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860
results.
Updated on
15/11/2026 [07:11:00]
Results 450 to 475 of 860
Absstract of: EP4527790A1
The invention relates to a process (100) for producing a hydrogen product and a nitrogen product from an ammonia feed stream, comprising the following steps:• In a reactor, performing an endothermic cracking reaction of the ammonia feed stream (101) into a cracked gas comprising hydrogen and nitrogen,• In a main separation unit, performing a main separation (102) of said cracked gas stream, thus producing:- the hydrogen product,- a main separation unit tail gas comprising nitrogen and a residual portion of hydrogen,• In a secondary separation unit, performing a secondary separation (104) of the main separation unit tail gas into a secondary separation unit tail gas as the nitrogen product and a nitrogen depleted fuel stream• Routing (115) said fuel stream to a furnace to provide heat to the endothermic cracking reaction.
Absstract of: GB2705217A
A process for climate-positive operation of a power generation system. A hydrogen H and natural gas HG fuel and compressed oxygen O are provided to a combustion chamber 303 to generate and provide a high temperature and high-pressure gas flow to drive a shaft 275 by expansion of the exhaust gas. A flow of expanded exhaust gas is provided to a heat recovery steam generator 201 to generate steam to drive a steam turbine 270. A flow of steam is provided from the heat recovery steam generator to a first electrolyzer 230 to produce hydrogen and oxygen gases. A flow of exhaust gas is provided from the heat recovery steam generator to a membrane separation system 281 for separation of residual gases, such as sulphur-dioxide, nitrogen-oxides and particulates, and a flow of carbon-dioxide gas and water vapor is provided from the membrane separation system to a second electrolyzer 701 to produce hydrogen gas, oxygen gas and magnesium carbonate. A flow is provided from the second electrolyzer to a gas monitoring system 298. Figure 10
Absstract of: WO2025113761A1
An electrolyzer stack (17) wherein each of the electrode compartments (5, 6) is delimited by the ion-transporting separator (15) and a bipolar plate (14) as well as a gasket (25) that is surrounding the electrode compartments (5, 6). An electrolyte manifold (27) extends along the stack (17) and through an opening (20) in each of the bipolar plates (14). The electrolyte manifold (27) is formed by multiple serially connected flow restrictors (28), of which one flow restrictor (28) is provided per cell (1) and inserted between neighbouring gaskets (25) and comprises a flow canal (30) having a canal inlet (30 A) and a canal outlet (30B), wherein the canal inlet (30 A) is provided in the throughput opening and fluid-flow connected to the electrolyte manifold (27) and the canal outlet (30B) is fluid-flow connected to one of the cells (1) for supply of electrolyte from the electrolyte manifold (27) to the respective cell (1). The canal is narrow and long for reducing shunt currents and for providing a pressure drop larger, for example at least 10 times higher, than a pressure drop along the electrolyte manifold (27).
Absstract of: EP4818112A1
0001 A hydrogen generation apparatus includes a hydrogen generator, a primary coil circuit, a hydrogen compressor, and a hydrogen storage cylinder. The hydrogen generator includes a hydrogen generator body, a secondary coil, and an eddy current generating unit. The hydrogen generator body has a chamber, and is configured with a first inlet for introducing a first substance, a second inlet for introducing a second substance, an outlet and an exhaust port. The secondary coil is wound around the hydrogen generator body. The eddy current generating unit is disposed in the chamber corresponding to the secondary coil. The primary coil circuit is coupled to the secondary coil to induce the secondary coil to generate a high-voltage alternating current, thereby causing the eddy current generating unit to generate an eddy current and produce high temperature. A thermal cracking reaction is induced by the high temperature to generate hydrogen gas.
Absstract of: WO2026127464A1
The present invention relates to a water electrolysis operation control system linked to power produced from solar energy, and, to a water electrolysis operation control system linked to solar-generated power for maximizing hydrogen production relative to renewable energy generation. The present invention comprises: a water electrolysis system (100) that is supplied with power from a solar power system and produces hydrogen; and a control unit (200) that controls an output of the water electrolysis system, wherein the control unit adjusts the output of the water electrolysis system according to the variability of the amount of solar power generation, by controlling the output of the water electrolysis system, controlling regular time intervals, controlling regular output intervals, and combining the control of the regular time intervals and the control of the regular output intervals, thus having the effect of reducing ESS capacity and increasing hydrogen production efficiency by means of a water electrolysis operation method that actively responds to the variability of renewable energy.
