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445
resultados
Última actualización
17/08/2025 [07:11:00]
Resultados 350 a 375 de 445
Resumen de: KR20250090704A
일 실시예에 따른 수전해 설비의 전원 공급 장치는, 전원, 상기 전원으로부터 입력 전력을 제공받고 상기 수전해 설비로 출력 전력을 제공하는 전력변환기 및 상기 전력변환기를 제어하는 제어기를 포함하고, 상기 전력변환기는 상기 입력 전력을 상기 수전해 설비의 작동 조건에 맞는 출력 전력으로 변환할 수 있다.
Resumen de: KR20250091080A
활성 영역(active area) 및 활성 영역을 둘러싸는 비활성 영역(inactive area)를 가지는 고분자 전해질 막; 고분자 전해질 막의 활성 영역의 제1 면 위에 위치하는 수소 발생 전극; 고분자 전해질 막의 활성 영역의 제2 면 위에 위치하는 산소 발생 전극; 고분자 전해질 막의 비활성 영역의 제1 면 위에 배치되며 제1 전극을 둘러싸는 제1 서브가스켓; 그리고 고분자 전해질 막의 비활성 영역의 제2 면 위에 배치되어 제2 전극을 둘러싸는 제2 서브가스켓;을 포함하며, 제1 서브가스켓은 수소 발생 전극을 수용하는 제1 윈도우, 및 제1 윈도우를 둘러싸며 고분자 전해질 막의 비활성 영역을 노출시키는 제1 물 공급 경로를 가지는, 수전해셀용 막-전극 어셈블리를 제공한다.
Resumen de: CN120169279A
The invention provides an energy system for synthesizing green methanol based on biomass gasification and oxygen-enriched combustion, and belongs to the technical field of new energy. The energy system comprises an electrolysis system, an oxygen-enriched combustion system, a methanol synthesis system, a biomass gasification system and an ammonia-process carbon capture unit, an oxygen outlet of the electrolysis system is communicated with the oxygen-enriched combustion system, and a hydrogen outlet of the electrolysis system is communicated with the methanol synthesis system; oxygen generated by the electrolysis system is supplied to the biomass oxygen-enriched combustion system for supporting combustion, and hydrogen is supplied to the methanol synthesis system; a hydrogen outlet of the biomass gasification system is communicated with the methanol synthesis system; a carbon dioxide outlet of the oxygen-enriched combustion system is communicated with the methanol synthesis system through the ammonia-process carbon capture unit; the material energy flow of the energy system is adjusted through hydrogen generated by the biomass gasification system, and the adjusting flexibility of the energy system is improved; the concentration of carbon dioxide output by the oxygen-enriched combustion system is concentrated through the ammonia-process carbon capture unit, and the pretreatment requirement of methanol synthesis is met.
Resumen de: CN120174390A
The invention relates to the technical field of hydrogen production, in particular to a combined hydrogen-air all-in-one machine and a hydrogen storage assembly thereof.The combined hydrogen-air all-in-one machine comprises a bottom plate, a hydrogen production machine is fixedly installed on one side of the upper end face of the bottom plate, an electrolytic tank is fixedly installed at the bottom of an inner cavity of the hydrogen production machine, and a heat storage pipe fixedly installed on the inner wall of the hydrogen production machine in a spiral surrounding mode is arranged above the electrolytic tank; according to the hydrogen production device, after water in the water tank is injected into the electrolytic tank, the hydrogen production machine is started, so that the water in the electrolytic tank is heated and electrolyzed, heat of high temperature generated during hydrogen production in the hydrogen production machine can be recycled through the arrangement of the heat storage pipe, and the hydrogen production efficiency is improved; and high-temperature water vapor generated when the electrolytic tank electrolyzes the hydrogen rises and is adsorbed to the lower end face of the gathering plate, water drops of the gathering plate drop into the collecting box, and a water pump in the recycling pipe is started, so that distilled water generated during hydrogen production in the collecting box is recycled by the recycling pipe.
