152 results about "Aviation kerosene" patented technology

The invention relates to a heterogeneous catalysis technology, and aims to provide a method for improving the yield of components of aviation kerosene prepared by ethylene oligomerization through combination of a fixed bed and a slurry bed. Comprising a fixed bed reactor and a slurry bed reactor which are sequentially connected in series, the fixed bed reactor is filled with a metal modified mesoporous zeolite molecular sieve catalyst, and the slurry bed reactor is filled with a mesoporous zeolite molecular sieve catalyst. The method comprises the following steps: firstly, carrying out ethylene oligomerization reaction in a fixed bed reactor to generate a product containing C4-C8 olefin; the reaction product is directly introduced into the fixed bed reactors connected in series for secondary reaction, and the final product comprises C5-C16 + liquid phase olefin as an aviation fuel component. By adopting a fixed bed-slurry bed reactor combined method, the ethylene conversion rate can be greatly improved; secondary oligomerization is carried out by using an acidic mesoporous zeolite molecular sieve catalyst, so that the selectivity of aviation kerosene components is improved; the mesoporous catalyst prepared by an alkali treatment method has a good diffusion effect and keeps high activity for a long time.

The invention relates to the technical field of biological aviation kerosene, and discloses a process for preparing biological aviation kerosene from waste grease. The method comprises the following steps: introducing waste oil into a hydrofining reactor, introducing hydrogen, carrying out a hydrodeoxygenation reaction under the catalysis of a hydrogenation catalyst, carrying out a reaction on the obtained hydrodeoxygenated oil in an isomerization pour point depressing reactor, and finally carrying out isomerization hot high-pressure separation treatment, isomerization cold high-pressure separation treatment and rectification tower segmentation to obtain the biological aviation kerosene. The specific surface area of a carbon matrix of the hydrogenation catalyst is large, the void structure is rich, a large number of Ni-Mo-P active catalytic centers can be exposed, precious metals such as platinum and ruthenium do not need to be added, the hydrodeoxygenation reaction efficiency of waste oil and fat is remarkably improved, the mass fraction of branched paraffin and cycloparaffin in biological aviation fuel is high, and the combustion performance is better.

The application provides a continuous hydrogenation-isomerization method capable of meeting the treatment requirements of biological oils, especially waste oils, using a homogeneous hydrogenation process with strong adaptability to raw materials as a raw material pretreatment process, and matching a high-activity nanometer transition metal sulfide catalyst. On this basis, a catalytic distillation process is used for selective cracking of long-chain alkanes to improve the yield of medium and long-chain alkanes; an ultramicro flow hydrogen gas mixer and a reduced non-noble metal hydrogenation-isomerization catalyst are used to reduce the hydrogen / oil ratio and the energy consumption of the circulating hydrogen system, and to reduce the production cost of the catalyst, so as to finally realize efficient and low-carbon conversion of waste oils, and low-cost and high-selectivity preparation of biological aviation kerosene.

The invention discloses a method for monitoring tail gas emission of an aircraft refueling vehicle, and solves the problem that PM quantitative data acquisition is inaccurate in a complex environment of an airport. The method comprises the following steps: stably sampling and removing aviation kerosene steam through a sampling probe integrating sensing and flow guide adjustment; synchronously detecting and deducting background gas interference; performing secondary dehumidification and constant-temperature pretreatment on the tail gas; the double detection units are linked to collect multi-dimensional data, and a nonlinear interference correction model is constructed through fusion; and adopting an exclusive calibration mode and marking invalid data. The method further comprises the design of wind speed adaptation, condensation backflow prevention, working condition and area label optimization, double-link encryption transmission, safe installation, optical signal compensation, graded maintenance and the like. The method can resist multiple environmental interferences, PM detection errors are controllable, data updating is efficient, and airport safety operation and compliance monitoring requirements are met.

