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524
results.
Updated on
17/12/2025 [07:00:00]
Results 300 to 325 of 524
Absstract of: KR20250160293A
본 발명의 일 실시예에 따른 암모니아를 이용한 메탄올 생산 방법은, a) 선박에 저장된 암모니아가 접안 부두에 정차된 탱크로리로 운송 및 저장되는 단계; b) 상기 탱크로리에 저장된 암모니아의 일부가 친환경 연료로서 발전소로 공급된 후에 상기 발전소의 발전에 사용되는 단계; c) 상기 발전소가 암모니아를 기반으로 발전하는동안 생성되는 이산화탄소를 포집, 분리 및 액화시킨 후 저장하는 단계; d) 상기 발전소로 공급되지 않고 상기 탱크로리에 남은 나머지 암모니아가 수소 생산소로 운송되며, 상기 수소 생산소에서 수소와 질소로 분해됨으로써 수소를 생산하는 단계; 및 e) 메탄올 생산소가 상기 c) 단계에서 저장된 이산화탄소와, 상기 d) 단계에서 생산된 수소를 이용하여 메탄올을 생산하는 단계;를 포함할 수 있다.
Absstract of: CA3271574A1
The invention relates to the coating of anion exchange membranes (AEM) with catalytically active substances. The CCM thus obtained are used in electrochemical cells, especially for alkaline water electrolysis. It was an object of the invention to specify a process for producing a CCM by direct 5 coating which maintains the necessary planarity of the AEM and ideally avoids the use of lost films and eschews CMR substances. Swelling shall also be minimized. The process shall also be performable with fluorine-free ionomers. The invention is based on the finding that the addition of certain organic substances has the result that the AEM swells only to a small extent, if at all (antiswelling agent). It has surprisingly been found that substances suitable as antiswelling agents 10 are identifiable by their solubility behaviour, more particularly by their Hansen parameters. Fig. 4 accompanies the abstract
Absstract of: JP2025121917A
To provide a method of operating a solid oxide electrolysis cell (SOEC) system at partial load.SOLUTION: A method is provided wherein the SOEC system includes a plurality of branches electrically connected in parallel, and each branch includes at least one SOEC stack. The method includes determining a thermally neutral target voltage below which operation is endothermic and above which operation is exothermic; and executing pulse width modulation current control by cycling an ON phase and an OFF phase for each branch such that the SOEC system operates at an average operating power equal to a chosen percentage of the operating power at the thermally neutral target voltage. In the ON phase, all of the SOEC stacks in a branch operate at the thermally neutral target voltage, and in the OFF phase, all of the SOEC stacks in the branch operate at 0% power. Each branch is configured to be operated independently of the other branches.SELECTED DRAWING: Figure 1
Absstract of: AU2024237545A1
A method for generating and treating a two-phase outflow from one or more pressurised electrolyser stacks which are adapted to electrolyse water into hydrogen and oxygen, whereby a pump supplies a catholytic fluid flow from one first gas liquid gravitational separator vessel to the electrolyser stacks and whereby a further pump supplies an anolytic fluid flow from one second gas liquid gravitational separator vessel to the electrolyser stacks, and whereby at least one cyclone type gas liquid separator receives combined outflows from the catholytic chambers and/or receives combined outflows from anolytic chambers respectively inside corresponding gravitational gas liquid separator vessel whereby further, the at least one cyclone type gas liquid separator separates the gas from the liquid along a generally horizontal cyclonic rotation axis inside the gas liquid gravitational separator vessel. An electrolyser system is also provided.
Absstract of: AU2024214359A1
Feedwater preparation system in a water electrolyser adapted to produce hydrogen and oxygen in one or more pressurised electrolyser stacks (2) using alkaline water and comprising a product gas conditioning system that has a safety valve out-blow material stream pipe (11) which is connected to a feedwater vessel (9), and/or has a depressurisation stream pipe (31) from a gas cleaning vessel which is connected to the feedwater vessel (9).
