57results about How to "Boost rate" patented technology

The invention discloses a multi-stage temperature accurate control method based on a neural network algorithm, relates to the field of oven temperature control, and particularly comprises the steps of setting a final target temperature # imgabs0 #, and dividing a heating process of heating to the final target temperature # imgabs1 # into a rapid temperature rise stage, a temperature rise control stage and an accurate temperature control stage, an intermediate target temperature # imgabs2 # is set in each stage so as to gradually approach the final target temperature # imgabs3 #; according to the established oven system model, the influence of different intermediate target temperatures # imgabs4 # on temperature response is analyzed, and a proper intermediate target temperature # imgabs5 # combination is found; the heating temperature # imgabs6 # of the heating wire and the temperature # imgabs7 # in the oven are detected in real time through a temperature sensor, and then segmented control is conducted; through segmented control, the temperature rise rate and control precision of each stage are optimized, overshoot is reduced, the response speed is increased, the target temperature is gradually approached, and temperature overshoot caused by one-time large-amplitude temperature rise is avoided.

The invention discloses a self-adaptive control method for underground coal mine hole sealing and grouting, and belongs to the technical field of well hole packing. The method comprises the steps that plugging bags are sequentially installed at the cross sections of two drill holes of an underground coal mine working face, compressed air is injected into the plugging bags, and a cylindrical space between the bags is filled with multi-stage coal powder distribution materials in a layered mode and compacted; mixing ordinary Portland cement, a composite expanding agent, a carboxyl water reducer, a hydroxypropyl methyl cellulose stabilizer and water according to a preset ratio, and screening; stepwise pressure injection is implemented, and the grouting pressure and rate are regulated and controlled in a variable-rate climbing mode, a constant-pressure variable-speed mode and a proportional attenuation mode; and constant-temperature and constant-humidity maintenance is conducted on the grouting completion area, so that the desorption value of the drilling cuttings is reduced to a target value. According to the scheme, the grouting process parameters can be optimized, and the grouting quality is improved.

The invention relates to an unmanned aerial vehicle covert communication resource optimization method based on intelligent reflecting surface assistance, which constructs a covert communication scene in which an intelligent reflecting surface and an unmanned aerial vehicle cooperate, and establishes an unmanned aerial vehicle covert communication model for maximizing the maximum average rate of a legal user on the premise of meeting the minimum detection probability of an eavesdropper. Initializing configuration information of a legal user, an eavesdropper, a jammer and an unmanned aerial vehicle; an eavesdropper detection probability model is constructed; initializing and calculating the trajectory of the unmanned aerial vehicle and the initial phase of the intelligent reflecting surface; the phase shift of the reflecting element of the reconfigurable intelligent reflecting surface and the track of the unmanned aerial vehicle are optimized; if the target function converges, the maximum average rate, the optimal phase shift and the optimal unmanned aerial vehicle trajectory of the user are obtained, and otherwise, one is added to the number of iterations, and all the variables continue to be optimized. According to the method, the maneuverability of the unmanned aerial vehicle and the mobility of the reconfigurable intelligent reflecting surface are fully considered, and the jammer is arranged to influence detection of legal signals by an eavesdropper so as to improve the average information rate of a user.

The invention discloses a dental pulp stem cell-derived exosome photocuring hydrogel and a preparation method and application thereof in treating severe periodontitis, and the dental pulp stem cell-derived exosome photocuring hydrogel has better biocompatibility and capability of promoting periodontal tissue regeneration by utilizing the dental pulp stem cell-derived exosome; the sustained-release effect of the hydrogel is beneficial to continuously providing treatment components and reducing the treatment times; through local administration, systemic side effects are reduced, and the safety and effectiveness of treatment are improved.