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 invention provides an intelligent control method, device and equipment for an aviation kerosene preparation system, and the method comprises the steps: obtaining various sample data, the various sample data comprises physical property parameters, distillation range distribution parameters and component content parameters of sample oil, and process parameters of the aviation kerosene preparation system; according to the multiple sample data, a long-short-term memory network algorithm and a physical information neural network algorithm, a prediction algorithm model is established, and the prediction algorithm model is at least used for predicting the yield of aviation kerosene of the aviation kerosene preparation system; according to the prediction algorithm model and the multiple sample data, determining the prediction yield of the aviation kerosene in a first preset time period and multiple operation parameters of the aviation kerosene preparation system in the first preset time period; and adjusting the process parameters of the aviation kerosene preparation system according to the predicted yield of the aviation kerosene and the plurality of operation parameters. The method solves the technical problem of unstable aviation kerosene yield in the aviation kerosene preparation process of the aviation kerosene preparation system.

The present application relates to the technical field of metal material plating, in particular to a kind of γ-TiAl material turbine blade sawtooth crown wear-resistant coating plating method, it includes multi-station special plating device and aviation kerosene oxygen mixed fuel supersonic flame spraying process.Plating device is divided into two kinds of linear arrangement and annular arrangement, respectively realize 15 pieces and 30 pieces of blade one time clamping plating, significantly improve efficiency;Device realizes accurate positioning and non-spraying area protection by positioning block, pressing plate assembly and other structures.Co-Mo-Cr-Si wear-resistant coating is plated by using supersonic flame spraying process, heat input is low, coating is dense, and bonding strength is high;Subsequent grinding processing makes coating surface roughness reach Ra<0.8 μm.The present application solves the problem of high heat input and low construction efficiency in the prior art, and meets the requirements of high precision and high reliability for aeroengine.

The utility model relates to the technical field of petrochemical engineering, and particularly discloses a cracking tail oil heat recovery system of a slurry bed residual oil hydrogenation device, which comprises a fractionating tower, a fractionating tower bottom pump, an aviation kerosene tower bottom heat exchanger, a debutanizer bottom heat exchanger, an isopentane tower bottom heat exchanger and a tail oil cold feed preheater, the fractionating tower bottom pump, the aviation kerosene tower bottom heat exchanger, the debutanizer bottom heat exchanger, the isopentane tower bottom heat exchanger and the tail oil cold feed preheater are sequentially arranged on the fractionating tower, and a tail oil discharge pipeline is arranged on the tail oil cold feed preheater. The tail oil temperature of the cracking device is reasonably utilized, the heat exchange process is optimized, efficient recovery of tail oil heat is achieved, the potential safety hazard of leakage of a heat exchange system of the isopentane tower is eliminated, temporary shutdown overhaul of the device caused by leakage of a heat exchanger is avoided, meanwhile, effective and stable control over the tail oil temperature is achieved, and the service life of the device is prolonged. The operation cost of tail oil air cooling is saved, and safe and stable operation of a heat exchange system of the device is effectively guaranteed.

The invention relates to the technical field of biofuels, and discloses an aviation kerosene biological alternative fuel based on multi-objective optimization, which is characterized in that a comprehensive selection index system comprising density, kinematic viscosity, thermodynamic characteristics (lower calorific value and hydrogen-carbon ratio) and molecular weight is established based on a multi-objective optimization model constructed by a genetic algorithm; the invention discloses a biological fuel formula for replacing RP-3 aviation kerosene by optimizing the design of biological alternative fuel components, the biological alternative fuel is prepared from the following components in parts by volume: 70-80 parts of second-generation biodiesel, 10-15 parts of tetrahydrofuran and 7-15 parts of isopropanol, the components are easy to obtain, the production process is simple, and the biological alternative fuel is suitable for large-scale production. The second-generation biodiesel, tetrahydrofuran and isopropanol are used as raw materials, the obtained biofuel has low kinematic viscosity, the low calorific value reaches 43 MJ / kg or above, the physicochemical property of the biofuel is similar to that of RP-3 aviation kerosene, and the biofuel has good substitutability and wide popularization value.

