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A hydrogen buffer tank for improving facility integrity and produce high hydrogen

Resumen de: KR20250030279A

본 발명은 수전해 설비 장치로부터 생산된 수소로부터 산소 및 수분을 제거하는 고순도 수소를 생산하는 수소 저장탱크는, 수전해 설비 장치로부터 생산된 수소를 정화하는 수소 정화장치, 수소 저장탱크에 수소를 공급하는 수소 정화장치를 연결하는 수소 공급라인, 수소 공급라인의 단부에는 수소 저장탱크의 중심과는 벗어난 편심 위치로 배치되는 수소 공급라인(210)의 인입배관, 수소 저장탱크에 질소 퍼지라인을 통하여 질소(N2)를 유입시키는 질소 퍼지장치, 응축된 응축수를 수소 저장탱크의 하부에서 배수 밸브를 구비하는 배수 라인을 통하여 배출하는 배수구, 수소 저장탱크의 상부에는 가스 배출용 배출라인이 구비된 가스 배출구 및 수소 저장탱크 생산된 고순도 수소를 가압하여 저장하는 가압기 또는 연료전지 장치로 이송시키는 고순도 수소 이송라인을 포함하는 것을 특징으로 하는 수소 저장탱크에 관한 것이다.

A SEPARATOR FOR ALKALINE WATER ELECTROLYSIS

Resumen de: AU2023260588A1

A separator for alkaline electrolysis (1) comprising a porous support (10), a first porous layer (20b) provided on one side of the porous support and a second porous layer (30b) provided on the other side of the porous support, wherein the first and the second porous layer are partially impregnated into the porous support and each have an overlay thickness d1 and d2 respectively, said overlay thickness being defined as the part of each porous layer which is not impregnated into the porous support, characterized in that a) d1 is smaller than the overlay thickness of the second porous layer (d2), and b) d1 is at least 20 µm.

ELECTRODE, MEMBRANE ELECTRODE ASSEMBLY, ELECTROCHEMICAL CELL, STACK, AND ELECTROLYZER

Resumen de: EP4516965A2

An electrode according to an embodiment including a support and a catalyst layer provided on the support and alternately stacked with sheet layers and gap layers. The catalyst layer is for electrolysis. The catalyst layer comprises a first metal which is one or more elements selected from the group consisting of Ir, Ru, Pt, Pd, Hf, V, Au, Ta, W, Nb, Zr, Mo, and Cr, and a second metal which is one or more elements selected from the group consisting of Ni, Co, Mn, Fe, Cu, Al, and Zn. The catalyst layer comprises a first region and a second region. The first metal in the first region is more oxidized than the first metal in the second region. A ratio of the second metal in the first region is greater than the ratio of the second metal in the second region.

STACK-TYPE ELECTROLYZER FOR OBTAINING HYDROGEN AND OXYGEN FROM THE ELECTROCATALYTIC BREAKDOWN OF A WATER-BASED ELECTROLYTE

Resumen de: EP4516964A1

The invention relates to a stack-type electrolyzer for obtaining hydrogen and oxygen, provided with lateral closure caps (2) and cells (3), each cell (3) comprising: a current collector anode plate (5a) and cathode plate (5b); one porous transport layer (7,8) comprising a conductive porous material that is a hard magnet, a semi-hard magnet or a soft magnet, a first catalysts for the anode plate (5a) and a second catalysts for the cathode (5b) plate; and a first arrangement of magnets (6), that are hard or semi-hard, attached to the current collector anode plate (5a), and/or to the current collector cathode plate (5b).

METHOD AND PLANT FOR OBTAINING A HYDROGEN-CONTAINING PRODUCT USING AMMONIA

Resumen de: EP4516728A1

Die Erfindung betrifft Verfahren und eine Anlage (100) zur Herstellung eines Wasserstoff enthaltenden Produkts, wobei Ammoniak (2) in einem Ammoniakcracker (20), dem Wärme zugeführt wird, umgesetzt wird, wobei der Ammoniakcracker (20) ein Katalysatorbett mit mindestens zwei Katalysatorsegmenten (20a, 20b, 20c) aufweist, wobei in einem ersten Katalysatorsegment (20a) ein Teil des Ammoniaks (2) unter Verwendung eines ersten Katalysators bei einer ersten Mindesttemperatur umgesetzt wird und in einem zweiten Katalysatorsegment (20b), das stromabwärts des ersten Katalysatorsegments (20a) angeordnet ist, ein weiterer Teil des Ammoniaks (2) unter Verwendung eines zweiten Katalysators bei einer zweiten Mindesttemperatur umgesetzt wird.