The invention relates to a geopolymer grouting material and a preparation method thereof, and relates to the technical field of grouting materials, the geopolymer grouting material comprises the following raw materials by weight: 20-30 parts of red mud, 7-15 parts of fly ash and 50-65 parts of an alkali activator; the alkali activator is composed of a silica fume-based solution and a modified water glass solution in a weight ratio of (15-19): (7-11). On one hand, the red mud is activated and modified by adopting an oxygen-enriched microwave plasma process, and meanwhile, the alkali activator composed of the silica fume-based solution and the modified water glass solution in a specific proportion is matched, so that the properties such as the condensation rate and the mechanical strength of the red mud-fly ash geopolymer are remarkably improved; the use requirement of rapid hardening of the grouting material is met, and the defects of the existing red mud-fly ash geopolymer grouting material are overcome.

The invention provides a carbon-manganese-based composite material as well as a preparation method and application thereof. The carbon-manganese-based composite material is a MnO2-BC composite material formed by MnO2 and biochar, and MnO2 nanoparticles are loaded on the surface of the biochar; by adding 60mg of MnO2-BC / g.VS into a WAS anaerobic fermentation system, the anaerobic fermentation performance of the WAS can be greatly improved, and the degradation rates of polysaccharide, protein and SCOD (soluble chemical oxygen demand) are improved; the method can promote the directional enrichment of Desulfovibrio and Geobacter from the angles of energy metabolism regulation and electron directional transduction optimization, stably and efficiently solves the bottleneck problems of easy acid accumulation, poor flora synergistic effect, easy environmental stress in methane production and the like in the traditional WAS anaerobic fermentation, and has excellent application potential.

The invention discloses a catalyst as well as a preparation method and application thereof, and belongs to the technical field of catalysis. The preparation method of the catalyst comprises the following steps: mixing and stirring melamine, a metal salt and a solvent under a carbon dioxide-containing atmosphere condition for prepolymerization to obtain a suspension A, reacting the suspension A at a certain temperature to obtain a solid product, washing and drying the obtained solid product to obtain a mixture B, and calcining and annealing the mixture B to obtain the catalyst. The catalyst is obtained. The catalyst has the advantages of high catalytic activity, high PO selectivity, high generation rate and the like in a reaction for preparing epoxypropane by catalyzing a propylene gas phase direct epoxidation reaction.

The present invention discloses an independent multi-point quartz lamp thermal assessment device based on focused heating, which can perform remote, continuous, non-contact and controllable heating on the heating surface or point of the sample under test, which not only overcomes the shortcomings of traditional gas thermal shock test devices, such as high cost, large noise pollution, difficult control of temperature distribution and rising and falling rates, low safety, and inability of isothermal thermal cycle test devices to achieve gradient thermal shock, but also overcomes the shortcomings of traditional quartz lamp heating devices, such as low efficiency, low temperature rise, low upper temperature limit, short continuous heating time, and poor adaptability. At the same time, gradient or isothermal thermal shock in a wide range can be achieved by adjusting the heating power, heating distance, and modular splicing number of the quartz lamp. Therefore, the present invention realizes an economical, safe, clean, quiet, flexible and efficient gradient thermal shock test device.

The invention relates to the field of equipment detection, in particular to an automatic charging and discharging and parameter monitoring system and method for a direct-current storage battery. The system comprises a storage battery unit group which comprises at least one single storage battery and is used for providing a direct-current power supply; the standby storage battery unit is connected with the storage battery unit group in parallel; the monitoring modules are mounted at the positive and negative ends of each single storage battery; the intelligent control switch is matched with the monitoring module, receives an instruction of the central control system, and is used for controlling the switching operation of putting in and quitting the single storage battery; the charging and discharging control module is matched with the intelligent control switch and is used for carrying out automatic charging and discharging operation on the withdrawn single storage battery; and the central control system is used for receiving the monitoring data, controlling the intelligent switch and the charging and discharging control module, and sending an operation instruction. According to the invention, automatic charging and discharging operation of the single storage battery is realized, the efficiency of maintenance work is obviously improved, manual intervention is reduced, and the maintenance cost is reduced.

