109 results about "Hydrogen synthesis" patented technology

This invention belongs to the field of peak-shaving technology for thermal power units, specifically a deep peak-shaving method for thermal power units that combines electrolytic hydrogen production with ammonia synthesis and energy storage. It integrates an electrolytic hydrogen production with ammonia synthesis and energy storage system, an energy comprehensive utilization system, and a collaborative control system to form a closed-loop peak-shaving system: during off-peak periods, excess electricity from the thermal power unit is collected; during peak periods, the stored ammonia is used to supplement the unit's energy through coal-ammonia co-firing, while oxygen is utilized for oxygen-enriched combustion to enhance peak-shaving and stable combustion capabilities. The synthesized ammonia can also replace purchased ammonia for flue gas denitrification. Through the collaborative control system, the operation of each link is coordinated, achieving efficient energy conversion and precise control. This invention significantly improves the deep peak-shaving and peak-response capabilities of thermal power units, substantially reduces carbon and pollutant emissions, optimizes energy utilization efficiency, extends equipment lifespan, and provides strong support for the green transformation of coal-fired power and the stable operation of new power systems.

The invention discloses a method for preparing three-dimensional graphene foam from organic silicon waste liquid, the three-dimensional graphene foam and application, and the preparation method comprises the following steps: (1) preheating and evaporating the organic silicon waste liquid to obtain organic silicon waste liquid steam, and mixing the organic silicon waste liquid steam with water vapor to obtain organic silicon waste liquid steam; then hydrolyzing in an inert atmosphere with a carrier gas flow rate of 100-1000 sccm, cooling, filtering to obtain synthesis gas, and passing the synthesis gas through an alkaline substance to obtain purified synthesis gas; (2) introducing the purified synthesis gas into a reaction furnace, carrying out a chemical vapor deposition reaction by taking foamed nickel as a substrate to obtain a three-dimensional graphene foam initial product and hydrogen-rich synthesis gas, and then preparing the hydrogen-rich synthesis gas on the surface of the three-dimensional graphene foam initial product according to the dosage per unit area of 0.2-1.0 mL / cm < 2 >, an anisole solution proppant of polymethyl methacrylate with the mass content of 5%-10% is coated, and then the three-dimensional graphene foam is obtained through acid etching. The three-dimensional graphene foam prepared by the method has excellent conductivity, is suitable for the field of functional materials such as electromagnetic shielding materials, and has a good industrial application prospect.

The application relates to a preparation and application of a molybdenum and indium co-modified cobalt-based catalyst for carbon dioxide hydrogenation synthesis of low-carbon alcohol, belonging to the field of catalysis. Co is used as an active component, In and Mo components are introduced, an alkali metal K additive is introduced, an In and Mo co-modified Co-based oxide precursor is created by adopting a sol-gel method, the precursor is reduced by hydrogen, and is further activated by CO2+H2, so that the In and Mo co-modified Co2C catalyst is obtained; the catalyst is used in a reaction of carbon dioxide hydrogenation for preparing low-carbon alcohol, under the condition that the reaction temperature is 340 DEG C and the reaction pressure is 3 MPa, the carbon dioxide conversion rate is more than 35%, and the low-carbon alcohol selectivity is close to 20%.

The present disclosure relates to a kind of renewable energy electrolytic water hydrogen synthesis ammonia system synergic control method and device, the method includes: according to the predicted power generation of target renewable energy electrolytic water hydrogen synthesis ammonia system corresponding, determine its corresponding full-day multi-period simulated hydrogen production power, and full-day multi-period simulated ammonia production power;Real-time monitoring is carried out to target renewable energy electrolytic water hydrogen synthesis ammonia system, determines its corresponding real-time power generation and real-time hydrogen inventory;According to real-time power generation, real-time correction adjustment is carried out to full-day multi-period simulated hydrogen production power, determines full-day multi-period real-time hydrogen production power;According to real-time hydrogen inventory, real-time correction adjustment is carried out to full-day multi-period simulated ammonia production power, determines full-day multi-period real-time ammonia production power.The embodiment of the present disclosure can realize the multi-time scale synergic control optimization of renewable energy electrolytic water hydrogen synthesis ammonia system, reduce the abandonment rate of renewable energy, improve energy utilization and system benefit and stability.