The present application relates to the technical fields of chemical synthesis, and discloses a kind of aviation kerosene production process and equipment, production process includes: carbon source gas, hydrogen, circulating gas is sent into main reactor reaction and obtains including hydrocarbon, methanol, CO, water and unreacted gas mixed component a;Mixed component a is sent into cascade reactor and is prepared to obtain including aviation kerosene component, light hydrocarbon component and water mixed component b, wherein light hydrocarbon component includes one or more of C2-C7 light hydrocarbon;Mixed component b is fractionally condensed to collect liquid phase and gas phase, and liquid phase is carried out three-phase separation to obtain aviation kerosene component, light hydrocarbon component and water respectively, aviation kerosene component is hydrotreated, fractionation to obtain aviation kerosene.The present application realizes the step-by-step control of reaction path in carbon source hydrogenation process through the synergistic effect of main reactor and cascade reactor, improves the selectivity of aviation kerosene target product, so that the obtained product meets the 3# aviation kerosene standard requirements in key indicators such as distillation range distribution, aromatic content and low temperature performance.

The present invention discloses a method for predicting the ignition of a scramjet combustion chamber, belonging to the technical field of ignition prediction. The method comprises the following steps: numerically simulating the combustion chamber using a three-dimensional density-based steady-state injection; determining whether convergence conditions have been met; extracting flow field data of the combustion chamber after convergence; and calculating the residence time t of aviation kerosene microclusters in the ignition region based on the flow field data. z ; Calculate the ignition delay time t of the ignition area based on the flow field data c Calculate Da in the ignition area. Predict ignition conditions based on Da. The scramjet engine combustion chamber ignition prediction method of the present invention calculates Da based on injection field data and predicts ignition success based on the relationship between Da and 1. This helps adjust actual ignition conditions and improve ignition success rates. It can meet the ignition prediction needs of combustion chambers of various configurations.

The application belongs to the technical field of aviation second power system, and discloses an airplane emergency power gas generating system and method based on water enhancement technology, wherein the system adopts fuel oil and high-pressure gas cylinder gas supply to combust in a gas generator, high-temperature and high-pressure gas is generated as the emergency power of the airplane; when the fuel oil and air are mixed and combusted in the gas generator, water is sprayed in the gas generator, water is used as the combustion coolant, and the compressed air amount used by the gas generator after combustion to generate unit gas is reduced. The aviation kerosene and high-pressure air are used as the fuel and oxidant, the fuel system has the advantage of good compatibility with the airplane, the compressed air amount used by the gas generator to generate unit gas is greatly reduced, the working time of the gas generator system is prolonged, the expensive catalyst is not used, and the problems of short service life of the gas generator system and high price of the catalyst of the traditional emergency power system are avoided.

The present application relates to a kind of aero-engine cold start auxiliary staged preheating system and control method, belong to aero-engine starting technical field;The present application is integrated preheating treatment to engine fuel, in-cylinder mixture thermodynamic state (in-cylinder thermal atmosphere before ignition) and lubricating oil by pipeline fuel preheating device, oil outlet preheating device, cylinder sleeve preheating device and lubricating oil heat preservation preheating device, coupling combustion parameter control strategy, according to the temperature gradient of plateau alpine low temperature environment, design four levels of plateau alpine cold start feedback control strategy, so that aviation kerosene pressure combustion engine provides and implements reasonable preheating scheme according to different low temperature low pressure environment outside in plateau alpine condition, can effectively solve the problem that aviation kerosene pressure combustion engine is difficult to cold start, starting time is long, engine parts wear seriously and cold start stability is poor and the like in plateau alpine environment.

