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370
resultados
Última actualización
26/08/2025 [06:58:00]
Resultados 350 a 370 de 370
Resumen de: CN120207529A
The invention discloses a renewable energy water electrolysis hydrogen production buoy platform based on an efficient catalyst, and belongs to the technical field of seawater hydrogen production, the renewable energy water electrolysis hydrogen production buoy platform comprises an electrolyte supply module, a water electrolysis hydrogen production module, a multi-element coupling power generation module and an energy storage module, the electrolyte supply module is composed of an electrolyte evaporation chamber and an electrolyte storage chamber, the water electrolysis hydrogen production module is located on the upper portion of the electrolyte supply module, the multi-element coupling power generation module is arranged on the upper side of the electrolyte supply module, and the energy storage module is composed of a hydrogen storage tank and a storage battery. According to the invention, solar energy and wind energy are used as energy sources to heat, evaporate, condense and collect seawater without fossil fuel, and meanwhile, the water electrolysis hydrogen production module is autonomously designed, so that the seawater hydrogen production efficiency is greatly improved, the cost is greatly reduced, and the system has the advantages of energy conservation, emission reduction, environmental protection, multi-energy complementation, high fresh water production efficiency and the like, and realizes solar energy, energy conservation and environmental protection. And wind en
Resumen de: CN120210843A
The invention relates to the technical field of hydrogen production through water electrolysis, and aims to solve the technical problem that energy in high-temperature and high-pressure associated gas is not fully utilized, so that energy is wasted. A solid oxide electrolysis hydrogen production device comprises a combustor, a heating assembly and an electrolysis module, the combustor is used for heating water and generating water vapor, and the heating assembly is used for heating the water vapor; the heating assembly is used for further heating the water vapor, the heated water vapor is electrolyzed through the solid oxide electrolysis module, and then hydrogen is prepared; furthermore, the specific structure of the combustor comprises an associated gas inlet, an air inlet and a water injection port, the associated gas inlet is used for introducing associated gas with the original temperature, the air inlet is used for introducing air, the water injection port is used for introducing water, and the associated gas can be combusted in the combustor and heat the water introduced from the water injection port to generate water vapor. The combustor is used for replacing a traditional steam generator with high price, the production cost of an enterprise can be greatly reduced, and meanwhile energy in associated gas can be recycled.
Resumen de: CN120210841A
The invention relates to the technical field of hydrogen preparation, in particular to a high-pressure hydrogen preparation device which comprises a preparation tank, a conducting rod with a positive electrode and a negative electrode is arranged in the preparation tank, a plurality of electrode plates are stacked on the conducting rod, an output pipe extending outwards is arranged at the top of the conducting rod, and a plurality of conical seats are arranged on the electrode plates. A longitudinally-through taper hole is formed in the taper seat, a power pressurization piece is arranged on the upper side of the taper hole and used for high-voltage circulation of electrolyte among the multiple layers of electrode plates, the same elastic connecting seat is arranged between the conducting rod and the electrode plates, and an ultrasonic vibration piece is arranged at the lower end of the conducting rod and used for improving the liquidity of the electrolyte. The stripping rate of bubbles and the electrode is improved, and the multiple conical bases are evenly distributed on the electrode plate. According to the high-pressure hydrogen preparation device, stacking use of multiple layers of electrode plates is facilitated, the fluidity of internal electrolyte is improved, and the gas outlet efficiency of the device is improved.
Resumen de: CN120214216A
The invention provides a multi-source remote sensing data-based water electrolysis hydrogen production carbon emission quantification method and device, and belongs to the field of atmosphere quantitative remote sensing, multi-source data and carbon emission quantification, nitrogen oxide is used as indication gas of carbon dioxide emission, and the method comprises the following steps: obtaining high-precision power plant position information; based on the position information of the high-precision power plant, a cooperative relation between pollutant emission and carbon emission is established; based on the cooperative relationship, utilizing an index to correct a Gaussian model, and obtaining the relationship between the observed carbon-related data and the carbon emission of the power plant; the carbon emission of each unit of hydrogen in the water electrolysis hydrogen production process is quantified by calculating the electric quantity required for preparing the unit of hydrogen and the carbon emission of the unit of generating capacity. According to the invention, high-precision quantification of carbon emission in a power plant and a water electrolysis hydrogen production process is realized, and technical support is provided for carbon emission monitoring and low-carbon technology application.