Absstract of: LT2024518A
The method described in the invention is aimed at drying moist hydrogen obtained through alkaline electrolysis, containing up to 2000 ppm of water. This is achieved through the utilization of complex processes involving water hydrolysis, hydrogen storage, and compression, employing metal hydrides. During water hydrolysis, water vapor that are present in the hydrogen gas actively reacts with a mixture of activated aluminum and NaOH, splitting into hydrogen and oxygen. Oxygen and a portion of hydrogen combine with activated aluminum to form aluminum hydroxide, while the remaining hydrogen, along with the overall hydrogen stream, enters the metal hydride container. There, upon interaction with magnesium-based powders, metal hydrides are formed, capable of preserving hydrogen from several minutes to several years without significant hydrogen loss. Using the described method, hydrogen is dehydrated from 2000 ppm of water to no more than 5 ppm of water. Dry hydrogen can successfully react with magnesium-based metals for up to 500 cycles, with absorbed/desorbed hydrogen losses not exceeding 5 %. During the decomposition of metal hydrides, the resulting hydrogen is more than 99.999 % pure and, upon release, generates pressure of up to 30 bars. The waste heat generated in industrial processes is utilized to optimize the hydrolysis and formation/decomposition processes of metal hydrides, thereby creating additional added economic and ecological value.
Absstract of: US2025333854A1
A water electrolysis system that generates hydrogen and oxygen by electrolysis of water includes a water electrolysis cell including an anode, a cathode, and an electrolyte membrane sandwiched between the anode and the cathode, and a control device that controls electric power supplied to the water electrolysis cell, wherein the control device performs a potential changing process of changing a potential of the anode either or both of upon starting of the water electrolysis system and during continuous operation of the water electrolysis system, and the potential changing process includes a potential lowering process of lowering the potential of the anode to a predetermined potential.
Absstract of: JP2025167806A
【課題】水素の生成効率を向上させた上で、水電解装置の劣化を抑制する。【解決手段】水電解システムは、水の電気分解を行う水電解部と、水電解部に供給される水を貯蔵するタンクと、タンクに水を供給する供給部と、タンクに貯蔵された水量を取得する水量取得部と、タンクに貯蔵された水の温度を取得する温度取得部と、タンクに貯蔵された水量と水の温度に応じて、供給部からタンクに供給される水量を制御する制御部と、を備え、制御部は、タンク内の水量が第１水量未満の場合に、タンク内の水量が第１水量よりも多い第２水量になるまで供給部から水を供給し、タンク内の水量が第１水量以上、かつ、タンク内の水の温度が基準温度よりも高い場合に、タンク内の水量が第２水量よりも多い第３水量になるまで供給部から水を供給する。【選択図】図１
Absstract of: JP2025167807A
【課題】水電解装置の劣化を抑制しつつ、高い水素生成効率を実現する。【解決手段】水電解システムは、水の電気分解を行う水電解部と、水電解部に電力を供給する電力供給部と、電力供給部から水電解部に供給される電流の大きさを検出する電流検出部と、電気分解される水の温度である水温度を取得する温度取得部と、取得された水温度が予め設定された上限温度以下となるように、電力供給部から水電解部に供給される電力を制御する制御部と、を備え、制御部は、電流検出部により検出された検出電流の増加に応じて、上限温度を低下させる【選択図】図１
Absstract of: WO2025230139A1
A battery system comprising a cell structure for a solid oxide cell, a sealing structure applied thereto, and manufacturing methods therefor are disclosed. The disclosed battery system comprising a cell structure for a solid oxide cell may comprise a stack structure, wherein the stack structure can include: a first separation plate; a second separation plate spaced apart from the first separation plate; a cell structure for a solid oxide cell, which is disposed between the first and second separation plates and comprises a fuel electrode corresponding to an anode, an air electrode corresponding to a cathode, and an electrolyte layer disposed between the fuel electrode and the air electrode; an air electrode current collector disposed between the cell structure and the second separation plate; a first sealing gasket disposed between the first and second separation plates so as to encompass the outer surface of the cell structure; and a second sealing gasket disposed between the first and second separation plates so as to encompass the outer surface of the air electrode current collector.