Absstract of: GB2705198A
An electrolyser and a method for operating the electrolyser for producing hydrogen is described, The electrolyser and associated method mitigate performance degradation commonly resulting during shutdown periods. The electrolyser comprises a stack of electrolysis cells, a primary power supply and a secondary power supply. During periods Of operation the electrolyser is adapted to produce hydrogen when an electrical voltage from the primary power supply is applied to the stack, and during periods of non-operation, the secondary power supply is configured to apply an electrical voltage to the stack sufficient to inhibit degradation of the stack. The secondary power supply may be a battery or a capacitor configured to supply a voltage from 0.8-1.8V Figure 3
Absstract of: WO2025162752A1
A method is disclosed for producing an electrode (4) having a noble metal catalyst for alkaline water electrolysis. The method comprises: (S1) providing the electrode substrate (1); (S2) providing a matrix material (2) and a catalyst material (3) as starting materials for the coating; (S3) mixing the matrix material (2) and the catalyst material (3); and, (S4) coating the substrate (1) with the mixture of matrix material (2) and catalyst material (3) by means of high-velocity oxygen fuel spraying (HVOF). A correspondingly produced electrode (4), an electrochemical cell (10) comprising said electrode, and an electrolyser (20) are also specified.
Absstract of: WO2025114700A1
A process for preparing an oxygen evolution reaction (OER) catalyst comprises an oxygenated iridium component supported on a particulate solid support, which process comprising the steps of: (i) forming an aqueous mixture comprising a particulate solid support and a solution of a halide-free metal iridate; (ii) reducing the pH of the aqueous mixture to ≤ 5.0 to precipitate an oxygenated iridium component onto the particulate solid support; and (iii) isolating the product of step (ii).
Absstract of: WO2025114716A1
A water-electrolyser anode for a proton exchange membrane (PEM) water electrolyser comprises: a transition metal oxychalcogenide catalyst having the formula ABxOy, wherein A is a transition metal and B is a chalcogenide, and wherein 0 < x < 2 and 0 < y < 2. Also provided are a proton exchange membrane (PEM) water electrolyser, a method of water electrolysis, use of a transition metal oxychalcogenide as a catalyst in an oxygen evolution reaction under acidic conditions, and a method of manufacturing an anode for an electrolyser.
Absstract of: EP4818371A1
0001 The present application provides for a component for an electrolytic apparatus, comprising: a stack formed by a first porous transmission layer, a first electrode layer, a membrane, a second electrode layer, and a second porous transmission layer stacked in sequence along a stacking direction; a seal disposed about the stack in a lateral direction perpendicular to the stacking direction; and a first electrode frame comprising a first retaining portion and a second electrode frame comprising a second retaining portion. The first and second retaining portions mate with each other to maintain the first and second electrode frames as an integral structure, such that the first and second electrode frames retain the stack and the seal therebetween. The first porous transmission layer is at least partially disposed in the opening of the first electrode frame. Aside edge of the first porous transmission layer and the interior wall of the opening mate with each other in a shape-locked manner such that the first porous transmission layer is retained by the first electrode frame. The present application also provides an electrolytic apparatus comprising the aforementioned component. The component and the electrolytic apparatus according to the present application are easy to manufacture, assemble, and maintain.