Resumen de: CN120211902A
The invention provides a solar energy and natural gas complementary coupling copper-chlorine recycle hydrogen/electricity co-production system and method. The system comprises a light condensation assembly used for enhancing the solar radiation intensity; the methane oxygen-enriched combustion high-temperature photovoltaic power generation device is used for realizing oxygen-enriched combustion by using natural gas and generating power by using radiation energy generated by first-stage high-temperature flue gas generated after combustion; the supercritical carbon dioxide Brayton cycle device is used for pushing power cycle power generation by utilizing heat energy contained in the second-stage high-temperature flue gas; and the thermal chemical reaction device is used for utilizing heat energy contained in the third-stage, fourth-stage and fifth-stage high-temperature flue gas to promote thermal chemical reaction in each step. Energy sources of the system are solar radiation and natural gas, and hydrogen and electricity are produced. Low-grade solar energy and natural gas are complementary, the energy grade is improved, based on the energy quality matching principle, electric/thermal energy of different qualities is supplied into thermochemical circulation in stages to prepare hydrogen, complementary coupling of energy of different qualities is achieved on the basis of energy cascade conversion, and the energy conversion efficiency is improved. And an efficient solar hydrogen
Resumen de: CN120210847A
The invention provides a preparation method of a nickel-iron-tungsten oxygen evolution electrode, and belongs to the technical field of hydrogen energy. The method comprises the following steps: by taking a nickel-iron alloy matrix as a working electrode, carrying out electrochemical oxidation-reduction activation treatment at room temperature in a mixed solution of tungstate, nitrate and chloride, and then carrying out heat treatment on the nickel-iron alloy matrix. In the electrochemical oxidation process, nickel ions and iron ions are dissolved out of the nickel-iron alloy matrix, meanwhile, electrochemical oxidation of chloride ions is carried out to form active chlorine, and the nickel ions and the iron ions are further chemically etched out; in the electrochemical reduction process, nitrate radicals and water on the electrode are reduced to generate hydroxyl radicals; in the process, nickel and iron ions on the electrode are combined with tungstate radicals and hydroxyl radicals to form a nickel-iron-tungsten composite hydroxide; and a nickel-iron-tungsten composite oxide is formed in the subsequent heat treatment process, so that the oxygen evolution activity and stability are further improved.
Resumen de: CN120210855A
The invention belongs to the field of new energy and water electrolysis hydrogen production, and relates to a cobalt phosphide self-supporting material and a preparation method and application thereof, the preparation method comprises the following steps: 1) mixing water, organic alcohol and a surfactant to form a solution A; mixing water, organic alcohol and cobalt salt to form a solution B; mixing the solution A, the solution B and an organic solvent, standing the mixed solution, and taking the supernatant after the mixed solution is layered to obtain a Co precursor micelle solution; and (2) dripping the Co precursor micelle solution in the step (1) on a conductive substrate, forming a Co precursor micelle-conductive substrate after the organic solvent is volatilized, and carrying out phosphating reaction on the Co precursor micelle-conductive substrate and a phosphorus source at high temperature in a protective atmosphere to obtain a CoP-conductive substrate catalyst, namely the cobalt phosphide self-supporting material. The cobalt phosphide self-supporting material has multiple active sites, and can be used as a catalyst for an HER reaction to reduce the overpotential of the HER reaction.