Absstract of: CN120239739A
The invention relates to a device/method for capturing/converting CO2. The invention relates to a process for the production of CO and water, comprising/using a CO2 capture unit (2) that produces CO2 (3), a water electrolysis unit (5) that converts water (4) into oxygen (6) and hydrogen (7), an RWGS unit (8) that treats CO2 with hydrogen (7) and produces an RWGS gas (9) enriched in CO and water, an FT unit (13) that converts the RWGS gas and produces an FT effluent (14), a first separation unit (15) that treats the FT effluent and produces a hydrocarbon effluent (17) and a gas effluent (33), a second separation unit (34) separating the effluent gas into a CO2-lean gas (18) and a CO2-rich gas (35) fed to the RWGS unit, a partial oxycombustion unit (28) oxidizing the CO2-lean gas and producing CO fed to the FT unit, a hydrogen unit (20) treating the hydrocarbon effluent to produce a hydrocarbon fraction (21).
Absstract of: AU2024245553A1
The invention relates to the coating of anion exchange membranes with catalytically active substances. The catalytically actively coated anion exchange membranes are used in electrochemical cells, especially for water electrolysis. The problem addressed by the invention is that of specifying a process for coating an anion exchange membrane which can be conducted at relatively low temperatures. This problem is solved by a swelling step. Aside from the swelling step and the processing temperature, the sequence of the process according to the invention resembles a decal process. However, the use of the partly liquid swelling agent means that the process according to the invention can be considered to be a wet process. The process enables the processing of anion-conducting polymers at moderate temperatures. The anion-conducting polymers may be present in the anion exchange membrane and/or in the composition that is applied to the anion exchange membrane. The advantage of the process according to the invention is that it can be conducted at comparatively low temperatures, namely below 100°C.
Absstract of: WO2024160929A1
An electrode for use in the electrolysis of water under alkaline conditions, comprising a nickel metal substrate, a ceramic material with a perovskite-type structure comprising an oxide of at least one metal selected from among lanthanides including lanthanum, cerium and praseodymium, where said ceramic material is forming a coating on said nickel metal substrate, and metal nanoparticles are socketed into the said ceramic material. The metal nanoparticles facing the alkaline solution have electrochemical activity, whereas the metal nanoparticles facing the said metal substrate form an anchoring points between the metal substrate and the said ceramic material.
Absstract of: FR3161913A1
Procédé de fabrication d’une céramique nanoarchitecturée poreuse (200) pour électrode de cellule d’électrolyseur (100), notamment pour électrode de cellule d’électrolyseur à haute température (également connue selon l’acronyme EHT), le procédé comprenant les étapes suivantes de : fourniture d’une résine comprenant un photoréactif polymérique, un solvant, par exemple un solvant organique, et une charge comportant au moins un précurseur minéral de la céramique, impression 3D de la résine selon un motif prédéterminé de sorte à former un squelette nanoarchitecturé poreux (300), par exemple sous forme de nid d’abeilles ou sous forme tétrakaidécahédrale, etfrittage du squelette nanoarchitecturé poreux (300) de sorte à obtenir une céramique nanoarchitecturée poreuse (200). Figure 4
Absstract of: US2025236972A1
Electrolyzer for production of hydrogen gas and comprising a stack of bipolar electrodes sandwiching ion-transporting membranes between each two of the bipolar electrodes. Each bipolar electrode comprises two metal plates welded together back-to-back forming a coolant compartment in between and having a respective anode surface and an opposite cathode surface, each of which is abutting one of the membranes. The plates are embossed with a major vertical channel and minor channels in a herringbone pattern for transport of oxygen and hydrogen gases. The embossed herringbone pattern is provided on both sides of the metal plates so as to also provide coolant channels in a herringbone pattern inside the coolant compartment.
