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662
resultados
Última actualización
01/09/2024 [07:14:00]
Resultados 100 a 125 de 662
Resumen de: US2024270571A1
Systems and methods related to aluminum-water reactions, hydrogen gas production, and the recovery of activating metals are generally described.
Resumen de: AU2023215305A1
An electrolyzer cell comprises a first half cell comprising a housing at least partially enclosing a cell interior, a first electrode coated with a first catalyst coating, wherein the first electrode is coupled to the housing in the cell interior without welding, a second electrode coupled to the housing in the cell interior without welding, and a separator positioned between the first electrode and the second electrode, wherein a voltage is applied between the first electrode and the second electrode.
Resumen de: US2024271779A1
Operating a natural gas processing plant, including receiving feed natural gas and processing the feed natural gas to give product natural gas. The processing includes removing acid gas, water, and non-methane hydrocarbons from the feed natural gas. The method includes providing fuel to a furnace and combusting the fuel in the furnace to heat a boiler to generate steam. The method generating steam with an HRSG. The method includes subjecting blowdown water from the boiler and the HRSG to electrolysis, thereby generating hydrogen gas. The method includes combining the hydrogen gas with the fuel and combusting the hydrogen gas in the furnace.
Resumen de: US2024271296A1
An electrolytic device includes: an electrolytic tank; an ion exchange membrane configured to partition the electrolytic tank into a cathode chamber and an anode chamber; a catholyte supply unit configured to supply an electrolytic solution serving as a catholyte to the cathode chamber; a catholyte discharge unit configured to discharge the catholyte from the cathode chamber; an anolyte supply unit configured to supply an electrolytic solution serving as an anolyte to the anode chamber; an anolyte discharge unit configured to discharge the anolyte from the anode chamber; a cathode; an anode; a cathode side power feeder provided in the cathode chamber and configured to supply electric power to the cathode; and an anode side power feeder provided in the anode chamber and configured to supply electric power to the anode. A pH of the catholyte is lower than a pH of the anolyte.
Resumen de: US2024271299A1
A CoVOx composite electrode and method of making is described. The composite electrode comprises a substrate with an average 0.5-5 μm thick layer of CoVOx having pores with average diameters of 2-200 nm. The method of making the composite electrode involves contacting the substrate with an aerosol comprising a solvent, a cobalt complex, and a vanadium complex. The CoVOx composite electrode is capable of being used in an electrochemical cell for water oxidation.
Resumen de: US2024271302A1
A method can include combusting a sulfur precursor in air to form sulfur dioxide, providing the sulfur dioxide to an electrolyzer with at least a threshold gauge pressure, providing water to the electrolyzer, and oxidizing the sulfur dioxide to sulfuric acid and reducing the water to hydrogen in the electrolyzer.
Resumen de: US2024271290A1
An electrochemical cell apparatus comprising: an electrolyte chamber and a positive electrode and a negative electrode disposed in the chamber; wherein a ratio between a surface area of the positive electrode and a surface area of the negative electrode is at least 100:1.
Resumen de: US2024271291A1
Described herein are systems and methods for the efficient desalination and electrolysis of water to form hydrogen and oxygen gas. The systems include a desalinator, an electrolyzer, and a coolant loop. The coolant loop transfers heat produced by the electrolyzer to the desalinator, thereby reducing the energy inputs required for the desalinator to function. The methods generally include desalinating water in a desalinator, electrolyzing the desalinated water, and transferring heat generated by the electrolyzing to the desalinator.
Resumen de: US2024271300A1
A CoVOx composite electrode and method of making is described. The composite electrode comprises a substrate with an average 0.5-5 μm thick layer of CoVOx having pores with average diameters of 2-200 nm. The method of making the composite electrode involves contacting the substrate with an aerosol comprising a solvent, a cobalt complex, and a vanadium complex. The CoVOx composite electrode is capable of being used in an electrochemical cell for water oxidation.
Resumen de: US2024274837A1
A method for manufacturing a metal plate including a rolling step for rolling a metal material provided with a penetration space passing through the metal material in a thickness direction to reduce the thickness of the metal material and reduce the area of a surface opening formed in the surface of the metal material by the penetration space, thereby producing a plate-like metal plate.
Resumen de: WO2024168349A1
Described herein are systems and methods for the efficient desalination and electrolysis of water to form hydrogen and oxygen gas. The systems include a desalinator, an electrolyzer, and a coolant loop. The coolant loop transfers heat produced by the electrolyzer to the desalinator, thereby reducing the energy inputs required for the desalinator to function. The methods generally include desalinating water in a desalinator, electrolyzing the desalinated water, and transferring heat generated by the electrolyzing to the desalinator.