Resumen de: CN120210630A
The invention relates to the field of water electrolysis hydrogen production, in particular to a NiCoCrFeAl high-entropy alloy coating material and a preparation method and application thereof. The NiCoCrFeAl high-entropy alloy coating material comprises a stainless steel base body and a NiCoCrFeAl high-entropy alloy coating growing on the stainless steel base body, and the NiCoCrFeAl high-entropy alloy coating is prepared from the stainless steel base body, the NiCoCrFeAl high-entropy alloy coating material is of a nanoflower array structure, and the NiCoCrFeAl high-entropy alloy coating is obtained through in-situ growth on the surface of stainless steel with a FeOOH and NiOOH nanoflower structure. According to the method, the stainless steel is pretreated by adopting a strong oxidant, the surface of the stainless steel is oxidized into FeOOH and NiOOH with nanoflower structures by utilizing Ni and Fe elements of the stainless steel, the surface area of the electrode is effectively increased, and the nanostructure is beneficial to hydrogen removal and reduction of hydrogen evolution overpotential.
Resumen de: CN120210833A
The invention provides a solid oxide electrolytic hydrogen production device, relates to the technical field of water electrolysis hydrogen production, and aims to solve the technical problem that energy is wasted due to the fact that energy in an oil field is not fully utilized. The first flow path comprises a water injection port and a water outlet, the second flow path comprises a preheating medium inlet and a preheating medium outlet, heat exchange can be conducted between the first flow path and the second flow path, and the first flow path and the second flow path are used for preheating water flowing through the first flow path; the water vapor generator is communicated with the water outlet and is used for converting the preheated water into water vapor; and the electrolysis device is connected with the water vapor generator, and the water vapor flowing out of the water vapor generator can be subjected to electrolytic reaction on the electrolysis device to generate hydrogen. The first heat exchanger is arranged in front of the water vapor generator, so that the generation rate of water vapor can be increased, and meanwhile, energy is saved.
Resumen de: CN120210848A
The invention relates to the field of water electrolysis hydrogen production, in particular to a water electrolysis porous diffusion layer and a preparation method and application thereof. The electrolyzed water porous diffusion layer comprises a microporous layer and a base material layer, the average pore size of the electrolyzed water porous diffusion layer is 10-100 mu m, and the thickness of the electrolyzed water porous diffusion layer is 200-500 mu m; wherein the average pore diameter of the microporous layer is 0.5-20 mu m, and the thickness of the microporous layer is 10-300 mu m; the material for preparing the microporous layer comprises titanium powder, and the base material layer comprises a titanium fiber felt. By arranging the microporous layer, the contact resistance of the catalyst layer and the diffusion layer is reduced, and the electrochemical performance is improved; the micropore diameter is regulated and controlled by adjusting the proportion of the two pore-forming agents with different decomposition temperatures, and the obtained electrolyzed water porous diffusion layer can improve the performance of an electrolytic bath and reduce the damage of a proton exchange membrane under high pressure, so that the service life of the proton exchange membrane and an electrode is prolonged.
Resumen de: KR20250096137A
선박의 질소공급시스템이 개시된다. 본 발명의 선박의 질소공급시스템은, 선박에 마련되며 암모니아를 공급받아 선내 수소 수요처로 공급될 수소를 생성하는 암모니아 개질부; 상기 암모니아 개질부에서 수소 생성 후 발생하는 테일가스(tail gas)를 상기 암모니아 개질부로부터 공급받아 질소를 분리하는 질소분리부; 및 상기 질소분리부에서 분리된 질소를 저장하는 질소버퍼탱크:를 포함하고, 상기 질소버퍼탱크의 질소는 선내 질소 수요처로 공급되는 것을 특징으로 한다.