Absstract of: WO2025230304A1
The present invention relates to an electrode catalyst for water electrolysis and a method for producing same, and provides an electrode catalyst for water electrolysis and a method for producing same, the electrode catalyst comprising: a support composed of two-dimensional structured MXene; and a hetero-joined transition metal compound located on the support, wherein the transition metal compound employs a phosphide of two or more types of metals selected from the group consisting of nickel, iron, molybdenum, cobalt, and tungsten, so that the electrode catalyst, compared with conventional commercial catalysts, exhibits improved driving stability and increased electrochemical activity through an increased surface area of the catalyst.
Absstract of: JP2025166415A
【課題】浄水器の劣化をおさえながら、水電解用の水を冷却および浄化し、十分な量を水電解セルに供給すること。【解決手段】水電解装置１は、水電解反応により水素および酸素を生成する水電解セルと、前記水電解セルで使用された水を貯蔵する水タンクと、前記水タンクに接続され前記水タンクから供給された水を冷却する熱交換器と、前記熱交換器に接続され前記熱交換器で冷却された水を浄化する浄水器と、前記水タンクから供給された水が前記熱交換器および前記浄水器を介して前記水電解セルに流れる第１流路９２と、前記水タンクから供給された水が前記熱交換器および前記浄水器を介さずに直接前記水電解セルに流れる第２流路９３と、前記水電解セルから前記水タンクに水が流れる第３流路と、を備える。【選択図】図１
Absstract of: JP2025166373A
【課題】水の電気分解を利用した二酸化炭素の回収方法であって、回収を確実に見込める方法を提供すること。【解決手段】本発明の回収方法は、水を電気分解した電解装置の陰極室３２Ｂから取り出したアルカリ性の陰極側電解液３５Ｂを、二酸化炭素を含む気体で曝気する曝気工程と、曝気した陰極側電解液３５Ｂを酸性にする酸性化工程と、酸性にした陰極側電解液３５Ｂを加熱して、気体で放出された二酸化炭素を回収する二酸化炭素回収工程とを有する。各工程において陰極側電解液３５Ｂに対する二酸化炭素の溶解と放出を制御することで、二酸化炭素を効率的に回収することができる。【選択図】図１
Absstract of: WO2025230473A1
The present disclosure relates broadly to ammonia electrochemical cells. The ammonia electrolysis cell may comprise: a chamber for containing an electrolyte; two electrodes disposed within the chamber; and an anion exchange membrane disposed between the electrodes, wherein each electrode comprises a bifunctional catalyst having ammonia oxidation reaction activity and hydrogen evolution reaction activity, and wherein each electrode is capable of alternating in polarity when subjected to an alternating potential. There is also disclosed herein a method of operating an ammonia electrolysis cell as well as the use of an ammonia electrolysis cell to produce hydrogen from ammonia.
Absstract of: WO2025231331A1
A direct impure water electrolysis (DIWE) approach generates green hydrogen in a modified proton-exchange membrane pure water electrolyzer (PEM-PWE), that avoids fouling, corrosion, deactivation, and side reactions normally caused by the ions in impure or saline waters. Conventional electrolyzers require ultrapure deionized (DI) water as feed because: 1) the proton-exchange membrane (PEM) and electrocatalysts are readily poisoned by the anions, e.g., chloride, and cations, e.g., sodium, calcium, and magnesium that are present in seawater or brackish water; and 2) the chloride anions readily form chlorine at the PEM-electrolyzer anode, which is toxic and corrosive. This adds substantially to the cost and complexity of the electrolyzer plant due to the water treatment plant needed for producing ultrapure DI water. The tolerance of impure water as described herein avoids reverse osmosis and deionization requirements steps which is beneficial for use in semi-arid regions with a paucity of fresh water.