The invention relates to a cement-based material with a photocatalytic function, a coating, a casting body and a preparation method, the cement-based material with the photocatalytic function comprises cement-based dry powder, and the cement-based dry powder comprises, by weight, 1-1.5 parts of molybdenum disulfide nanoflowers and 9-19 parts of Portland cement. The preparation method has the beneficial effects that the molybdenum disulfide nanoflower is directly introduced into a cement-based material as a photocatalyst, so that the self-cleaning function and the dye degradation function of the material are increased, the hydration rate and the mechanical property of the cement are improved, and the cement is a green and sustainable building material. The preparation method of the cement-based material with the photocatalytic function is simple and efficient.

The invention discloses a core-shell-satellite SERS (Surface Enhanced Raman Scattering) composite substrate with a copper-doped MOF (Metal Organic Framework) shell layer and a preparation method of the core-shell-satellite SERS composite substrate. According to the composite substrate, gold and silver nanoparticles are used as a core, a copper ion-doped MOF material is used as a shell, and gold nanospheres grown on the surface of the copper ion-doped MOF material are used as satellites; wherein the gold and silver nanoparticles comprise gold nanoparticles and silver layers wrapping the gold nanoparticles; the MOF material doped with the copper ions is a ZIF-8 material doped with the copper ions. The preparation method disclosed by the invention is low in energy consumption, simple to operate and high in efficiency, the synthesized nanostructure has the advantages of uniform structure and size, economy, effectiveness and good stability, the comprehensive performance of chemical enhancement and electromagnetic enhancement is good, and more accurate and sensitive detection results can be provided for subsequent SERS (Surface Enhanced Raman Scattering) detection.

The invention provides an air pressure fluctuation balancing and pressure stabilizing method and system in a buffer tank. Wherein the pressure sensor array is used for monitoring the air pressure in the buffer tank in real time, preprocessing collected data, removing noise and enhancing the signal definition, and an air pressure adjustment starting signal is generated when air pressure fluctuation exceeds a threshold value; according to the air pressure regulation starting signal, optimizing a gas supplementing or discharging rate by using an adaptive neural fuzzy inference system and a nonlinear control algorithm of particle swarm optimization, and generating a preliminary air pressure regulation strategy; on the basis of the initial air pressure adjusting strategy, a multi-target genetic algorithm is adopted to automatically adjust the air supplementing or discharging rate, and a final air pressure adjusting scheme is generated; and based on the final air pressure regulation scheme, analyzing data of a pressure sensor in the buffer tank, and continuously optimizing an air pressure regulation strategy. According to the technical scheme provided by the invention, the air pressure can be accurately adjusted.

The invention provides an application of flufenamic acid in preparation of a medicine for treating peripheral nerve adhesion diseases, relates to the technical field of biomedicine, and adopts the technical scheme that the application of the flufenamic acid (2-(3-trifluoromethylaniline) benzoic acid) in preparation of the medicine for treating the peripheral nerve adhesion diseases is provided. The peripheral nerve adhesion diseases comprise sciatic nerve adhesion. The invention provides an application of flufenamic acid in preparation of drugs for treating peripheral nerve adhesion diseases, and a specific verification experiment proves that 2-(3-trifluoromethylanilino) benzoic acid (flufenamic acid, FFA, CAS: 530-78-9) can effectively promote the movement balance ability and nerve conduction rate of mice, promote the recovery of adhered nerves, and can be used for preparing drugs for treating peripheral nerve adhesion diseases. The positive treatment effect on peripheral nerve adhesion diseases is achieved.