Resumen de: CN120222639A
The invention discloses a multi-electrolytic cell power optimization scheduling method and device for an off-grid wind and light hydrogen storage and production system. The method comprises the following steps: constructing an off-grid wind and light hydrogen storage and production system model and corresponding operation constraint conditions thereof; constructing a state space, an action space and a reward function of the intelligent agent model based on the off-grid type wind and light hydrogen storage and production system model and the corresponding operation constraint condition; the agent model executes an action corresponding to a randomly selected historical state to obtain a reward and a new state, and an experience multi-component group is formed; training the agent model based on the experience multi-component group to obtain an optimized agent model; and inputting data in the off-grid type wind and light hydrogen storage and production system model requiring multi-electrolytic cell power optimization scheduling into the optimized intelligent agent model to obtain actions corresponding to the optimized intelligent agent model so as to obtain the operation power of each electrolytic cell. By means of the scheme, automatic decision making can be achieved, and therefore the operation efficiency and stability of the whole off-grid type wind and light hydrogen storage and production system are improved.
Resumen de: CN120209266A
The invention provides a high-molecular-weight hyperbranched polyaryl piperidine anion exchange membrane as well as a preparation method and application thereof, and relates to the technical field of membrane materials. The high-molecular-weight hyperbranched polyaryl piperidine anion exchange membrane provided by the invention is obtained by carrying out self-polymerization on a branched monomer or carrying out copolymerization on the branched monomer, a biphenyl monomer and N-methyl-4-piperidone and then carrying out quaternization conversion. The free volume of the anion exchange membrane is larger than that of a linear polymer, so that the anion exchange membrane shows ultrahigh conductivity; due to a high-molecular-weight polymer main chain (Mn is greater than 100K), the polymer has excellent alkali-resistant stability and mechanical strength; meanwhile, the anion exchange membrane has low water absorption swelling rate and dimensional stability, is suitable for hydrogen production by electrolysis of water and alkaline fuel cells, and has wide application prospects.
Resumen de: KR20250096033A
본 발명은 산화물 담체를 준비하고, 암모니아 분해촉매 합성을 위해 니켈과 마그네슘의 전구체 용액을 준비하고, 상기 전구체 용액을 상기 담체에 함침하고, 공기중에서 700 ~ 1000℃의 온도로 1 ~ 10시간 동안 열처리하여 상기 전구체 용액으로부터 니켈 마그네슘 산화물 고용체를 생성하여 상기 담체에 니켈 마그네슘 산화물 촉매층을 형성하고, 상기 니켈 마그네슘 산화물 촉매층이 형성된 담체를 환원분위기에서 500 ~ 900℃의 온도로 2 ~ 10시간 동안 열처리하여 상기 니켈 마그네슘 산화물 촉매층으로부터 금속 니켈 촉매를 석출시키는 단계를 포함하는 암모니아 분해촉매 제조방법을 제공한다.
Resumen de: EP4574255A1
In a method of preparing an ammonia decomposition catalyst according to embodiments of the present disclosure, a mixture of a metal oxide including lanthanum and a heterogeneous metal and aluminum oxide is prepared, the mixture was subj ected to steam treatment to form a carrier, and an active metal is supported on the carrier to prepare an ammonia decomposition catalyst. The ammonia decomposition catalyst according to embodiments of the present disclosure is prepared by the above-described preparation method.
Resumen de: WO2025135565A1
The present invention relates to a composite water electrolysis system using nuclear power plant heat and electrical energy, and, to a composite water electrolysis system for receiving heat energy and electrical energy generated in each of a plurality of SMRs, the system comprising: a heat energy storage hub for storing the heat energy generated in each of the plurality of SMRs; an electrical energy storage hub for storing electrical energy generated in each of the plurality of SMRs; and a composite hydrogen production unit, which receives heat and electricity from the heat energy storage hub and the electrical energy storage hub so as to generate hydrogen and oxygen. According to one embodiment, technologies such as hydrogen production through high-temperature water electrolysis, low-temperature water electrolysis, and ammonia decomposition are diversified, hydrogen and oxygen produced through high-temperature water electrolysis are in a high-temperature state, and the waste heat energy discarded when hydrogen and oxygen are cooled to a low temperature in order to be stored can be used as an additional heat source of low-temperature water electrolysis and ammonia hydrogen decomposition devices.