Resumen de: WO2024168213A2
A hydrogen generation system includes: a direct current (DC) power supply providing a driver signal, a reactive circuit coupled to the power supply and configured to generate a pulse drive signal from the driver signal, at least one reaction chamber coupled to the reactive circuit and receiving the pulse drive signal wherein the chamber is configured to generate hydrogen from feedstock material utilizing the pulse drive signal, a gas analyzer coupled to the at least one reaction chamber and configured to detect the generated hydrogen, and a control unit coupled to the reactive circuit and to the gas analyzer and configured to control the reactive circuit based on the detected hydrogen. The reaction chamber includes a plurality of positively charged elements and a plurality of negatively charged elements. The elements are composed of non-dis similar metallic material.
Resumen de: WO2024165095A1
The invention relates to a method and a device for drying and cleaning hydrogen-containing gases according to the preamble of claim 1 and the preamble of claim 12. The problem addressed by the invention is that of drying the catalyst that is situated in the reactor, of ensuring that the temperature of the catalyst does not fall below a minimum temperature or exceed a maximum temperature during an outage of the electrical power supply, in order to improve an immediate start-up of the reactor and improve the operational readiness of the adsorbers when the electrical power supply is provided, and of thus improving economy. This problem is solved in that: prior to the commencement of the regeneration, the pressurized clean gas (D) that remains in the device is heated in at least the heater (4) and/or electric heating element (13) and is circulated by the gas booster (12) as heat carrier gas (W) in a suction flow in at least one flow path (M or N or O) which leads via the reactor (5), cooler (6), separator (7) and adsorbers (9, 10), by virtue of the switching valves being switched in a manner triggered by the control unit (21), until the catalyst in the reactor (5) is completely dry, wherein the hot heat carrier gas (W) is firstly conducted into the catalyst for the purposes of absorbing the water, the hot heat carrier gas (W) laden with water is cooled in the cooler (6), the condensed water is separated from the heat carrier gas (W) in the separator (7), and the heat carrier gas
Resumen de: AU2022361490A1
An electrolyzer system comprises one or more electrolyzer cells each comprising a first half cell with a first electrode and a second half cell with a second electrode and a controller to control a current applied through the one or more electrolyzer cells, wherein the controller is configured to dynamically set the current density within a current density range of from about 150 mA/cm2 to about 3000 mA/cm2, and wherein the controller is configured to set the current density to a first value when a first condition is met and to a second value when a second condition is met.
Resumen de: US2024043269A1
A system and a method for producing hydrogen and electrical power from an aqueous ammonia solution are provided. An exemplary system includes a distillation unit to produce ammonia gas from the aqueous ammonia solution, a compression unit to boost the pressure of the ammonia gas, a membrane separator to catalytically convert the ammonia gas to nitrogen and hydrogen and remove the hydrogen as a permeate, and a micro turbine to combust a retentate to generate energy.
Resumen de: GB2627041A
Hydrocarbon synthesis process comprising the steps of: (a) feeding a gas mixture comprising hydrogen 14 and carbon dioxide 10 to a reverse water-gas shift unit 12, forming crude synthesis gas comprising hydrogen, carbon monoxide, carbon dioxide and steam; (b) cooling crude synthesis gas to condense and remove water to produce a feed stream 20 comprising hydrogen and carbon monoxide; (c) passing the feed stream though a hydrocarbon synthesis unit 22 comprising a reactor containing a Fischer-Tropsch catalyst to form product stream 28 comprising mixed liquid hydrocarbons, a co-produced water stream 26, and a tail gas stream 24 containing hydrogen, carbon monoxide and gaseous hydrocarbons; (d) upgrading the product stream in an upgrading unit 30 to produce an upgraded product stream 40; wherein a naphtha stream 26/42 is separated from the product or upgraded product streams; at least a portion of the tail gas stream is fed with steam and at least a portion of the naphtha stream is fed with hydrogen and steam to derichment vessels 44/50 containing derichment catalysts to form first 48 and second 58 gas mixtures containing methane which are fed to the reverse water gas shift unit. A system for performing the process is provided.
Resumen de: EP4414321A2
An apparatus to provide cooling water to multiple facilities including a hydrogen plant that includes electrolyzers for manufacture of hydrogen and/or an ammonia plant including ammonia manufacturing for making ammonia. The apparatus can include a first cooling tower configured to provide cooling water at a first temperature for providing cooling to elements of the ammonia manufacturing and/or hydrogen plant. The apparatus can also include a second cooling tower configured to providing cooling water at a second temperature that is higher than the first temperature for providing cooling for gas coolers and electrolyte coolers of the hydrogen plant. The first and second cooling towers can be configured to utilize sea water or fresh water. The cooling towers can also be arranged and configured to permit substantial capital cost reductions while also providing improved maintenance and safety features as well as improved operational flexibility.
Resumen de: US2023369621A1
This disclosure relates to polymer electrolyte membranes, and in particular, to a composite membrane having at least two reinforcing layers comprising a microporous polymer structure and a surprisingly high resistance to piercing. This disclosure also relates to composite membrane-assemblies and electrochemical devices comprising the composite membranes of the disclosure, and to methods of manufacture of the composite membranes.