The invention discloses a filtering device suitable for aviation kerosene and a filtering method thereof, and belongs to the technical field of aviation fuel purification and filtration. The cylinder shell, the annular supporting ribs and the main filter material form a filter cylinder, kerosene penetrates through the intervals of the annular supporting ribs from outside to inside and gathers in the central positioning shaft to be led out, in a quasi working state, the filter assembly is disassembled and transversely inserted into an inner cavity of the filter element socket, one end of the filter assembly is fixed in the inner cavity of the filter element socket, and the locking piece is driven to amplify thrust through the force amplifier; the pressing rod linearly extrudes the filter element, the threaded transmission sleeve is rotated through the spiral driving rod, so that the piston pressing disc compresses the cotton core at a constant speed, residual oil is recovered from the bottom liquid drainage hole in the axial direction, and the cotton core is taken out after squeezing; the filter element of the same cylinder is not replaced, only the inner-end fine filter layer is replaced by the reducing fine filter layer with a smaller inner diameter, the through-flow area is suddenly reduced, the local flow speed is increased, the surface of a main filter material is reversely washed, and impurities fall off; the reducing step generates secondary high pressure difference, the fiber gap is further compressed, and the precision is improved.

The invention relates to the technical field of biomass energy conversion, in particular to a method and system for preparing sustainable aviation kerosene through methanol based on biomass gasification. The method sequentially comprises the steps of biomass gasification, purification and proportion adjustment, methanol synthesis, methanol-to-olefin conversion, oligomerization reaction and hydrofining. The selectivity of a target component is effectively improved by regulating and controlling the H2 / CO molar ratio to 2.0-2.2 and realizing multi-section conversion and heat energy gradient recovery under middle and high pressure. The condensation point of the finished product can reach-48 DEG C, the aromatic hydrocarbon mass fraction is as low as 0.22%, and the aviation fuel standard requirements are met. The method has the advantages of being high in carbon utilization rate, excellent in product quality, low in energy consumption, suitable for large-scale operation and the like, and is suitable for green manufacturing of sustainable aviation fuel.

The invention provides a method for producing aviation kerosene by hydrogenation, which comprises the following steps: mixing raw material oil and hydrogen, sequentially feeding into a hydrofining reaction zone and a hydrocracking reaction zone for reaction, feeding the reaction effluent into a post-treatment reaction zone, and contacting with a post-treatment catalyst for reaction, the preparation method of the post-treatment catalyst comprises the following steps: S1, cooling and curing a solution containing a nickel source and gelatin to obtain gel, and mixing the gel with alumina dry glue powder to obtain an alumina powder intermediate; s2, carrying out molding and freeze drying on the alumina powder intermediate obtained in the step S1 to obtain a post-treatment catalyst precursor; and S3, impregnating the post-treatment catalyst precursor obtained in the step S2 with a solution containing a molybdenum source, a cobalt source and a nickel source, and carrying out curing, drying and roasting to obtain the final post-treatment catalyst. According to the method, the post-treatment catalyst with excellent olefin saturation and hydrogenation mercaptan removal performance is adopted, so that the quality of the aviation kerosene product is effectively improved.

The utility model provides a flow -equalizing pollution -bearing coalescing filter core belongs to aviation kerosene filtration purification technical field, including: filter core main part, filter core main part includes coalescing structure, and coalescing structure includes flow -equalizing orifice pipe, and flow -equalizing orifice pipe is provided with flow -equalizing opening, and the interval between flow -equalizing opening is reduced gradually from the direction of the inlet end of filter core main part to the other end thereof. The utility model discloses a flow -equalizing orifice pipe can flow aviation kerosene, effectively solve the problem of the flow of coalescing filter core inlet position too big in traditional technology, and the processing effect is not good, can greatly improve the overall dehydration effect of the utility model through the flow -equalizing orifice pipe. Through the special structure design of filter layer, the demulsification effect of filter core main part can be improved, and the pollution bearing capacity of coalescing filter core can be improved, the service life of the traditional coalescing filter core is solved, the structure design of filter layer can increase the service life of filter core, effectively reduces the economic loss and artificial cost caused by filter core replacement.