Absstract of: JP2026156302A
0001 【課題】プロセス出口の生成ガスのメタン純度を高く保ち、熱量の安定化やスケールアップを可能にする共電解ガス合成装置の提供。 【解決手段】水蒸気と二酸化炭素を電気分解し合成ガスを生成する２以上の共電解部５－１、５－２と目的ガス合流部８と統合ガス合成反応部７と制御手段とを備える共電解ガス合成装置１であって、各共電解部５－１、５－２はカソード極に供給する水蒸気と二酸化炭素の流量を制御する流量制御手段と、水蒸気と二酸化炭素の合計流量に対する電気分解により生成される水素と一酸化炭素の合計流量の比率を電解利用率（α）として算出する電解利用率検知手段と水分離部と切替弁とを有し、制御手段は、電解利用率（α）に基づき各共電解部５－１、５－２に供給する水蒸気と二酸化炭素の流量比、流量のうち少なくとも１つを決定し、切替弁は合成ガスをベント排気ラインに通過する状態と目的ガス合流部８に通流する状態との切替が可能である。 【選択図】図１
Absstract of: JP2026156303A
0001 【課題】プロセス出口のメタン純度を高く保ち、熱量の安定化やスケールアップを可能にする電解メタネーションシステムの提供。 【解決手段】水蒸気及び二酸化炭素を電気分解して水素、一酸化炭素、水蒸気及び二酸化炭素を含むガスを生成する共電解部５と、水蒸気を電気分解して水素と水蒸気を含むガスを生成する水蒸気電解部９と、共電解部５のカソード極に供給する水蒸気及び二酸化炭素の各流量、水蒸気電解部９のカソード極に供給する水蒸気の流量を制御する流量制御手段と、共電解部５及び水蒸気電解部９の後段に水を分離する水分離部と、目的ガス合流部８と、目的ガス合流部８により集約されたガスをメタン化触媒に通じてメタネーションを行う統合メタン合成反応部７と、を備える電解メタネーションシステム１であって、水蒸気電解部９のカソード極の出口から統合メタン合成反応部７の出口までの経路に二酸化炭素を注入する二酸化炭素注入部１１を有する。 【選択図】図１
Absstract of: JP2026157077A
0001 【課題】水の使用量やエネルギー消費を抑え、装置構成を簡素化すること。 【解決手段】水電解装置１は、水電解セル１０の酸素排出口１０ｂ側にポンプ３２を設け、ポンプ３２により酸素を吸引することで、水電解セル１０内に水が供給される。 【選択図】図１
Absstract of: JP2026157283A
【課題】非腐食性フラックスを用いてＭＴＯＳ光触媒粒子を合成する技術を提供する。【解決手段】本開示の一態様に係る光半導体粒子の製造方法は、下記の一般式（Ｉ）で示される組成の光半導体粒子の製造方法であって、ＭａＴｉｂＯｃＳｄ…（Ｉ）前記光半導体粒子の原料とフラックス成分との混合物を焼成する工程を含み、前記フラックス成分が、以下の（ａ）～（ｄ）からなる群から選択される少なくとも１種である：（ａ）Ｐｂ酸化物、Ｂｉ酸化物、Ｂ酸化物、Ｖ酸化物及びＭｏ酸化物からなる群から選択される少なくとも１種の酸化物；（ｂ）ホウ酸塩無水物及びメタバナジン酸塩の少なくとも一方；（ｃ）Ｌｉ酸化物、Ｎａ酸化物、Ｋ酸化物及びＢａ酸化物からなる群から選択される少なくとも１種の酸化物と、前記（ａ）の酸化物との混合物；及び（ｄ）Ｌｉ酸化物、Ｎａ酸化物及びＫ酸化物からなる群から選択される少なくとも１種の酸化物と、Ｗ酸化物との混合物。【選択図】なし
Absstract of: JP2026154519A
【課題】異常放電の発生を抑制する。【解決手段】水素生成装置は、交流電圧を供給する電源および接地線の一方に接続された一対の第１の電極板と、一対の第１の電極板の間に設けられ、電源および接地線の他方に接続され、水素透過膜を含む一対の第２の電極板と、一対の第１の電極板と一対の第２の電極板との間に設けられ、第１の電極板と第２の電極板との間に印加される電圧に応じて発生する放電により水素原子を含む原料ガスが分解される一対の放電室と、一対の第２の電極板の間に設けられ、原料ガスを分解することにより生成される水素が第２の電極板を介して取り出される水素収集室と、一対の第１の電極板と一対の放電室との間に設けられた一対の誘電体板と、を有する平板型スタックを具備する。【選択図】図３
Absstract of: JP2026154548A
【課題】異常放電の発生を抑制する。【解決手段】水素生成装置は、第１の電極と第２の電極との間に設けられ、第１の電極と第２の電極との間に印加される電圧に応じて発生する放電により水素原子を含む原料ガスが分解される、放電室と、第２の電極に含まれる水素透過膜で囲まれ、原料ガスを分解することにより生成される水素が第２の電極を介して取り出される、水素収集室と、水素収集室に接続され、水素収集室からの水素のガスが流れる水素収集管と、を具備する。水素収集管は、放電を遮る誘電体を収容する。【選択図】図１