The utility model discloses a hydrogen sulfide synthesis skid-mounted system which comprises a liquid sulfur transfer module, a hydrogen sulfide synthesis module, a product gas pretreatment module, a product gas purification module, a tail gas treatment module and a public engineering module, the liquid sulfur transfer module, the hydrogen sulfide synthesis module, the product gas pretreatment module, the product gas purification module and the tail gas treatment module are sequentially communicated, and the product gas pretreatment module and the product gas purification module are both communicated with the liquid sulfur transfer module. According to the hydrogen sulfide synthesis skid-mounted system disclosed by the utility model, each functional component is modularized, the size of each module is configured in a coordinated manner and meets the transportation condition, corresponding process pipelines, instrument components, cables and the like can be prefabricated and mounted when leaving a factory, and debugging work can be carried out only by simple assembly and construction on a construction site; the workload of a construction site is greatly reduced, waste of installation materials is effectively reduced, and the device has the advantages of being small in occupied area, low in construction cost and the like.

This invention discloses a combined graphite hydrogen chloride synthesis furnace jacket, relating to the field of synthesis furnace technology. The invention includes a graphite hydrogen chloride synthesis furnace body, on which a jacket body is mounted. An adjustment assembly is provided on the surface of the jacket body, including an adjustment box fixedly connected to the outer wall of the jacket body. An inner tube is disposed inside the jacket body. A drive motor is fixedly connected to the top of the inner cavity of the adjustment box, and a rotating rod is fixedly connected to the output end of the drive motor. The invention uses the drive motor to rotate the rotating rod, which in turn rotates a first bevel gear, which in turn rotates a second bevel gear, which in turn rotates a screw. The screw moves a sliding sleeve, which in turn moves the inner tube, adjusting the distance between the inner tube and the outer wall of the graphite hydrogen chloride synthesis furnace body to maintain temperature uniformity.

The application provides a method for carbon dioxide capture and hydrogenation synthesis of methanol based on a eutectic solvent, and belongs to the technical field of carbon capture and utilization. The method comprises the following steps: weighing acetyl guanidine and ethylene glycol according to a proportion, mixing the acetyl guanidine and the ethylene glycol, stirring to prepare a eutectic solvent at a given temperature, capturing carbon dioxide in flue gas by using the eutectic solvent to form a rich liquid, transferring the rich liquid into a high-pressure reaction kettle, adding a catalyst, filling in hydrogen, increasing the temperature to perform a carbon dioxide hydrogenation reaction, filtering to obtain a catalyst and a mixture of the eutectic solvent and methanol after the reaction, and performing flash evaporation on the mixture to obtain product methanol and regenerated eutectic solvent. After capturing carbon dioxide in the flue gas, the method directly performs in-situ carbon dioxide hydrogenation in the absorbent to prepare methanol, avoids problems such as high energy consumption of carbon dioxide desorption, high reaction temperature and low single-pass conversion rate in a traditional gas-solid phase reaction process, and has a simple process and easy regeneration of the eutectic solvent.