System and process for cracking ammonia

Resumen de: GB2633197A

Producing hydrogen by catalytically cracking ammonia 14 comprises: a main ammonia cracking reactor 4 with catalyst 8 and a fuel combustion zone 10 surrounding the reaction tubes 6 to generate a main hydrogen containing gas stream 11, and an auxiliary ammonia cracking reactor 12 to generate an auxiliary hydrogen containing gas stream 16. A portion 18 of the auxiliary hydrogen containing gas stream 16 is directed to the ammonia cracking catalyst 8 of the main reactor 4 and a portion 20 of this gas stream 16 is directed to the combustion zone 10 of the main ammonia cracking reactor 4.

PHOTOCATALYTIC WATER SPLITTING WITH SEPARATE H2 AND O2 PRODUCTION

Resumen de: AU2023262052A1

A water splitting system includes a hydrogen production chamber including a hydrogen production port, an oxygen production chamber including an oxygen collection port, an ion exchange membrane coupling the hydrogen production chamber and the oxygen production chamber, and a photocatalytic structure including a first catalytic portion disposed in the hydrogen production chamber and a second catalytic portion disposed in the oxygen production chamber. The first catalytic portion is configured for production of hydrogen via the hydrogen production port. The second catalytic portion is configured for production of oxygen via the oxygen production port.

SYSTEM FOR CAPTURING AND RECYCLING CARBON DIOXIDE AND PRODUCING HYDROGEN FOR CEMENT MANUFACTURING FACILITY

Resumen de: EP4516383A1

The present invention relates to a system for capturing and recycling carbon dioxide and producing hydrogen for a cement manufacturing facility. An embodiment of the present invention is characterized by comprising: a preheater that has a plurality of stages of cyclones arranged in series in a vertical direction and receives and preheats a cement raw material; a calciner that calcines the cement raw material preheated by the preheater; a kiln that fires the cement raw material calcined in the calciner; an exhaust line, connected to the cyclones of the preheater, that discharges exhaust gas discharged from each of the calciner and the kiln to the outside; a reactor, disposed on the exhaust line, that receives the exhaust gas and reacts the exhaust gas with a basic alkali mixed solution to capture carbon dioxide in the exhaust gas, collect a reactant including the captured carbon dioxide, and separate a carbon dioxide reactant and a waste solution from the reactant; and a hydrogen generator that generates hydrogen gas by receiving the carbon dioxide reactant separated from the reactor.

CARBON DIOXIDE CAPTURE AND CARBON RESOURCE UTILIZATION SYSTEM, FOR FUEL CELL, USING BOIL-OFF GAS GENERATED FROM LIQUEFIED NATURAL GAS

Resumen de: EP4517889A1

A carbon dioxide capture and carbon resource utilization system, for a fuel cell, using boil-off gas (BOG) generated from liquefied natural gas (LNG) of the present invention comprises: a liquefied natural gas storage which stores liquefied natural gas therein; a hydrocarbon reformer which generates a gas mixture containing hydrogen and carbon dioxide by reacting boil-off gas generated from the liquefied natural gas storage with water introduced from the outside; a fuel cell which receives hydrogen generated from the hydrocarbon reformer to generate electric power; a reactor which receives carbon dioxide generated from the hydrocarbon reformer to react the carbon dioxide with a basic alkali mixture solution, thereby capturing carbon dioxide, collects a reaction product containing the captured carbon dioxide, and separates a carbon dioxide reaction product and a waste solution from the reaction product; and a hydrogen generator which generates hydrogen by using the carbon dioxide reaction product separated from the reactor and supplies the generated hydrogen to the fuel cell.

NEW ENERGY HYDROGEN PRODUCTION SYSTEM AND CONTROL METHOD THEREFOR

Resumen de: EP4516969A1

The present application provides a new energy hydrogen production system and a control method therefor. In the new energy hydrogen production system, a new energy input module supplies power to electrolytic cells by means of a power conversion module; and a control system of the new energy hydrogen production system is used for controlling, according to the power of the new energy input module, the power conversion module to work, such that among N electrolytic cells in an operation state, at least N-1 electrolytic cells work in a preset load range. The preset load range is a corresponding load range having the highest system efficiency in an electrolytic cell working range division result prestored in the control system, i.e., the present application can enable as many electrolytic cells as possible to respectively work in the preset load range having the highest system efficiency, and therefore, the system efficiency is improved and is optimized to the extent possible.