Resumen de: CN120174422A
The invention discloses a performance test method for a water electrolysis hydrogen production system, which comprises the following steps: controlling the water electrolysis hydrogen production system to stably operate for not less than 24 hours under rated working conditions of rated cell pressure, rated cell temperature and rated current so as to carry out a first rated working condition steady-state performance test and obtain initial unit direct-current energy consumption of the water electrolysis hydrogen production system; the load current of the water electrolysis hydrogen production system is controlled to change according to the preset fluctuation current, and annual wind and light fluctuation working condition simulation operation is carried out; wherein the preset fluctuation current is determined according to power supply power fluctuation change of wind and light power generation within at least one year; performing a second rated condition steady-state performance test on the water electrolysis hydrogen production system to obtain the final unit direct-current energy consumption of the water electrolysis hydrogen production system; and comparing the final unit direct-current energy consumption with the initial unit direct-current energy consumption to obtain performance loss data of the water electrolysis hydrogen production system. According to the technical scheme, accurate and reliable performance evaluation on the water electrolysis hydrogen production syst
Resumen de: CN120174414A
The invention provides a method for inhibiting poisoning of an anode catalyst for PEM electrolyzed water, a modified oxygen evolution catalyst and application, and relates to the technical field of proton exchange membrane electrolyzed water. The method comprises the following steps: mixing and stirring an oxygen evolution catalyst and an auxiliary modifier in a solvent to obtain a mixed solution I; wherein the auxiliary modifier comprises hydrogen peroxide; mixing the mixed solution I with a modifier, and performing reflux heating to obtain a mixed solution II; wherein the modifier comprises any one or a combination of at least two of a reagent containing acid radical ions, thiourea, phosphide or phosphide; and removing the solvent in the mixed solution II to obtain the modified oxygen evolution catalyst. After the surface of the oxygen evolution catalyst is modified, the strong coordination effect of ionomer sulfonic acid sites is inhibited, a dynamic adjustable hydrogen bond network is constructed, efficient gas transmission is promoted, and finally high-working-condition active expression and long-life stable operation of the catalyst are achieved.
Resumen de: CN120174421A
The invention relates to the technical field of new energy, and discloses an operation control method of a renewable energy water electrolysis hydrogen production device, which comprises the following steps: step 1, collecting renewable energy power data, combining environmental data analysis, and establishing a power prediction model by using a long short-term memory network; step 2, establishing a variational optimal control model of the water electrolysis hydrogen production system, and setting constraint conditions of power input, voltage and current density of an electrolytic bath by taking maximization of hydrogen yield and minimization of electric energy consumption as optimization targets; the power prediction method based on the long-short-term memory network is adopted, accurate prediction of renewable energy power generation fluctuation is achieved, the technical effect of stabilizing the water electrolysis hydrogen production process is achieved, and compared with a simple linear prediction model in the prior art, the power prediction accuracy is remarkably improved, and the power prediction efficiency is improved. The problem that the input power of the electrolytic cell is unstable due to renewable energy fluctuation is solved.
Resumen de: KR20250090440A
본 발명은 수증기와 수소의 혼합물을 포함하는 연료와 공기를 입력 받아 전기분해를 통해 수소 및 수증기 혼합물을 생성하는 고체 산화물 전기분해 셀을 포함하고, 상기 고체 산화물 전기분해 셀에서 생성된 수소 및 수증기 혼합물의 일부는 제1분기에서 재순환하여 상기 연료에 혼합되고, 나머지는 분리기에서 수소와 수증기로 분리되고, 상기 분리기에서 분리된 수증기 중 일부는 제2분기에서 재순환되어 상기 연료에 혼합되는 고체 산화물 연료전지 셀 시스템에 관한 것이다.
