金属颗粒在载体表面的高分散负载。本发明利用g‑C3N4的π共轭体系与金属纳米颗粒的d轨道形成d‑pπ相互作用，显著降低金属表面电子密度，促进甲酸根离子与金属活性位点的结合，在室温下实现甲酸向H2和CO2的100%选择性转化。所制备催化剂具有催化活性高、稳定性好、制备工艺简单，尤其Pd/g‑C3N4及Pt‑Pd/g‑C3N4催化剂的TOF值显著优于传统载体负载催化剂，为甲酸制氢技术的工业化应用提供了高效催化材料。

一种中压式碱性水电解制氢设备

Absstract of: CN122503887A

0001 本发明涉及氢能制备技术领域，具体地说，涉及一种中压式碱性水电解制氢设备，其包括电解槽以及与电解槽相连通的分离罐，所述分离罐的排气端设置有稳压阀，还包括储液罐，内部储存有备用液体，并与分离罐连通；控制机构，包括随所述分离罐内液位同步升降的漂浮件和限位机构，所述漂浮件根据液位的高度变化，驱动限位机构在第一位置与第二位置之间切换。本发明通过所设的控制机构跟随分离罐液位变化，当电动补水机构失效导致液位异常下降时，控制机构可强制锁闭稳压阀，利用分离罐自身憋压所产生的气压升高，作为判断电解槽仍在产气的状态信号和驱动后续动作的动力源。随后通过感压驱动阀开启储液罐与分离罐之间的补水管路。

一种利用锰介导的水岩反应制氢的方法

Nº publicación: CN122501824A 04/08/2026

Applicant:

中国科学院广州地球化学研究所

Absstract of: CN122501824A

本发明公开了一种利用锰介导的水岩反应制氢的方法，包括以下步骤：（1）取含锰橄榄石进行破碎和研磨处理，得含锰橄榄石粉末；（2）将含锰橄榄石粉末和氯化钠稀水溶液混合，调节反应温度为150~450℃，控制压强为0.1‑100MPa，进行水岩反应，收集气体样品并去除水蒸气即得。该方法采用的新型矿物产氢剂锰橄榄石，同样在自然界大量分布，且可人工合成，并在锰铁矿冶炼废渣中作为废料被遗弃，易获得，原料充足；与传统的镁铁橄榄石相比，锰橄榄石产氢效率快30%左右，产氢量高达2‑16余倍；制氢工艺简洁、稳定，可大规模工业化应用。