1. The name of the design product: aviation kerosene transfer vehicle. 2. The use of the design product: used for transfer transportation of aviation kerosene. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The present application relates to reactor equipment technical field, disclose green fluidized bed reactor for aviation kerosene production, including: cylinder, the bottom of cylinder is equipped with material inlet, the top of cylinder is equipped with material outlet;Distribution plate, multiple are arranged along the axial direction of cylinder, distribution plate is equipped with through hole, multiple distribution plates divide the inside of cylinder into multiple fluidized bed cavities;Solid communication pipe, it is arranged through distribution plate, solid communication pipe communicates upper and lower adjacent two layers fluidized bed cavities, and solid communication pipe is used to make the solid material in upper layer fluidized bed cavity into lower layer fluidized bed cavity;Gas communication pipe, it is arranged outside cylinder, and the both ends of gas communication pipe are connected with different layers fluidized bed cavities;Gas-solid separator, it is arranged in cylinder and is close to material outlet.The present application solves the technical bottleneck that bed temperature is difficult to control uniformly, and local overheating or low temperature zone is prone to appear in related technology through the collaborative design of multiple distribution plates, solid communication pipe and gas communication pipe.

The utility model discloses distillation equipment for biological aviation kerosene production, which relates to the technical field of distillation equipment and comprises an equipment main body, an electric push rod is fixedly connected to the outer wall of the equipment main body, and one end of the electric push rod is fixedly connected with a lifting plate slidably connected with the outer wall of the equipment main body. The outer wall of the lifting plate is rotationally connected with a pulling rod, and one end of the pulling rod is rotationally connected with a connecting rod. By arranging the pull rod, when auxiliary aviation kerosene production is carried out through distillation equipment, in order to improve the synchronous protection effect on a distillation head and the shielding protection effect on the top of a collecting box under the condition that an oil drum is switched for use, the lifting plate ascends through rotation of the pull rod; and a connecting rod fixedly connected with a limiting rod is driven to slide, so that a first protection plate moves to the position below the distillation head, a second protection plate moves to the top of a collection box, the situation that kerosene leaks and is wasted is reduced, and the aviation kerosene production efficiency of the distillation equipment is improved.

The present invention discloses a method for synthesizing polycyclic alkanes from phenols derived from lignin via a one-pot two-step process. 1) In the first step of the reaction, the phenolic compound derived from lignin is first converted into a ketone compound under the action of a hydrogenation catalyst, and then the ketone compound rapidly undergoes aldol condensation under the action of a solid acid to generate a jet fuel precursor; 2) In the second step of the reaction, the product of the first step is not separated, but the reaction conditions are directly strengthened. The jet fuel precursor is directly subjected to complete hydrodeoxygenation to generate polycyclic alkanes under the action of the hydrogenation catalyst and the solid acid in the first step; the phenolic compound derived from lignin is synthesized into polycyclic jet fuel by changing the reaction conditions in a single reaction vessel. Compared with traditional chain-like jet fuel, it has a higher density and a higher calorific value and can be used as a substitute for traditional aviation fuel. The catalyst and raw materials used in the present invention are abundant in source, low in price, and easy to separate; the entire production process is simple to operate.

According to the method for preparing the green fuel with the biomass as the raw material and the green fuel preparation system, biomass utilization, hydrogen production through water electrolysis and methanol synthesis are coupled, the overall material and energy utilization efficiency can be improved, and the emission of carbon dioxide is reduced. The method comprises the following steps: (1) feeding biomass into a biomass gasification unit for gasification reaction to obtain crude synthesis gas; (2) feeding the crude synthesis gas into a gas purification unit for treatment; (3) feeding the purified synthesis gas into a decarburization unit for treatment to obtain carbon dioxide and decarburized synthesis gas; feeding carbon dioxide and hydrogen into a methanol synthesis unit to react to generate methanol; (4) mixing the decarbonized synthesis gas with hydrogen to adjust the hydrogen-carbon ratio of the synthesis gas, and feeding the adjusted synthesis gas into a Fischer-Tropsch synthesis unit to obtain a Fischer-Tropsch synthesis product; and (5) feeding hydrocarbons with more than C5 into a cracking isomerization unit to be in contact with hydrogen for hydro-conversion, and fractionating to obtain a gasoline component and an aviation kerosene component.