Resumen de: CN120185069A
The invention discloses an off-grid photovoltaic power generation hydrogen production system based on power coprocessing, and relates to the technical field of photovoltaic power generation. Photovoltaic power generation power in a future preset time period is predicted by acquiring current weather data; calculating a power loss coefficient by analyzing historical hydrogen production records; according to the power loss coefficient, the receivable power of the water electrolysis device is predicted, and whether the energy storage equipment needs to supplement power or not is judged; when the photovoltaic power generation is insufficient, calculating a discharge priority coefficient according to the current electric quantity, the discharge frequency, the discharge depth and the battery temperature of the energy storage equipment; according to the sequence of the discharge priority coefficients from large to small, proper energy storage equipment is selected to provide supplementary power until the requirement of the water electrolysis device is met; according to the scheme, the photovoltaic power generation loss is effectively calculated, whether photovoltaic power generation is sufficient or not is judged, the energy storage equipment is reasonably selected for discharging, over-discharging or unbalanced discharging of the energy storage equipment is avoided, and the system stability and long-term reliability are ensured.
Resumen de: CN120185089A
The embodiment of the invention discloses an optimal configuration method and device for a wind and light hydrogen storage and production system and the wind and light hydrogen storage and production system. A target function of an off-grid type wind and light hydrogen storage and production system and a target function of a grid-connected type wind and light hydrogen storage and production system are established by taking the lowest unit cubic hydrogen cost as an optimization target; constraining the objective function from the aspects of power generation, energy storage, hydrogen production and actual operation; and finally solving the target function under the constraint condition to obtain the optimal value of the decision variable of the corresponding target function. The technical problems that in the prior art, due to the fact that a wind-light hydrogen storage and production system does not have a scientific wind-light hydrogen storage and production matching rule, economical efficiency is poor, and resources are wasted are solved, and the technical effects that the matching rule of the wind-light hydrogen storage and production system is scientifically formulated, system economics is effectively improved, and resource waste is avoided are achieved.
Resumen de: CN120181332A
The invention discloses a capacity configuration optimization method for preparing methanol by coupling wind-solar hydrogen production with biomass gasification, belongs to the field of methanol preparation, and develops a comprehensive optimization framework to evaluate the technical economic feasibility of renewable methanol production. According to the framework, renewable energy power generation, an energy storage technology, hydrogen production through water electrolysis and methanol synthesis are integrated together, so that a production system with cost effectiveness is constructed. And establishing an optimization model to determine the optimal investment and operation strategy of green methanol production. According to the model, investment and operation decisions of a plurality of system components are considered, and a series of decision variables are set. Through the solution of the optimization model, the problem of insufficient economic evaluation and comparison technology of synthesizing methanol from renewable energy sources is solved, a scientific basis is provided for a project in planning, design and decision-making stages, and the development of the field of synthesizing methanol from renewable energy sources is promoted.
Resumen de: CN120174407A
The invention discloses a platinum-molybdenum metal bi-component nano-catalyst for producing hydrogen by electrolyzing water and a preparation method thereof, and belongs to the technical field of nano-catalysts, the platinum-molybdenum metal bi-component nano-catalyst comprises carbon black and platinum-molybdenum metal bi-component nano-particles loaded on the surface of the carbon black, the mass fraction of platinum is 0.9-20%, the mass fraction of molybdenum is 12-25%, and the mass fraction of molybdenum is 0.5-1%. The preparation method comprises the following steps: dissolving platinum acetylacetonate and molybdenum pentachloride in an organic solvent, adding carbon black, heating to obtain mixed powder, and calcining at 500-600 DEG C for 4-6 hours. Metallic molybdenum with the atomic radius and the crystal structure similar to those of metallic platinum is introduced into metallic platinum, the morphology and the electronic structure of the platinum nano-catalyst are regulated and controlled through the interaction between the metallic molybdenum and the metallic platinum, adsorption and desorption of reactants and intermediates are optimized, the catalytic activity of the nano-catalyst in the water electrolysis hydrogen evolution reaction is remarkably improved, and the catalytic activity of the nano-catalyst in the water electrolysis hydrogen evolution reaction is improved. Meanwhile, the usage amount of metal platinum is greatly reduced, and the cost is remarkably
Resumen de: CN120185027A
The invention relates to an electricity-hydrogen coupling system control method and device based on distributed model predictive control. The method comprises the following steps: respectively determining each energy storage unit in the isolated island DC micro-grid as a subsystem; according to the operation states of the electric energy storage unit and the hydrogen energy storage unit, determining an electric-hydrogen coupling working mode of the isolated island DC micro-grid; constructing a cost function of the subsystems according to the system variables of the subsystems working according to the electro-hydrogen coupling working mode; the system variables comprise the voltage data of the subsystem, the state of charge (SOC) of a battery and the control quantity of the subsystem; the subsystem control quantity in the cost function is optimized, and the optimal control quantity is obtained; and inputting the optimal control quantity into a power electronic converter in the isolated island DC micro-grid, and performing droop control on the electric energy storage unit and VSG control on the hydrogen energy storage unit through the power electronic converter according to the optimal control quantity. By adopting the method, the control precision of the electro-hydrogen coupling system can be improved.