The invention belongs to the technical field of automatic ignition of hydrogen chloride synthetic furnaces, and particularly relates to an automatic ignition preparation system and method for a hydrogen chloride synthetic furnace, and the system comprises a hydrogen pipeline control and detection valve group, a chlorine pipeline control and detection valve group, an automatic ignition gun control and detection device, a nitrogen replacement valve group and a synthetic furnace main body process detection device, the DCS control system is connected with the main control system; according to the automatic ignition preparation system for the hydrogen chloride synthetic furnace, a hydrogen pipeline control and detection valve group, a chlorine pipeline control and detection valve group, an automatic ignition gun control and detection device, a nitrogen replacement valve group and a synthetic furnace main body process detection device are integrated, a DCS (Distributed Control System) is matched, and a dual mode of program automatic judgment and manual confirmation is adopted; the safety and the ignition success rate of the automatic ignition process are improved, the process and automation of preparation items before ignition are realized, the explosion accident of the synthetic furnace caused by misoperation of personnel or improper confirmation is effectively avoided, and the production safety is guaranteed.

The invention discloses a method for efficiently and continuously hydrogenating and synthesizing hydrogenated bisphenol A through an ultrasonic-assisted microreactor, and belongs to the technical field of chemical reaction engineering. Aiming at the problems of easy excessive hydrogenation of products and many byproducts caused by slow multiphase mass transfer speed and long reaction time in the hydrogenated bisphenol A synthesis process, the invention adopts an ultrasonic-assisted microreactor technology to further enhance the gas-liquid-solid three-phase mass transfer efficiency, reduce the reaction time and temperature, and improve the yield of hydrogenated bisphenol A. Therefore, high-efficiency hydrogenation is realized under mild conditions, and the product yield and safety are improved. Compared with a common hydrogenation reactor, the method is based on an ultrasonic-assisted microreactor strengthening strategy, the reaction time is shortened to be within 2 minutes, complete conversion of raw materials is achieved, and the product purity is higher than 99%. The method provided by the invention realizes continuous and automatic operation of bisphenol A hydrogenation reaction, has remarkable economical efficiency, green environmental protection property and safety, and is suitable for large-scale industrial production.

The invention provides an electricity-hydrogen-ammonia integrated system scheduling method and system considering thermal inertia of a synthetic ammonia reactor, and relates to the technical field of renewable energy hydrogen production and synthetic ammonia, and the method comprises the following steps: modeling a thermal balance relation of the synthetic ammonia reactor, and constructing a dynamic thermal process model of the synthetic ammonia reactor; wherein the dynamic thermal process model depicts the dynamic association between the temperature response and each factor of feeding airflow and reaction heat release; converting the dynamic thermal process model into a constraint condition of a scheduling level, integrating the constraint condition into a scheduling framework of the electro-hydrogen-ammonia integrated system, and constructing a complete scheduling model by taking the total operation cost of the system as a target function and combining the operation constraint of each unit; and solving by taking the new energy output data as the input of the scheduling model, outputting an optimized production scheduling scheme of the electricity-hydrogen-ammonia integrated system, and performing scheduling operation according to the output optimized production scheduling scheme. According to the scheme, the problem that in an existing scheme, thermal inertia is ignored, so that system reliability and safety performance are low can be solved.

The invention belongs to the technical field of fine chemical engineering, and particularly discloses a method for synthesizing mixed phenylenediamine through hydrogenation of mixed dinitrobenzene. The method comprises the following steps: adding mixed dinitrobenzene, a polar solvent and a catalyst into a jet type supergravity multi-phase reaction device, enabling the mixed dinitrobenzene and the polar solvent to circularly flow in the jet type supergravity multi-phase reaction device in a hydrogen atmosphere, and reacting to obtain mixed phenylenediamine; the jet type supergravity multiphase reaction device comprises an annular reaction kettle, a jet ejector, a supergravity rotary drum, a heat exchanger, a circulating pump, a gas circulating pipeline and an ejector air suction port. The synthetic method of mixed phenylenediamine disclosed by the invention has the characteristics of high mass and heat transfer efficiency, substantial improvement of hydrogenation efficiency, intrinsic safety, greenness and high efficiency, and has a wide industrial application prospect.