Absstract of: JP2026154649A
0001 【課題】海洋上の再生可能エネルギーを利用して、貯蔵や輸送が容易な合成燃料を製造するシステムを装備した海洋構造物を提供する 【解決手段】本発明の洋上合成燃料製造設備１は、洋上に浮かぶ浮体２に、水素を発生させる水電解システム３と二酸化炭素を空気中から直接回収する二酸化炭素回収システム４とを装備し、前記水電解システム３で得られた水素と前記二酸化炭素回収システム４で得られた二酸化炭素を原料として合成燃料を製造する合成燃料製造システム５を装備し、海洋上の再生可能エネルギーに由来する電力を電源とすることで合成燃料を製造する。 【選択図】図１
Absstract of: CN122856233A
0001 本申请属于阴离子交换膜电解水技术领域，尤其涉及一种基于铁镍钴基化合物的自支撑析氧催化剂及制备方法和应用；本申请提供的自支撑析氧催化剂包括三维多孔结构的金属基底及其原位负载的铁镍钴基化合物，可通过三维多孔结构的金属基底提升电解水制氢过程中的气泡扩散和质子传输，还构建三金属配位环境，有效地降低析氧反应的能垒，提升析氧催化活性，且铁镍钴基化合物和三维多孔结构的金属基底能够紧密连接，不易在高电流密度下发生机械脱落，从而可满足工业电解水制氢过程中，在高电流密度下的催化活性与稳定性要求，是高性能的自支撑析氧催化剂，且作为非贵金属催化剂，从而解决了现有技术中非贵金属析氧催化剂性能较低的技术问题。
Absstract of: MX2026009945A
The present invention provides an ammonia synthesis system utilizing a chemical compressor having an incorporated hydrogen storage alloy, comprising a water electrolysis cell configured to produce hydrogen, a chemical compressor configured to store and release the supplied hydrogen from the water electrolysis cell, and an ammonia synthesis part configured to receive the hydrogen from the chemical compressor and synthesize ammonia, wherein the chemical compressor includes a hydrogen storage portion having the hydrogen storage alloy therein, a cooling portion configured to cool the hydrogen storage portion, a heating portion configured to heat the hydrogen storage portion, and one control part configured to control the operations of the cooling part and the heating part, the heating part including a plurality of different independently controllable heating sources, and the control part controls the cooling part to cool the hydrogen storage alloy of the hydrogen storage part when the hydrogen is stored in the hydrogen storage part and controls at least one of the plurality of heating sources of the heating part to heat the hydrogen storage alloy when the hydrogen is released from the hydrogen storage part, and a method for synthesizing ammonia using the ammonia synthesis system.