Resumen de: CN120172815A
The invention relates to the technical field of new energy power generation application, and discloses a green methanol generation process and system based on renewable energy and reaction waste heat, and the process comprises the following steps: obtaining hydrogen and oxycarbide; ammonia synthesis reaction is carried out based on hydrogen, and waste heat in the reaction process is collected; the renewable energy sources are utilized to generate electric energy; according to the method, hydrogen and oxycarbide are used for carrying out methanol synthesis reaction to generate methanol, in the methanol synthesis reaction, electric energy generated by renewable energy sources is used for supplying power, and collected waste heat in the synthesis ammonia reaction process is used for providing reaction heat energy. According to the method, the energy utilization efficiency is improved, the production cost is reduced, environment-friendly and sustainable development is achieved, development of the green energy chemical industry is promoted, and contribution is made to green and sustainable development of economy.
Resumen de: CN120174402A
The invention belongs to the technical field of electrochemistry, and provides a carbon-supported metal cluster hydrogen evolution electrode, a preparation method and application, and the method comprises the following steps: manufacturing a carbon conductive substrate; preparing deposition liquid containing soluble metal salt and carbon quantum dots; the carbon conductive substrate is placed in a deposition solution containing soluble metal salt and carbon quantum dots, and the carbon-supported metal cluster hydrogen evolution electrode is prepared through a one-step electrodeposition method. The electrode prepared by the method can be used for chlor-alkali industry, hydrogen preparation by electrolyzing water or hydrogen isotope separation and fuel cells, is low in preparation raw material cost and mild in preparation condition, has ultralow hydrogen evolution overpotential and excellent stability, and shows good industrial prospect and economic value.
Resumen de: WO2024120594A1
A hydrogen generation system comprising a wind turbine installation including a wind energy generator (18) connected to a hydrogen electrolyser (30) by a power converter system (22) The power converter system (22) comprises a generator-side converter (24) and a electrolyser-side converter (26) which are coupled together electrically by a DC-link (28), and a converter controller (50) comprising a generator-side control module (50) coupled to the generator-side converter and a electrolyser-side control module (52) coupled to the electrolyser-side converter. The converter controller is configured to control the load torque on the wind energy generator and the electrical power fed to the electrolyser to implement a mechanical damping function associated with the wind turbine installation whilst maintaining a stable DC-link voltage. Beneficially, therefore, the wind turbine installation can implement active control of electromechanical damping systems whilst operating the electrolyser at an efficient operating point.