The invention provides a method for synthesizing a quinoline compound by catalytic dehydrogenation of a tetrahydroquinoline compound, which comprises the following steps: adding a bivalent palladium catalyst, a Bronsted acid, an additive and an oxidant into an organic solvent, and then adding the tetrahydroquinoline compound for reaction to obtain the quinoline compound, the additive is sodium tetrakis (3, 5-bis (trifluoromethyl) phenyl) borate; the oxidizing agent is tert-butyl hydroperoxide or hydrogen peroxide. According to the method, the quinoline compound can be efficiently synthesized through catalytic dehydrogenation of the tetrahydroquinoline compound, the reaction conditions are mild, operation is easy, the catalyst cost is low, and the method has high substrate functional group tolerance and a wide substrate application range.

This application provides a method for CO2 hydrogenation to olefins, comprising the following steps: adding a CO2 hydrogenation to olefins catalyst to a CO2 hydrogenation to olefins reactor; introducing a reaction gas into the CO2 hydrogenation to olefins reactor to carry out the CO2 hydrogenation to olefins reaction; the reaction gas contains CO2, H2, and C2H4. The catalyst comprises zinc, iron, and sodium elements, wherein, based on the mass of the catalyst, the mass percentage of zinc is 25%–60%, the mass percentage of iron is 35%–70%, and the mass percentage of sodium is 0.01%–5%. The main crystalline phases of the catalyst are α-iron and zinc oxide, and the catalyst also includes sodium ions. The molar ratio of CO2, H2, and C2H4 in the reaction gas is 1:(2–3):x, where x satisfies: 0.09 ≤ x ≤ 1.

The present application belongs to the technical field of solid waste resource utilization, and relates to a method for realizing full-component resource utilization of mineral oil-containing waste and semi-coke through synergistic gasification, comprising the following steps: S1, pyrolyzing the mineral oil-containing waste to obtain high-temperature pyrolysis gas containing tar vapor and volatile components and pyrolysis residues; S2, mixing the high-temperature pyrolysis gas with semi-coke to obtain gas-solid mixture; S3, feeding the gas-solid mixture, the pyrolysis residues and an additive (metallurgical slag and vermiculite compounded at a mass ratio of 3-5:1) into a gasifier for gasification to obtain hydrogen-rich synthesis gas and gasification residues. Through the coupling of pyrolysis-gasification process, the multifunctional integration of "adsorption-carbon source-catalysis" of semi-coke and the synergistic effect of the compounded additive, full-component resource utilization is realized. The H2 concentration in the obtained synthesis gas reaches 60%-65%, the H2 yield is as high as 1000 ml / g-mineral oil-containing waste dry basis, the carbon conversion rate is greater than or equal to 95%, and the gasification residues can be directly used for roadbed materials, realizing waste treatment with waste and high-value recycling.

This invention discloses a catalyst and method for the continuous synthesis of formamide from ammonium carbonate or ammonium bicarbonate, belonging to the field of chemical technology. The catalyst is a boron-nitrogen co-doped activated carbon supported palladium catalyst prepared by using a palladium precursor, boric acid, and nitrogen-doped activated carbon. The method uses ammonium carbonate solution or ammonium bicarbonate solution as raw material, and in a continuous flow reactor, the above-mentioned catalyst catalyzes the hydrogenation of ammonium carbonate or ammonium bicarbonate to synthesize formate. The formate is then dehydrated to obtain formamide. The catalyst of this invention has advantages such as high activity and high stability, and can efficiently and stably produce ammonium formate in a continuous flow reactor, which can then be further dehydrated to obtain formamide, thus providing a green, low-carbon, and safe method for the synthesis of formamide.