Resumen de: AU2022360746A1
A system for an electrochemical process comprises an electrochemical reactor (101), an electric power source (104) for supplying controllable direct voltage to electrodes of the electrochemical reactor, a measurement apparatus (105) for producing measurement data indicative of formation of product gases of the system, and a controller (106) configured to reduce the direct voltage when: an idle command to set the system into an idle state has been received, the measurement data indicates formation of the product gas, and the direct voltage is above a lower limit of a safe voltage area free from degradation of the electrodes. Thus, in the idle state, the direct voltage is reduced only by an amount needed for stopping the product gas formation but not more. Therefore, the degradation such as corrosion of the electrodes can be avoided or at least reduced in the idle state.
Resumen de: CN118479426A
本发明提出了一种多孔中空竹笋状氮化碳纳米管及其制备方法和应用，属于无机材料技术领域。所述多孔中空竹笋状氮化碳纳米管的长度为5‑8μm，其最大横截面的直径为400‑800nm，其表面孔结构的直径为15‑60nm，其管壁厚为5‑15nm。本发明通过提供较低的前驱体析出的温度得到了具有特殊形貌的针状前驱体，在氩气气氛中煅烧后得到多孔中空竹笋状氮化碳纳米管。该合成方法简单可行，且原料价格低廉，对于合成具有特殊形貌的材料具有一定的借鉴意义。
Resumen de: CN118480836A
本发明涉及一种电解水制氢阴极电极的制备方法，属于电极制备技术领域，包括包括如下步骤：步骤S1、除油：步骤S2、酸洗；步骤S3、镀氯化镍；步骤S4、电镀镍钴钌合金：步骤S5、烘干。本发明通过除油工序完全去除镍网表面的油污，通过酸洗工序可以完全去除镍网表面的氧化膜，通过镀氯化镍先在镍网表面电镀一层极薄的、结合力良好的完整镍层，然后通过电镀镍钴钌，在镍网表面得到结合力优良的镍钴钌合金镀层，从而获得析氢电位极低的阴极电极，降低了能耗。
Resumen de: CN118477640A
本发明涉及多孔结构的贵金属Ru基析氧催化剂的制备及应用，属于功能材料、能源技术领域。本发明采用快速氧化气凝胶结构的方式将过渡金属Mn掺杂到RuO2中制备了多孔固溶体RuMnOx酸性析氧催化剂。得益于该催化剂多孔结构的性质，与商业以及同等条件制备的RuO2相比，该方式获得的催化剂具有非常优异的酸性析氧活性。另外，引入过渡金属Mn调节了催化剂的微观局部电荷结构并抑制了Ru在酸性下的溶解，这不仅提升了催化剂的反应效率，而且也改善了催化剂的稳定性，使其具有较高的活性和长久的稳定性，这为Ru基催化剂的实际应用提供了策略。
Resumen de: CN118480798A
本发明涉及一种高熵化FeCoNiCuMoOx/NiFeSy/CC非晶合金复合催化电极的制备方法，属于电催化技术领域。本发明碳布电极经HCl溶液活化，再经脉冲电沉积制备出复合电极前驱体，复合电极前驱体和硫脲同时置于氮气氛围中退火处理得到NiFeSy/CC电极，NiFeSy/CC电极再经脉冲电沉积制备出高熵化FeCoNiCuMoOx/NiFeSy/CC非晶合金复合催化电极。本发明高熵化FeCoNiCuMoOx/NiFeSy/CC非晶合金复合催化电极的活性位点较多，工作电极具有多样化的特点，酸碱体系均可，具有比表面积大，催化性能好，稳定性能高的特点。
Resumen de: WO2023118088A1
A separator for an electrolytic cell alkaline electrolysis (1) characterized in that the separator has a residual non-aqueous solvent amount of less than 5 wt%, relative to the total dry weight of the separator.
Nº publicación: CN118477653A 13/08/2024
Solicitante:
山东建筑大学山东省中科低碳科技有限公司
Resumen de: CN118477653A
本发明提供了一种WO3/FeOOH异质结复合薄膜及其制备方法和应用，涉及薄膜材料制备领域。本发明提供的WO3/FeOOH异质结复合薄膜，由三氧化钨薄膜和原位生长在所述三氧化钨薄膜表面的羟基氧化铁组成，所述三氧化钨薄膜原位生长在基体表面。本发明中WO3和FeOOH均为可见光响应的半导体光催化材料，WO3和FeOOH经过耦合后形成WO3/FeOOH异质结，具有优异光电催化性能；同时本发明通过晶种介导的方式在基体表面原位生长复合薄膜，利于光生载流子在循环电路中的快速传输，降低复合薄膜与基体的界面阻抗；同时提高复合薄膜与基体的结合力。
BOPI
Sede Electrónica