The present application belongs to the technical field of biomass conversion and synthetic fuel, and relates to a method and system for preparing aviation kerosene by coupling green hydrogen and biomass gasification. The method comprises: preparing green hydrogen by electrolyzing water, and byproduct oxygen is used for biomass oxygen-enriched gasification; biomass is gasified in a fluidized bed at an oxygen partial pressure of 0.5-1 MPa and a temperature of 800-1000 DEG C to prepare syngas; the syngas is mixed with electrolytic hydrogen after pressure swing adsorption, methanol solution contact, low-temperature filtration and pressure reduction purification; the volume fraction of the feed hydrogen is stabilized at 70%-80% through online analysis and closed-loop control; crude oil is synthesized in a Fischer-Tropsch system taking methanol as a medium and carrier and oxalic acid as an adjusting agent; aviation kerosene fraction is obtained through rectification, and the heavy component is subjected to hydrocracking / isomerization by using a Pt-based catalyst. The present application effectively improves the stability of the feed hydrogen partial pressure and the product yield, and ensures the consistent quality of the aviation kerosene.

The invention relates to a method for preparing an aviation kerosene component through ethylene oligomerization, which comprises the following steps of: contacting an ethylene-containing raw material with an oligomerization catalyst to carry out oligomerization reaction to obtain an oligomerization product; separating the oligomerization product to obtain a gas product and a liquid product, and carrying out distillation separation on the liquid product to obtain a C5-C9 fraction and a C9 + fraction; wherein the molecular sieve in the oligomerization catalyst comprises an FER structure molecular sieve and at least one molecular sieve with a skeleton structure selected from MFI, MEL, FAU, BEA, MTT, MTW, MWW, MOR, TON and AEL. The oligomerization product obtained by the invention mainly comprises C5 + mixed hydrocarbon, and the conversion rate of ethylene and the yield of C9 + component in the product are obviously improved.

The invention discloses a biological aviation kerosene and diesel oil hydrogenation coupling system and a hydrogenation process. The hydrogenation coupling system comprises a biological aviation kerosene hydrogenation system and a diesel oil hydrogenation system; and a gas phase outlet of a thermal high-pressure separator of the diesel hydrogenation system is respectively connected with a material inlet pipeline of a hydrogen mixer I, a material inlet pipeline of a hydrogen mixer II and an outlet pipeline of a heat exchanger II of the biological aviation kerosene hydrogenation system. The hydrogenation process comprises the following steps: (1) mixing a biological aviation kerosene raw material with hot high-pressure separated gas, and reacting in the hydrodeoxygenation reaction unit; (2) mixing effluent of the hydrodeoxygenation reaction unit with hot high-pressure separated gas, and enabling the mixture to enter an isomerization reaction unit to be subjected to an isomerization reaction; and (3) mixing the effluent of the isomerization reaction unit with the hot high-pressure gas, cooling, and carrying out steam stripping fractionation to obtain the biological aviation kerosene product. The invention solves the problem of sulfur loss of the hydrodeoxygenation catalyst, reduces the destructive effect of water vapor on the catalyst, prolongs the operation cycle of the device, simplifies the process flow, and reduces the investment of the device.

The invention belongs to the field of unmanned aerial vehicle refueling, and particularly relates to an unmanned aerial vehicle refueling system and method. In order to reduce the occupied space of the refueling system and ensure that mixed fuel oil is evenly mixed, the unmanned aerial vehicle refueling system comprises a lubricating oil container, a refueling butt joint mechanism and an aviation kerosene container communicated with the refueling butt joint mechanism through a main pipeline, and a metering pumping mechanism is arranged on the main pipeline. The lubricating oil container is located above the main pipeline and communicated with the main pipeline through an auxiliary pipeline, and a flow valve is arranged on the auxiliary pipeline. The communicating position of the auxiliary pipeline and the main pipeline is located on the downstream of the metering pumping mechanism, and a pipeline stirrer is arranged on the portion, located between the communicating position of the auxiliary pipeline and the main pipeline and the refueling butt joint mechanism, of the main pipeline. The invention further correspondingly provides an unmanned aerial vehicle refueling method. In the invention, the gravity and the kinetic energy of the oil are reasonably utilized, so that only one metering pumping mechanism is utilized for refueling, the occupied space is reduced, and the oil is mixed twice to ensure uniform mixing.