The invention discloses a layered operation control method and system for a biogas production, storage and utilization integrated system. The method comprises the following steps: acquiring a system operation state and external environment information; constructing a monthly-level planning layer, optimizing a cross-seasonal gas storage target based on long-term prediction, and considering anaerobic fermentation slow process dynamics; a hour-level scheduling layer is constructed, a hydrogen production and power generation plan is made by adopting model prediction control based on short-term prediction, and biosynthetic hydrogen injection rate change rate punishment is introduced; a minute-level real-time control layer is constructed, a rolling tracking plan is predicted based on an ultra-short term, and a quick response loop is designed to meet sudden green power consumption, peak regulation and frequency modulation requirements; and feeding back the real-time operation data to an upper layer to carry out model parameter self-adaptive updating. According to the method, multi-scale prediction information is fused, fast and slow processes are coordinated, efficient green power consumption and flexible power grid support are realized, and the method can be widely applied to optimized operation control of a biological natural gas preparation and storage system.

The invention relates to the technical field of energy conversion and environment, in particular to a coal hydrogen-rich synthesis gas and raw coal upgrading system and method based on iron ore particles. The system comprises: a chemical looping gasification unit, which is used for producing hydrogen-rich gas through a reaction of an iron ore oxygen carrier in an oxidation state with clean coal in a reactor; wherein the iron ore oxygen carrier in the oxidation state plays roles in catalytic oxidation and synthesis gas quality adjustment, and after the iron ore oxygen carrier is changed into the reduction state, the iron ore oxygen carrier is regenerated into the oxidation state through oxidation reaction with air in the reactor; the inactivated oxygen carrier treatment unit is used for crushing and screening the inactivated oxygen carrier in the reactor to obtain a dense medium; and the separation fluidized bed unit is used for separating the coal particles through a two-phase flow formed by fluidizing gas and a dense medium so as to separate clean coal and tailings. According to the method, full-process and efficient utilization of the cheap iron ore particles is achieved, and quality improvement and ash reduction of the coal are achieved while the gasification efficiency is improved.

The application discloses a carbon dioxide hydrogenation synthesis methanol system and method, relates to the technical field of methanol synthesis, and comprises a PEM electrolysis hydrogen production unit, a hydrogen pressure reducing valve, a direct air carbon capture unit, a carbon dioxide pressure reducing valve, a first buffer tank, a pressure increasing unit, a second buffer tank and a reaction unit. The hydrogen output end of the PEM electrolysis hydrogen production unit is connected with the input end of the hydrogen pressure reducing valve, the output end of the hydrogen pressure reducing valve is connected with the inlet of the first buffer tank, the carbon dioxide output end of the direct air carbon capture unit is connected with the input end of the carbon dioxide pressure reducing valve, the output end of the carbon dioxide pressure reducing valve is connected with the inlet of the first buffer tank, the outlet of the first buffer tank is connected with the input end of the pressure increasing unit, the output end of the pressure increasing unit is connected with the inlet of the second buffer tank, and the outlet of the second buffer tank is connected with the reaction unit. The application can realize the cooperation of stable pressure of a gas source, uniform mixing, efficient pressure increasing and stable reaction, reduces equipment investment and energy consumption, and is suitable for a green electricity driven operation scene.

The invention relates to a preparation process of a bifunctional Ru / C catalyst applied to coupling thermocatalytic methanol dehydrogenation and electrocatalytic hydroxidation reaction, belonging to the technical field of methanol hydrogen production. TDI industrial waste residue is used as a raw material, and through the links of pyrolysis activation, supercritical methanol modification, bimetal freezing loading, activation, interface bonding construction, hydrophobic layer coating and the like, the Ru / C catalyst is prepared. The catalyst solves the problems that an existing Ru / C catalyst is sensitive to CO poisoning, easy to sinter at a high temperature, high in component and the like, the Ru utilization rate is high, the activity attenuation is reduced after long-time operation, the components are effectively reduced, and the catalyst is suitable for the process requirements of methanol hydrogen production-synthesis gas co-production.