Process, reactor, and system for cracking ammonia

Resumen de: GB2633044A

A process for cracking ammonia (NH3) to produce hydrogen (H2), comprising feeding an ammonia gas input stream 4 to an ammonia cracking reactor 2 to crack the ammonia gas 4 to generate a hydrogen containing gas stream 8, wherein the cracking reactor 2 comprises one or more reaction tubes 6 containing ammonia cracking catalyst and one or more burners 12 for combusting a mixture of an oxidant-containing gas 18 and a fuel 10 in a fuel combustion zone 14 surrounding the one or more reaction tubes 6 to provide heat energy to support the cracking of ammonia, wherein the oxidant-containing gas 18 is pre-heated to at least 300°C prior to being fed to the one or more burners 12. Further defined are an ammonia cracking reactor for implementing the process, and a system comprising the reactor and a purification unit, wherein the purification unit is configured to generate a purified hydrogen stream and a waste gas stream which is directed to the combustion zone of the ammonia cracking reactor to at least partially fuel the reactor. The oxidant-containing gas may be air, oxygen-enriched air or oxygen, and may be pre-heated by a heat-exchanger within a flue duct of the reactor.

Green hydrogen production

Resumen de: GB2633015A

A method for isolating the portion of a chemical product of a chemical reaction produced using energy from renewable sources is described. The chemical reaction requires an energy input derived from renewable sources, non-renewable sources, or a combination of such sources. The method comprises obtaining a total chemical product of the chemical reaction; providing (i) the amount of energy input into the chemical reaction derived from renewable sources and (ii) the amount of chemical product produced by the chemical reaction; using (i) and (ii) to determine the portion of the total chemical product produced using energy from renewable sources. The portion of chemical product produced using energy from renewable sources is separated from the total chemical product. Also provided is an apparatus to produce at least one chemical product able to separate the portion of the chemical product produced using energy from renewable sources from the chemical product output.

WIND-POWERED HYDROGEN PLANT

Resumen de: EP4518077A1

The invention is about a wind-powered hydrogen plant (1) with a wind turbine (2) electrically coupled to an electrolysis system (3) with rows of electrolyser stacks (4), the wind turbine (2) comprising a generator (5) with a rotor (6) and a stator (7), the stator (7) being divided into winding segments (8) with an electrical insulation between individual winding segments (8), the number of which is a multiple of three, each group of three winding segments (8) forming a three-phase system connecting to one of individual rectifier circuits (9), and the electrolysis system (3) comprising individual DC/DC converters (10), each connected to a row of electrolyser stacks (4), wherein a DC output power of all individual rectifier circuits (9) is kept separated and the individual rectifier circuits (9) are each directly connected to one of the individual DC/DC converters (10). The invention also relates also to a method for converting wind energy into electrical energy for the operation of an electrolysis system (3).

A water electrolysis system using a waste heat of a hydrogen produced from a electrolysis stack

Resumen de: KR20250028733A

본 발명의 수소의 폐열을 활용하는 수전해 스택 폐열 시스템의 수전해 스택은, 정화장치로부터 정화된 정화수가 공급되어 산소(O2)와 수소(H2)로 분리하고, 수전해 스택에서 분리 생산된 산소와 수분은 응축기를 거쳐서 응축수는 정화수로 공급되고, 산소는 배출구를 통하여 외부로 배출되고, 수전해 스택에서 분리 생산된 수소는 수소에 포함된 산소와 산소제거기에서 촉매반응으로 산소와 수소가 결합되어 수분(물)이 생성하고, 생성된 수분은 수소와 함께 드라이어에 공급되고, 수분은 드라이어에 구비된 흡착재에 흡착되고, 드라이어의 흡착재에 흡착된 수분은 가열 건조되어 제거되고, 순수 수소만 수소 저장탱크에 저장되며, 수소 공급 파이프라인이 산소제거기와 드라이어가 설치된 위치에 배치되는 것을 특징으로 하는 수소의 폐열을 활용하는 수전해 스택 폐열 시스템에 관한 것이다.