The invention discloses a glass fiber reinforced plastic copper-rich liquid oil separation tank and a circulation method of aviation kerosene in copper-rich liquid, relates to the technical field of oil separation tanks, is used for oil-water separation of copper-rich liquid in mining wet electrolytic copper production, and solves the problems that an original oil separation tank is insufficient in oil separation capacity, needs manual treatment, is unstable in electrolytic copper quality and causes acid mist pollution. A water inlet and a water outlet are formed in the two ends of the tank body, a plurality of oil separation modules (including oil separation plates and water separation plates with through holes in the bottoms) are arranged in the middle of the tank body, and the front sides of the oil separation plates are connected with oil collection boxes; the bottom of the tank body is provided with a blind ditch, and the inner side wall of the tank body is provided with an opening and an outer oil discharge groove; an air pumping system is additionally arranged; and a cover plate is arranged at the top of the tank body. The oil separation tank realizes multi-stage oil separation and automatic recovery of oil stains, improves the oil separation efficiency, and eliminates manual intervention.

This invention provides a core-shell structured catalyst and method for biomass-to-aviation kerosene production, relating to the technical field of solid waste resource utilization. The core-shell structured catalyst of this invention comprises, from the inside out, an active core, a transition layer, and a functional shell. The active core includes a support and a Ru-Ni alloy supported on the support. The transition layer includes a nitrogen-doped carbon layer. The functional shell includes a composite molecular sieve formed from W2C and ZSM-5. This invention solves the technical problems of traditional catalysts, such as single function, low hydrodeoxygenation efficiency, low product selectivity, insufficient stability, and harsh reaction conditions. Compared with traditional biomass hydrocracking catalysts (single-metal catalysts), it improves biomass conversion rate and aviation kerosene fraction selectivity, extends catalyst life, and reduces production costs, meeting environmental protection and resource utilization requirements.

The invention discloses an intelligent sampling system for measuring micro-water content of aviation kerosene. The system comprises an automatic sampler, a data line and an intelligent control terminal, the intelligent control terminal comprises a box body, a touch display screen, a controller and a power supply; the automatic sampler comprises a housing, a motor, a bracket, a limiting seat, a piston, a sealing ring and a needle cylinder. The method has the advantages that automatic extraction of aviation kerosene samples, rapid detection of micro-water content, visual display of detection results and data storage can be achieved, and the method is easy and convenient to operate, rapid in detection, accurate in result, convenient and rapid in data management, good in sealing performance, high in cost effectiveness and the like; the problems of oil leakage, unsmooth extraction, low precision and the like in the prior art are effectively solved.

The invention discloses a dual-mode low-emission combustion chamber matched with a standing vortex evaporation tube and a method. The combustion chamber comprises a multi-channel diffuser, an inner casing, an outer casing, a flame tube and a high-energy ignition electric nozzle. The flame tube comprises an outer ring wall plate, an inner ring wall plate, a single-concave-cavity structure, a cap cover, a cross flame supporting plate and M * N evaporation pipes. The trapped vortex combustion chamber is combined with two low-emission advanced combustion organization technologies of RQL and LPP, different combustion modes are adopted in different states or different areas in the whole flight cycle so as to adapt to the oil-gas ratios in different states, and the pollutant emission in the whole working condition range is reduced. And meanwhile, the M * N evaporation pipes can also be used for solving the problem that multiphase fuel oil is difficult to supply normally under the aviation kerosene phase state change caused by fuel oil regenerative cooling.