Resumen de: CN120169105A
The invention discloses an alkaline electrolytic bath adsorption method hydrogen purification system and a control method, and belongs to the technical field of hydrogen purification of alkaline water electrolytic baths, the alkaline electrolytic bath adsorption method hydrogen purification system comprises a deoxidation unit, an adsorption unit connected with the deoxidation unit, and a drying unit connected with the adsorption unit; the adsorption unit comprises: a housing; a containing barrel; and a driver. In the application of the invention, the containing cylinder is arranged and is divided into a plurality of fan-shaped cavities with the same size under a plurality of partition plates, each fan-shaped cavity is filled with an adsorbent, and the adsorbent dynamically changes in an adsorption area, a regeneration area and a cooling area in a shell, so that raw material hydrogen flowing out of a gas-liquid separation system of the alkaline electrolytic cell is deoxidized and adsorbed to remove water; and part of the product hydrogen is utilized to realize online continuous regeneration of the adsorbent, so that the technical problems of complex system and unstable operation in the application of the traditional hydrogen purification technology in the prior art are solved, and the technical effect of cyclic utilization of the adsorbent is realized.
Resumen de: CN120169277A
The invention discloses a system and a method for producing methanol from a biomass raw material. The system comprises a purification device, a dry reforming reaction device and a methanol synthesis reaction device, the purification device is connected to the dry reforming reaction device and is used for carrying out dry reforming reaction on the purified biomass synthesis gas serving as part of or all raw material gas; the dry reforming reaction device is connected to the methanol synthesis reaction device; a hydrogen supplementing opening is formed in a pipeline for connecting the dry reforming reaction device and the methanol synthesis reaction device and is used for supplementing hydrogen into the reformed gas to obtain mixed gas; a product flowing out of the methanol synthesis reaction device contains methanol. According to the invention, dry reforming is carried out on the biomass synthesis gas, and methanol synthesis is directly carried out after the hydrogen-carbon ratio of the reformed gas is adjusted in a hydrogen supplementing manner, so that the production process of methanol is simplified, efficient conversion of green carbon in the biomass synthesis gas is realized, and no extra carbon dioxide emission is generated.
Resumen de: CN120174400A
The invention discloses a PEM hydrogen production flow field bipolar plate, a hydrogen production galvanic pile and a hydrogen production method of the PEM hydrogen production flow field bipolar plate. The PEM hydrogen production flow field bipolar plate comprises a bipolar plate body, an oxygen flow channel and a hydrogen flow channel, the oxygen flow channel and the hydrogen flow channel are respectively arranged on two opposite surfaces of the bipolar plate body; the oxygen flow channel is used for introducing electrolyzed water and forming turbulent flow to promote electrolytic reaction, and the hydrogen flow channel is used for guiding generated hydrogen to be rapidly output. According to the invention, the contact efficiency of electrolyzed water and the proton exchange membrane can be improved, the electrolytic reaction is promoted, and rapid output of hydrogen is realized.
Resumen de: CN120174419A
The invention relates to a hydrogen production method and device, computer equipment and a readable storage medium. The method is applied to an electro-hydrogen coupling system, and the electro-hydrogen coupling system comprises an electrolytic bath; the method comprises the following steps: acquiring working current information and working voltage information of the electrolytic cell when it is detected that the electrolytic cell is in a power balance state; detecting the initial hydrogen production rate of the electrolytic cell based on the working current information, and detecting the energy conversion efficiency of the electro-hydrogen coupling system based on the initial hydrogen production rate, the working voltage information and the working current information; according to the energy conversion efficiency and the electrical resource attribute information of the electricity-hydrogen coupling system under the current working condition, the initial hydrogen production rate is corrected, and the actual hydrogen production rate is obtained; based on the electrical resource attribute information and the actual hydrogen production rate, generating hydrogen production control information when the hydrogen production consumption resource quantity of the electricity-hydrogen coupling system is minimum; and controlling the electro-hydrogen coupling system to execute hydrogen production operation based on the hydrogen production control information. The method can be used for r
Resumen de: CN120184269A
The invention belongs to the technical field of electrochemical catalysis, and discloses a preparation method of a carbon-loaded platinum-based alloy nano difunctional electrocatalyst. The preparation method comprises the following steps: firstly, preparing high-defect graphene nanospheres in toluene through an underwater arc discharge method, uniformly dispersing a Pt source, transition metal sources such as Fe, Co and Ni, a surfactant and the graphene nanospheres in an N, N-dimethylformamide solution by stirring, and reacting in a microwave reaction kettle for a certain time to obtain a carbon-loaded platinum-based alloy nano catalyst; the platinum element and the transition metal element are reduced into the ordered intermetallic alloy compound nano-particles through the microwave effect, and the sizes of the ordered intermetallic alloy compound nano-particles are uniform; the catalyst has excellent catalytic activity and stability in an alkaline oxygen reduction reaction and a full-pH hydrogen evolution reaction, and is beneficial to the realization of industrial application of hydrogen production by electrolysis of water and hydrogen-oxygen fuel cells.