一种Ag/MnO2碱性析氧催化剂及其制备方法和应用

Resumen de: CN119553311A

本发明公开了一种Ag/MnO2碱性析氧催化剂及其制备方法和应用，属于催化剂技术领域。催化剂的制备方法包括：(1)将锰盐、银盐、阴离子表面活性剂共溶于溶剂中，经过水热反应制得Ag/MnO2前驱体；(2)对Ag/MnO2前驱体进行煅烧，制得Ag/MnO2碱性析氧催化剂。本发明催化剂采用非贵金属材料制成，原料来源丰富且成本低廉，可以降低催化剂的生产成本；另外，催化剂的制备方法操作简单，易于大规模生产。本发明催化剂中Ag纳米颗粒锚定在MnO2表面有助于提高复合催化剂的比表面积，有助于拓展电化学反应区域，其在碱性电解液中具有良好的OER催化活性和稳定性。

海水原位制氢方法

Resumen de: CN119553314A

本发明属于电解制氢技术领域，具体涉及一种海水原位制氢方法。所述方法包括相变传质槽，相变传质槽包括海水区（1）、相变传质层（2）和电解质区（3）；海水由海水槽出料，依次经预过滤器、一级换热器、二级换热器，进入海水区（1）进行相变传质；电解质由电解质混合槽进入电解质区（3）；相变传质在相变传质层（2）处进行，相变传质层（2）为IPN膜；电解质区（3）出料至电解槽进行电解制氢。本发明中利用聚乙烯醇和聚酰亚胺制备IPN膜，通过一系列改性措施例如氟化等，确保IPN膜兼具高疏水性和良好的水蒸气透过性，以提高电解制氢的效率；另外IPN膜制备操作简便，良品率高。

一种由钛金属粉末制备的纳米级Ti3O、制备方法及其在制备酸性析氧电催化剂中的应用

Resumen de: CN119551715A

一种由钛金属粉末制备的纳米级Ti3O、制备方法及其在制备酸性析氧电催化剂中的应用，属于金属粉末加工技术领域。本发明以纳米钛金属粉末为原料，在适当的气氛、反应温度和反应时间条件下将其可控地、选择性地氧化成纳米级Ti3O，制备的纳米级Ti3O具有良好的导电性和高的比表面积。本发明具有工艺简单、设备和操作要求低、产品纯度高、一致性高和易于批量制备的特点，所制备的纳米级Ti3O能够作为多种贵金属的载体，从而制备得到贵金属核壳结构的酸性析氧电催化剂M@Ti3O，M＝Pt、Ir、Rh或Ru，所制备的电催化剂具有优异的酸性析氧反应活性和稳定性，在质子交换膜水电解槽中具有较大的应用潜力。

一种Bi2MoO6/VC/C-C复合光电催化剂及其制备方法和应用

Resumen de: CN119549172A

本发明公开了一种Bi2MoO6/VC/C‑C复合光电催化剂及其制备方法，制备方法包括：分别制备Bi2MoO6前驱体和VC粉体，将Bi2MoO6前驱体和VC粉体分散在去离子水中加入聚乙烯醇得到前驱体溶液，将前驱体溶液置于坩埚中于140～180℃保温5～15min后，将清洗后的C‑C基底放入溶液中浸渍1～10min，取出C‑C基底，干燥后即可得到所需的Bi2MoO6/VC/C‑C光电催化剂；本发明所制备的Bi2MoO6/VC/C‑C复合光电催化剂其析氧效率得到了有效提升，且整个制备工艺流程简单、条件易控，生产成本较低，易于产业化生产，所制备的产物纯度较高，结晶性好。

一种Ag2S/Mn0.5Cd0.5S复合催化剂及其制备方法和应用

Resumen de: CN119549165A

本发明属于压电光催化领域，具体涉及一种Ag2S/Mn0.5Cd0.5S复合催化剂及其制备方法和应用。通过水热合成法制备Mn0.5Cd0.5S纳米颗粒和Ag2S，最后采用浸渍法使二者复合形成异质结，制备Ag2S/Mn0.5Cd0.5S复合催化剂。该催化剂在太阳光照射和超声波振动协同作用下用于压电光催化产H2和CO2还原。本发明催化剂合成方法简单，绿色无污染，操作性强。所制备的催化剂具有丰富的活性位点和优异的催化效果。