The application provides a method for synthesizing ethanol and liquid hydrocarbon by CO2 hydrogenation and an iron-based catalyst thereof, and the method comprises the following steps: taking carbon dioxide and hydrogen as raw materials, and under the conditions of 250-330 DEG C, 3-5 MPa and the presence of a catalyst, ethanol and liquid hydrocarbon are generated by reaction; the catalyst is a supported iron-based catalyst, the active phase composition of the catalyst comprises Fe, Fe3O4, Fe7C3 and Fe5C2, the liquid hydrocarbon is a hydrocarbon with carbon number greater than or equal to 5, and the volume ratio of the carbon dioxide to the hydrogen is 1:2-1:5. Based on the single system iron-based catalyst, the carbon dioxide can be converted into high value-added ethanol and liquid hydrocarbon products by one-step hydrogenation, the CO2 conversion rate is greater than 40%, the total selectivity of ethanol+liquid hydrocarbon is greater than 50%, and the selectivity of CO by-product is less than 10%.

The utility model discloses a tail gas treatment system for polycrystalline silicon production, which is used for treating tail gas absorbed by a falling film, and comprises a tail gas washing tower for removing hydrogen chloride in the tail gas; the tail gas treated by the tail gas washing tower is suitable for being input into the tail gas buffer tank; tail gas in the tail gas buffer tank is suitable for being pressurized through the tail gas compressor, and the pressurized tail gas can be recycled; the tail gas pressurized by the tail gas compressor is suitable for being conveyed to the hydrogen buffer tank; gas in the hydrogen buffer tank is suitable for being input into the hydrogen chloride synthesis furnace, the hydrogen chloride synthesis furnace is further provided with a chlorine conveying pipeline, and chlorine and hydrogen are synthesized into hydrogen chloride in the hydrogen chloride synthesis furnace. The treatment system provided by the utility model is simple to operate, the safety and environmental protection property in the production process are improved, and hydrogen is recycled, so that the production cost is reduced.

The utility model relates to the field of safe use and explosion prevention of a fire observation mirror of a hydrogen chloride synthetic furnace, and provides an explosion-proof hydrogen chloride fire observation device which comprises the hydrogen chloride synthetic furnace, a gas injection channel is arranged on the circumferential surface of the hydrogen chloride synthetic furnace, and a control valve is arranged on the circumferential surface of the gas injection channel. And an explosion-proof mechanism is arranged on the side surface of the hydrogen chloride synthesis furnace. The sealing turbine ball valve can be installed on the circumferential face of the hydrogen chloride synthesis furnace by a worker, then the explosion-proof sight glass is installed between the fire observation mirror and the sealing turbine ball valve through the short circuit and the reducing short circuit, and when the short circuit and the explosion-proof sight glass need to be cleaned, the sealing turbine ball valve is used for sealing the explosion-proof sight glass. By means of the design, the explosion-proof effect is achieved, the leakage risk of the fire observation mirror is greatly reduced, the cleaning and maintenance effects are achieved, cleaning and maintenance are effectively and conveniently conducted, and the maintenance difficulty and workload are reduced.

The application discloses a hierarchical operation control method and system for a bio-natural gas production and storage integrated system, and the method comprises the following steps: acquiring system operation states and external environment information; constructing a monthly planning layer, optimizing cross-seasonal gas storage targets based on long-term prediction, and considering slow process dynamics of anaerobic fermentation; constructing an hourly scheduling layer, formulating hydrogen production and power generation plans based on short-term prediction and model prediction control, and introducing a hydrogen synthesis hydrogen injection rate change rate penalty; constructing a minute-level real-time control layer, rolling tracking plans based on ultra-short-term prediction, and designing a rapid response loop to respond to sudden green electricity consumption, peak regulation and frequency regulation demands; and feeding back real-time operation data to the upper layer for adaptive updating of model parameters. The application integrates multi-scale prediction information, coordinates fast and slow processes, realizes efficient consumption of green electricity and flexible support of the power grid, and can be widely applied to the optimal operation control of bio-natural gas production and storage systems.