The application discloses a sludge resource utilization method and application thereof. The sludge resource utilization method comprises the following steps: performing electro-fermentation treatment on sludge to be fermented in an anode chamber of an electrolytic cell; and the anode electrode in the anode chamber comprises a carbon-based material modified by titanium oxide. The anode electrode of the electrolytic cell comprises the carbon-based material modified by titanium oxide, the hydrophilicity of the surface of activated carbon particles can be significantly improved by modifying the carbon material by titanium oxide, the biocompatibility and electrocatalytic activity of the material are improved, the growth of microorganisms is facilitated, the anaerobic fermentation speed of bacteria can be improved, the electro-fermentation process speed and treatment effect are optimized and improved, and the effective recovery of elements such as nitrogen, iron and phosphorus contained in the sludge is realized, so that the application prospect is good.

The invention provides a 1030 nm waveband 9-shaped cavity fiber laser and a design method thereof. According to the design method, the total cavity length is determined through dispersion matching, the length ratio of a gain fiber to a passive fiber is adjusted under the condition that the total cavity length is fixed, the splitting ratio and the phase shift amount are optimized in combination with the nonlinear interference principle, stable self-starting mode locking is achieved, and the problems that a traditional 9-shaped cavity laser is difficult in mode locking starting and poor in stability are solved. The ultra-short pulse laser has the advantages of high cavity length error-tolerant rate and high mode locking speed, can stably output ultra-short pulses of the 1030 nm wave band, and has good application prospects in the fields of industrial processing, laser radar and the like.

The invention discloses a P-region element reinforced double-monatomic catalyst as well as a preparation method and application thereof, belongs to the field of catalysts, and solves the problem of poor selectivity of production of hydrogen peroxide by electrocatalytic two-electron oxygen reduction of a traditional monatomic catalyst based on transition metal. According to the invention, cobalt and gallium elements are introduced into a zeolite imidazate precursor through an ion exchange method, the coordination environment of the catalyst is regulated through introduction of sulfur species, and finally, the P-region element reinforced double-monatomic catalyst is synthesized through high-temperature annealing. The invention also discloses an application of the catalyst in electrocatalytic two-electron oxygen reduction. The catalyst disclosed by the invention is used for producing hydrogen peroxide by electrocatalytic two-electron oxygen reduction, has the advantages of high hydrogen peroxide selectivity and high hydrogen peroxide production rate, and has profound significance for expanding the application scene of a P-region element catalyst in the field of electrocatalysis.

The invention provides copper tailing autoclaved aerated concrete and a preparation method thereof, and relates to the field of concrete preparation. The concrete is prepared from copper tailings, an alkali activator, gypsum, quicklime, cement, a rosin thermal polymer air entraining agent, a polycarboxylate superplasticizer, a nano material and a seed crystal. The copper tailings are used as a siliceous raw material, the solid waste utilization rate is greatly increased, the rosin thermopolymer air entraining agent and the polycarboxylate superplasticizer are combined, the gas forming rate and the thickening rate of slurry are optimized, the uniformity of a pore structure is improved, meanwhile, the nano material and the seed crystal are added, the silicon-calcium hydrothermal synthesis reaction of the test block is further promoted, and the comprehensive performance of the test block is improved. The strength of the pore wall is enhanced, so that the pore structure is more stable, and the thermal insulation property and compressive strength of the copper tailing autoclaved aerated concrete block are improved.

This application discloses a control method, medium, and solid-state hydrogen storage fuel cell, belonging to the field of fuel cell technology. The control method acquires the actual temperature, pressure, and flow data of the solid-state hydrogen storage module and preprocesses the data; it employs a multi-parameter collaborative control algorithm to dynamically optimize the target temperature and pressure of the solid-state hydrogen storage module at the current moment; based on the optimized target temperature at the current moment, it uses an adaptive heating strategy to manage the regional temperature of the solid-state hydrogen storage module; based on the stable hydrogen release of the solid-state hydrogen storage module at each stage, it uses the optimized target pressure at the current moment and adjusts the valve opening of the solid-state hydrogen storage module according to PID control; and it controls the hydrogen release rate of the solid-state hydrogen storage module. This method achieves rapid and accurate temperature control and uniform temperature distribution of the solid-state hydrogen storage module, ensuring the stability of hydrogen release and greatly improving the performance and reliability of the fuel cell system.