一种低压比的电解水制氢能量优化热泵系统及方法

Resumen de: CN119554799A

本发明属于电解水制氢技术领域，涉及一种低压比的电解水制氢能量优化热泵系统及方法。包括氢氧气液分离单元、热泵压缩机和膨胀机，氢氧气液分离单元通过氢气冷却器连接氢气干燥器；氢氧气液分离单元通过循环冷却水管路连接热泵吸热器，氢气冷却器通过制冷剂管路连接制冷机，所述氢气干燥器分别通过热水管路和蒸汽管路连接蒸汽发生器；所述热泵压缩机的出口通过热热泵工质管路依次连接蒸汽发生器和膨胀机的入口，所述膨胀机的出口通过冷热泵工质管路依次连接制冷机、热泵吸热器和热泵压缩机的入口；所述热热泵工质管路和冷热泵工质管路均连接回热器。本发明有利于降低热泵压缩机的压比，有利于丰富热泵工质的选择范围，提高系统的能源利用率。

析氧反应催化剂及其制备方法和应用

Resumen de: CN119553306A

本公开提供了一种析氧反应催化剂及其制备方法和应用，属于催化剂技术领域和电化学技术领域。该制备方法包括：将铱盐、钌盐、钨盐、碱金属硝酸盐和碳氮材料的混合物进行空气煅烧，得到析氧反应催化剂。

运转支援装置、运转支援方法和运转支援程序

Resumen de: AU2023306752A1

Provided is an operation support device comprising: a calculation unit that calculates the production amount of products per hour, which satisfies the target production amount of products to be produced over a predetermined period of time by a plurality of electrolyzers, on the basis of predetermined hourly electricity costs or power consumption in the course of the operation of the plurality electrolyzers operating in parallel; and an identification section that identifies an operating electrolyzer among the plurality of electrolyzers on the basis of the production amount calculated by the calculation unit. The calculation unit may calculate a production amount that satisfies a target production amount of products over a period of time and minimizes electricity cost or power consumption over a period of time.

一种空间电荷分离型氮化碳晶体的制备方法及其应用

Resumen de: CN119551634A

本发明公开了一种空间电荷分离型氮化碳纳米晶体的制备方法及其应用。利用聚合物氮化碳脱氨聚合的特点，设计了在半封闭条件下加速氮化碳脱氨聚合的合成工艺，制备得到了高结晶性的具有空间电荷分离的氮化碳纳米晶体，可促进光生载流子的分离与迁移，提高光生载流子的利用效率。该氮化碳纳米晶体可作为催化剂用于光催化分解水制氢的应用中。本发明氮化碳纳米晶体制备的步骤简单，反应条件温和，可重复性高，易合成，具有一定的工业化应用前景。

一种1T相硫化钼的制备方法及其应用

Resumen de: CN119551725A

本发明公开了一种1T相硫化钼的制备方法及其应用，所述方法包括以下步骤：在外加磁场作用下，以四水合钼酸铵、硫脲分别为钼源和硫源，六水合硝酸钴为引发剂，通过一步水热法在反应过程中生成1T相硫化钼。所述的1T相硫化钼用于制备析氧和析氢双功能电极。本发明利用磁场和Co原子，将水热合成产物从2H相硫化钼转变为1T相硫化钼，制备了具有高导电性和优异催化性能的HER和OER双功能催化剂。本发明方法简单经济，效果显著，解决了1T相硫化钼催化剂制备困难的问题，在电化学催化领域具有极大的应用价值。

一种利用低温热源发生蒸汽的高温电解制氢方法及装置

Nº publicación: CN119553296A 04/03/2025

Solicitante:

中国石油天然气股份有限公司

Resumen de: CN119553296A

本发明公开了一种利用低温热源发生蒸汽的高温电解制氢方法及装置。所述方法包括：ⅰ)通过热泵系统将100℃以下的低温热源携带的低品位热能转化为热泵工质携带的100℃以上的热能；ⅱ)以所述高品位热能作为主要供热来源，将液态水加热气化成为水蒸汽；ⅲ)电解所述水蒸汽制取氢气。该方法解决了因高温电解制氢系统内部余热不足，无法独立产生蒸汽的问题。既能产生高温电解制氢需要的蒸汽，又能高效利用地热、工业余热等低品位热能，为地热、工业余热等低品位能源向氢能等高品位能源的高效转化和利用提供了一种新的解决思路。拓宽了高温电解制氢技术的应用场景，促进了高温电解制氢技术的发展，具有广阔的应用空间和节能增效的优势。