The invention relates to an electro-hydrogen ammonia coupling system configuration and operation optimization technology, and aims to provide a scheduling method for hydrogen production and ammonia synthesis through water electrolysis with intraday flexible adjustment. Comprising the following steps: slicing annual hourly data monthly and then layering in a rank space, and selecting a representative month to construct a feature matrix; introducing an intraday flexible adjustment mechanism, and describing the synthetic ammonia load as a continuous piecewise linear operation curve; constructing a unit ammonia production power consumption function taking per unit load of synthetic ammonia as an independent variable and a synthetic ammonia section electric power model capable of being linearly solved; and constructing a full-chain mixed integer linear programming model of the system, taking the minimum annual total cost as a target, carrying out annual weighted solution according to the representative monthly weight, and obtaining an annual optimal system configuration and operation scheduling result. According to the method, sparse distribution of the adjusting sections can be achieved, sawtooth fluctuation and invalid micro-amplitude adjustment of a load curve are effectively inhibited, the climbing frequency of the synthetic ammonia load is reduced, and the operation performability and the service life friendliness of equipment are improved.

This utility model relates to the technical field of hydrogenation reactors and discloses a liquid-phase hydrogenation synthesis reactor, including a liquid-phase hydrogenation reactor body and a fixed frame fixedly installed at the bottom of the liquid-phase hydrogenation reactor body. A feed pipe is fixedly installed through the middle of the top of the liquid-phase hydrogenation reactor body. Through the cooperation of components such as a movable plate, vertical plate, screw, knob, trapezoidal extrusion block, trapezoidal block, L-shaped rod, snap-fit ​​plate, side plate, telescopic spring, fixed block, snap-fit ​​rod, snap-fit ​​block and circular scraper, the circular scraper can scrape off the raw materials adhering to the inside of the feed pipe, improving the utilization rate of raw materials. In addition, the circular scraper can be disassembled and cleaned to avoid poor scraping effect after long-term use. The semi-circular ring can cooperate with the circular scraper to seal the feed pipe, preventing dust and impurities from entering after feeding, resulting in good performance.

The invention discloses a carbon dioxide hydrogenation methane synthesis system adapting to hydrogen source fluctuation, and solves the technical problems of high equipment investment, large occupied area and potential safety hazards caused by the fact that an existing methanation reaction system depends on a hydrogen storage buffer device to stabilize hydrogen source fluctuation. Comprising a raw material supply unit, a preheating unit, a reaction unit, a waste heat recovery unit, a cooling separation unit, a circulation unit and a control unit, a flow detection device is arranged on a hydrogen feeding pipeline of the raw material supply unit, a raw material preheater of the preheating unit performs primary preheating on mixed raw material gas, and an electric heater performs secondary heat compensation; the reaction unit comprises a first-stage adiabatic reactor and a second-stage adiabatic reactor, the waste heat recovery unit comprises a first-stage steam generator and a second-stage steam generator, and a main outlet pipeline connected with a gas phase outlet of a water segregator of the cooling separation unit is divided into a delivery pipeline and a circulating pipeline; and the control unit performs cooperative adjustment by taking the fresh hydrogen flow as a feed-forward variable.

The invention discloses a method for synthesizing sustainable aviation kerosene through CO2 hydrogenation in biogas. The method comprises the following steps: taking Fe / Mn-CaO as a CO2 adsorption separating agent, taking NiMoGa ternary liquid metal as a catalyst for methane decarbonization hydrogen production, and taking a metal oxide-molecular sieve as a catalyst for synthesizing aryl aviation kerosene through CO2 hydrogenation. According to the metal oxide-molecular sieve catalyst for synthesizing the aromatic sustainable aviation kerosene through CO2 hydrogenation, a metal oxide (ABO3) with a perovskite structure is synthesized through a sol-gel method, and the metal oxide (ABO3) is physically mixed with a molecular sieve; a in ABO3 is lanthanum, and a B element comprises iron, chromium, cobalt or nickel; the molecular sieve contains ZSM-5 (Zeolite Socony Mobil-5), ZSM-11 (Zeolite Socony According to the oxide catalyst disclosed by the invention, a polydentate chelate is formed by metal nitrate and citric acid, and a special perovskite structure can be formed through simple drying and roasting, so that the oxide catalyst has excellent carburization resistance, and a formed oxygen-containing intermediate is diffused into a zeolite molecular sieve to form aromatic aviation kerosene; the preparation of aryl aviation kerosene from bio-based CO2 hydrogenation is realized.