Absstract of: WO2025231104A1
A contained hydrogen generation system ("system") comprises a high-pressure containment vessel ("vessel"), one or more proton-exchange membrane ("PEM") cells, an oxygen-water separator, and a passive dual regulator with relative differential venting ("regulator"). The vessel defines a hydrogen plenum. The PEM and the oxygen-water separator are disposed in the hydrogen plenum. The regulator includes a hydrogen fluid path in fluid communication with the hydrogen plenum, an exterior hydrogen storage vessel, and an exterior of the vessel, and also includes an oxygen fluid path in fluid communication with the oxygen-water separator, an exterior oxygen storage vessel, and an exterior of the vessel. The regulator regulates pressure imbalances between an oxygen-side of the system and a hydrogen-side of the system, and vents oxygen and hydrogen to an exterior of the vessel to allow collection of both hydrogen and oxygen and avoid rupture of a PEM in the one or more PEM cells.
Absstract of: WO2025230304A1
The present invention relates to an electrode catalyst for water electrolysis and a method for producing same, and provides an electrode catalyst for water electrolysis and a method for producing same, the electrode catalyst comprising: a support composed of two-dimensional structured MXene; and a hetero-joined transition metal compound located on the support, wherein the transition metal compound employs a phosphide of two or more types of metals selected from the group consisting of nickel, iron, molybdenum, cobalt, and tungsten, so that the electrode catalyst, compared with conventional commercial catalysts, exhibits improved driving stability and increased electrochemical activity through an increased surface area of the catalyst.
Absstract of: WO2025230139A1
A battery system comprising a cell structure for a solid oxide cell, a sealing structure applied thereto, and manufacturing methods therefor are disclosed. The disclosed battery system comprising a cell structure for a solid oxide cell may comprise a stack structure, wherein the stack structure can include: a first separation plate; a second separation plate spaced apart from the first separation plate; a cell structure for a solid oxide cell, which is disposed between the first and second separation plates and comprises a fuel electrode corresponding to an anode, an air electrode corresponding to a cathode, and an electrolyte layer disposed between the fuel electrode and the air electrode; an air electrode current collector disposed between the cell structure and the second separation plate; a first sealing gasket disposed between the first and second separation plates so as to encompass the outer surface of the cell structure; and a second sealing gasket disposed between the first and second separation plates so as to encompass the outer surface of the air electrode current collector.
Absstract of: WO2025230390A1
A ruthenium-nickel foam catalyst composite, a preparation method therefor, and a hydrogen extraction system (10) using same are disclosed. Specifically, provided is the method for preparing a catalyst composite used for ammonia decomposition, comprising the steps of: (a) making a porous support, which is in the form of a three-dimensional structure having pores and includes a first metal, come into contact with an acidic aqueous solution so as to pretreat the porous support; (b) preparing a second metal precursor aqueous solution comprising water and a second metal precursor that includes a second metal; and (c) using the pretreated porous support and the second metal precursor aqueous solution so as to support a catalyst including the second metal on a part or all of the surface of the porous support, thereby preparing a catalyst composite. The present invention provides a low-loading noble metal catalyst by maximizing the utilization of supported noble metals through selective adsorption of Ru metal.
Nº publicación: WO2025230302A1 06/11/2025
Applicant:
KOREA ELECTRIC POWER CORP [KR]
RESEARCH \uFF06 BUSINESS FOUNDATION SUNGKYUNKWAN UNIV [KR]
\uD55C\uAD6D\uC804\uB825\uACF5\uC0AC,
\uC131\uADE0\uAD00\uB300\uD559\uAD50\uC0B0\uD559\uD611\uB825\uB2E8
Absstract of: WO2025230302A1
The present invention relates to an electrode catalyst for water electrolysis, a manufacturing method thereof, and an electrode including the electrode catalyst. The present invention comprises: a core including perovskite nanocrystals; and a shell surrounding the core, and thus has improved optical, electrical, and catalytic properties compared to conventional commercial catalysts such as transition metal oxides, and achieves stable operating stability and thus exhibits excellent photoelectrochemical activity.
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