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: CN120185025A
The invention discloses a hydrogen production power supply system and a control method thereof. The system comprises a transformer, a main power branch, an auxiliary power branch, at least one group of energy storage branches and a bus bar, a primary winding of the transformer is coupled to an alternating current power grid, and a secondary winding is coupled to the input end of the main power branch; the output end of the main power branch is coupled to the off-grid hydrogen production equipment; the auxiliary power branch is coupled between the secondary winding and the bus bar; the energy storage branches are coupled to the bus bar; the main power branch comprises at least one group of uncontrolled rectifying circuits and at least one group of chopper circuits, the uncontrolled rectifying circuits are used for converting alternating current output by the transformer into direct current, the cost is low, and the chopper circuits are used for adjusting the voltage of the direct current into the voltage required by a load of the chopper branch; the auxiliary power branch is used for outputting power to the bus bar and performing power interaction with an alternating current power grid to improve the response capability to the alternating current power grid; and the energy storage branch is used for pre-storing and releasing electric energy through the bus bar, so that the system stability is improved.
Resumen de: CN120174396A
The invention discloses an electrolytic cell sealing structure of an alkaline electrolytic cell, and relates to the technical field of alkaline water electrolysis hydrogen production, the electrolytic cell sealing structure comprises a first pole frame assembly, a first O-shaped sealing ring group, a diaphragm, an insulating plate, a second O-shaped sealing ring group and a second pole frame assembly which are sequentially stacked and fixedly connected to form an electrolytic cell; the first pole frame assembly is provided with a plurality of oxygen side runners, a plurality of hydrogen side runners, a plurality of oxygen side sealing grooves and a hydrogen side sealing groove; the number of the oxygen side flow channels is the same as that of the oxygen side sealing grooves, and each oxygen side flow channel is located on the inner side of one oxygen side sealing groove; all the hydrogen side runners are positioned on the inner side of the hydrogen side sealing groove; all the oxygen side sealing grooves are located on the outer sides of the hydrogen side sealing grooves. By arranging the large hydrogen side sealing groove and the small oxygen side sealing grooves, the sealing performance of the electrolytic cell is guaranteed, meanwhile, hydrogen and oxygen are better separated, and safety is improved.
Nº publicación: CN120174412A 20/06/2025
Solicitante:
NINGBO UNIV
\u5B81\u6CE2\u5927\u5B66
Resumen de: CN120174412A
The invention relates to a P/Fe-CN electrolyzed water catalyst and a preparation method and application thereof, and belongs to the technical field of inorganic synthesis and material preparation. The catalyst takes Fe-ZIF-8 as a core, PB (Prussian Blue) grows outside the Fe-ZIF-8, a composite structure is formed through high-temperature phosphating treatment, and the electrocatalytic water decomposition performance is good. The preparation method comprises the following steps: (1) synthesizing Fe-ZIF-8; 2) growing a PB shell; the material has a three-dimensional pore structure, the conductivity and the catalytic activity can be improved, the overpotentials of a hydrogen evolution reaction (HER) and an oxygen evolution reaction (OER) are 276.8 mV and 292.8 mV respectively under the current density of 10 mA cm <-2 >, and the potential is 1.81 V under the current density of 10 mA cm <-2 > when the material is assembled into a full-hydrolysis battery. The preparation method is simple, low in cost and suitable for large-scale production, and has a certain application prospect.
BOPI
Sede Electrónica