The utility model relates to the technical field of hydrogen sulfide synthesis, in particular to a hydrogen feeding and cooling device of a hydrogen sulfide synthesis tower, which comprises a first barrel and a second barrel, and further comprises a second cooling component arranged in the first barrel and capable of accelerating the hydrogen cooling speed, and the feeding assembly is arranged on one side of the second barrel and is used for conveniently inputting high-temperature hydrogen into the first barrel. The contact area with high-temperature hydrogen can be increased to the greatest extent through the second cooling assembly, so that heat exchange between the high-temperature hydrogen and the heat conduction cylinder is more thorough, and the contact area between the high-temperature hydrogen and the cooling component is further increased in cooperation with the first cooling assembly, so that heat brought into the hydrogen sulfide synthesis tower by the hydrogen is effectively reduced, and the service life of the hydrogen sulfide synthesis tower is prolonged. The temperature of a reactor bed layer is favorably controlled, and the condition of frequent overtemperature of the catalyst bed layer is avoided; and the second cooling assembly can be conveniently disassembled, assembled and overhauled through a limiting stud and a fastening bolt, and dirt on the outer side of the second cooling assembly can be conveniently cleaned and maintained.

The present application relates to renewable energy consumption and hydrogen energy storage and supply technology, and aims to provide a hydrogen synthesis storage and supply system and method for fluctuation smoothing and spontaneous power generation. The method comprises: using a compressor unit and a hierarchical energy storage device to replace a storage battery, replacing the charging and discharging process of the traditional battery technology by a hydrogen storage-hydrogen use process; controlling the operation number of the self-compressor unit according to the remaining available power after photovoltaic power generation and hydrogen production, and switching the hydrogen source according to the operation state of the pressure potential recovery power generation unit; using the relatively low power operation of the compressor unit and the inter-stage air supplement-high pressure storage strategy to improve the photovoltaic utilization rate under the non-rated power full-stage operation condition; and recovering the pressure potential in the hydrogen storage container to generate power, thereby achieving the power supplement of the chemical production device. The present application can greatly reduce the maintenance cost, has no electrochemical decay and thermal runaway risk, significantly improves the photovoltaic utilization rate in the whole life cycle, does not involve chemical conversion, and has very high efficiency.

The application discloses a kind of hollow multi-level hole MO x / Hβ Catalyst preparation method and application in CO2 hydrogenation synthesis high-density aviation fuel, the catalyst is by MO x With hollow multi-level hole Hβ Molecular sieve is mixed and grinded evenly, MO x Zn, Zr composite metal oxide, the preparation of Hβ Molecular sieve includes: in the aqueous solution containing lithium hydroxide, alkaline organic template agent, zinc source, dropwise adding colloidal silica reagent, after hydrothermal crystallization treatment, washing, drying, calcination, then with aluminum source in alkaline organic template agent aqueous solution again crystallization treatment, washing, drying, calcination, after ion exchange treatment calcination, preparation is completed.The application constructs hollow multi-level hole Hβ Molecular sieve by isomorphism induced crystallization, utilizes its cavity structure and multi-level pore to reduce macromolecular diffusion resistance, increases the exposure degree of acidic site, strengthens the function coupling between MO x Metal oxide active site, improves its catalytic performance.