Resumen de: CN120210877A
The invention belongs to the technical field of photoelectrochemistry, and particularly discloses a Fe2O3/MoNiP photo-anode film with high stability and a preparation method and application thereof. MoNiP is generated on Fe2O3 in situ through a chemical plating method, and the Fe2O3/MoNiP composite photo-anode film is constructed. The composite material shows remarkable photoelectrochemical activity and long-term stability in a solar water decomposition reaction, the photoelectrochemical efficiency can be effectively improved, and the problems that a traditional Fe2O3 material is low in catalytic activity and poor in stability are solved. The material is widely applicable to solar-driven hydrogen production, and has good economical efficiency and industrial application prospect.
Resumen de: CN120210884A
The invention belongs to the technical field of new energy and water electrolysis hydrogen production, and relates to a hydrogen evolution catalyst and a preparation method and application thereof. The preparation method comprises the following steps: 1) dissolving a tungsten salt, a zinc salt and an oxide in an alkaline solution to obtain a mixed solution; (2) carrying out hydrothermal reaction on the mixed solution in the step (1) to prepare zinc-doped tungsten trioxide powder; and 3) dispersing the zinc-doped tungsten trioxide powder in a dispersing agent, and adding platinum salt for hydrothermal reaction to obtain the platinum-loaded tungsten trioxide catalyst. The preparation method comprises the following steps: preparing Zn-doped WO3 powder by utilizing a hydrothermal reaction, and then preparing Pt nano-particle loaded WO3 powder through ion exchange; the expensive precious metal material with limited yield is replaced by the cheap transition metal material, and the production cost of the electrolyzed water is reduced; in addition, the hydrogen evolution catalyst provided by the invention has high catalytic activity, and can reduce electrolysis energy consumption in a water electrolysis hydrogen production reaction.
Resumen de: FR3157228A1
CATALYSEUR NOTAMMENT DE CRAQUAGE DE L’AMMONIAC, PROCEDE DE PREPARATION DU CATALYSEUR ET PROCEDE DE SYNTHESE D’HYDROGENE Catalyseur pour la décomposition de l’ammoniac en hydrogène et azote, ledit catalyseur comprenant au moins du ruthénium, de l’oxyde de cérium mésoporeux et au moins un oxyde choisi parmi les oxydes de cobalt, de nickel et de fer, de préférence l’oxyde de nickel et procédé pour produire de l’hydrogène à partir d’ammoniac comprenant les étapes suivantes dans cet ordre : activation d’au moins un catalyseur selon l’invention à une température allant de 300°C à 600°C, sous un flux d’un gaz réducteur ; mise en contact dudit catalyseur activé avec un gaz à traiter comprenant de l’ammoniac à une température allant de 200°C à 800°C, et à une pression allant de la pression atmosphérique à 100 bar. Figure pour l’abrégé : Fig. 3
Nº publicación: CN120210864A 27/06/2025
Solicitante:
CNPC SHENZHEN NEW ENERGY RES INSTITUTE CO LTD
PETROCHINA COMPANY LTD
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Resumen de: CN120210864A
The invention relates to a composite material and a preparation method and application thereof, and belongs to the technical field of electrolytic hydrogen production. The composite material comprises a La-based perovskite material and a composite material of oxides of VIB group elements, according to the composite material, the VIB group elements have various valence states, and the valence states of common oxidants of the VIB group elements comprise + 6 and + 4, so that the composite material has certain valence changing capacity, has better interaction with active oxygen, and assists in completing the oxidation process of oxygen ions; and the interface member of the oxide of the VIB group element and the La-based perovskite material can change the electronic structure of the surface of the La-based perovskite material, so that the oxygen evolution reaction activity of the La-based perovskite material is improved, and the purpose of improving the poor catalytic activity of the La-based perovskite material is achieved.
BOPI
Sede Electrónica