Absstract of: CN122856254A
0001 本发明公开了一种基于NS‑NiMoO<4>/NF和N‑NiMoO<4>/NiS/NF的全分解水电催化剂的制备方法，所述制备方法首先制备得到NiMoO<4>/NF，然后进一步转化为N‑NiMoO<4>/NF，再在N‑NiMoO<4>/NF的基础上分别通过高温煅烧硫化和水热反应硫化，制备得到NS‑NiMoO<4>/NF和N‑NiMoO<4>/NiS/NF。本发明所制备的NS‑NiMoO<4>/NF和N‑NiMoO<4>/NiS/NF可以分别高效地作为电催化分解水的阴极和阳极发生HER和OER反应，材料制备方法简单，成本低，适用大面积推广应用。
Absstract of: CN122850270A
本发明涉及光催化技术领域，公开了一种双功能肖特基异质结光催化剂及其光催化产氢耦合苯甲醇选择性氧化的制备方法，所述光催化剂由ZnCdS纳米颗粒原位生长负载于二维片状双金属钴镍聚酞菁CoNiPPc表面构成；所述ZnCdS纳米颗粒粒径为10～20 nm，均匀分布于CoNiPPc纳米片表面；所述ZnCdS功函数为5.32 eV，所述CoNiPPc功函数为6.49 eV，两种材料接触后电子由ZnCdS向CoNiPPc定向迁移，形成由ZnCdS指向CoNiPPc的内建电场及肖特基势垒；本发明具有技术条件温和、绿色无污染的效果。
Absstract of: CN122856277A
本发明提供了一种碱性电解水制氢的气液分离回流方法，属于电解水制氢技术领域，包括：持续开启分离器的进液口的进液阀；在聚泡期关闭分离器的排气阀和取液阀，其中所述分离器的排气阀设置在顶部，所述分离器的取液阀包括上取液口和下取液口对应的取液阀，所述上取液口的取液阀设置在下取液口的取液阀上方且间隔固定距离；在静置期内开启排气阀并关闭取液阀，其中所述静置期中对所述分离器中的气体进行排气；在取液期内开启取液阀；其中所述取液期内对所述分离器中的液体进行取液回流；在复位期内关闭取液阀并全开排气；循环依次进行聚泡期、静置期、取液期和复位期的操作以实现分离器的气液分离回流。本发明能够提升气液分离的效率。
Absstract of: CN122850268A
0001 本发明公开了一种CoS掺杂的NH<2>‑MIL‑125@TiO<2>催化剂、制备方法和应用，属于金属氧化物催化剂技术领域，包括以下步骤：将氨源溶解在有机溶剂中，加入钛源，经水热反应后得到NH<2>‑MIL‑125；将NH<2>‑MIL‑125分散于钴源和硫源的水溶液中，在密闭环境中烘烤反应得到CoS掺杂的NH<2>‑MIL‑125@TiO<2>催化剂。本发明以NH<2>‑MIL‑125为前驱体，通过一步溶剂热法成功制备了无定形CoS掺杂的NH<2>‑MIL‑125@TiO<2>复合光催化剂，合成方法简单高效、成本低廉。CoS可以调控材料的能带结构与界面电子传输能力，拓宽可见光响应范围，显著抑制光生电‑空穴对的复合。光催化产氢测试结果显示，适量CoS掺杂可使复合催化剂产氢速率得到数量级提升，且循环稳定性显著优于纯NH<2>‑MIL‑125及部分转化为TiO<2>的NH<2>‑MIL‑125@TiO<2>复合材料。
Absstract of: CN122856231A
0001 本发明公开了一种钌钛双金属氧化物自支撑电极的制备方法及其应用，属于清洁能源制备技术领域。该方法包括以下步骤：对钛毡进行清洗后，置于碱溶液中进行水热预处理；将钌盐和钛盐溶解于含盐酸的溶液中，配制成前驱体溶液；将预处理后的钛毡置于前驱体溶液中，经水热反应在钛毡表面原位生成氢氧化物前驱体；最后在空气氛围下煅烧，即得一体化自支撑RuTiO
Nº publicación: CN122853465A 02/10/2026
Applicant:
中国石油化工股份有限公司中石化（大连）石油化工研究院有限公司
Absstract of: CN122853465A
0001 本发明公开了一种CoNiCu金属氧化物催化剂的制备方法，包括如下内容：（1）将钴盐、镍盐、铜盐按一定比例溶于水中得到溶液A；（2）将配位剂溶于溶剂中得到溶液B；（3）在一定温度下将溶液A与溶液B按一定比例充分混合得到溶液C；（4）向溶液C中加入碱性沉淀剂，在一定条件下反应，得到混合液；（5）将步骤（4）得到的混合液进行过滤、洗涤、干燥、焙烧，得到CoNiCu金属氧化物催化剂。本发明方法制备的催化剂一步法即可合成，在氨硼烷的水解析氢反应中具有较高的催化活性。
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