This application provides a method and system for integrated protection of wireless network optimization and data security. The method includes: collecting wireless network operation index data and network security threat index data; evaluating network quality based on the wireless network operation index data, calculating network channel quality values, and generating network optimization strategies; calculating security threat values ​​based on the network security threat index data, and constructing security protection strategies based on the security threat values ​​and network channel quality values; linking and matching the network optimization strategies and security protection strategies to form linkage control commands; and synchronously executing network parameter adjustments and security management actions according to the linkage control commands. This application achieves bidirectional linkage between wireless network quality perception and data security threat detection, optimizing network speed and latency while simultaneously identifying attacks and dynamically adjusting security strategies, achieving synergistic optimization and balance between performance and security.

A method for preparing shell-modified biochar cementitious materials is disclosed. This method aims to address the technical problems of low biochar content, decreased compressive strength at high biochar content, and poor durability in existing traditional biochar cementitious materials. The method comprises: 1. Pretreatment of agricultural and forestry waste and shell waste; 2. Preparation of shell-modified biochar; 3. Mixing 5-30 parts by weight of shell-modified biochar, 55-80 parts by weight of ASTM Type I ordinary Portland cement, and 15 parts by weight of metakaolin, followed by mixing with 40 parts by weight of water to obtain a slurry; then molding and curing to obtain the final product. The compressive strength of this cementitious material is 39-60 MPa, which is 8%-58.5% higher than that of traditional biochar cementitious materials; the water absorption rate is 17%-18.5%, which is 12.5%-15% lower than that of traditional biochar cementitious materials, making it suitable for use in road and building materials.

The present invention provides a double-layer coated sulfide positive electrode composite material and a preparation method thereof. The present invention constructs an in-situ chemically coated sulfide positive electrode material with a core-shell structure, and then grows a layer of sulfide electrolyte on the surface of the outer shell to enhance the interface stability between the sulfide positive electrode and the sulfide electrolyte in an all-solid-state lithium-ion battery. A sulfide FeS2 with excellent theoretical specific capacity is selected, and an FeS2@C structure is formed by an in-situ chemical method; a layer of sulfide electrolyte is chemically coated on the surface to form a double-layer coated FeS2@C@Li6PS5X material. Sulfide provides high specific capacity, and the nano-thick carbon material shell reduces the influence of elastic stress during charging and discharging, improves the conductivity of the composite material, and improves the rate performance and cycle stability of the material. At the same time, in-situ coating of a layer of sulfide electrolyte can improve the point-to-point interface contact problem between the composite nanomaterial and the sulfide electrolyte, and improve the ion transmission channel.

The invention discloses a method for efficient rooting and seedling formation of industrial hemp cutting slips. The viscous colloidal rooting agent is prepared from xanthan gum, boric acid, potassium permanganate, salicylic acid, naphthylacetic acid and indolebutyric acid, and has the advantages of being high in adhesiveness, long in acting time, stable in character, convenient to use and the like. When the rooting agent disclosed by the invention is applied to cutting slips of industrial cannabis sativa, the trimmed cutting slips of industrial cannabis sativa only need to be dipped in the sticky colloidal rooting agent, and the cutting slips are inserted into a prepared seedling culture substrate after standing for 30 minutes in a shady, cool and ventilated place. In the rooting process, humidity is increased and nutrition is supplemented through the ultrasonic humidifier with the timing function, and the problem that air humidification management is difficult in the cutting slip rooting and seedling forming process is solved. By means of the method, the industrial hemp cutting slips can root and grow seedlings within 13-16 days, and the seedling rate reaches 90% or above. The rooting rate of the industrial hemp cutting slips is greatly improved, and the method is an efficient cutting seedling raising scheme which is high in seedling rate, short in period and low in management cost.

The application discloses an optical element repairing device and a repairing method thereof, and relates to the optical technology field.The optical element repairing device comprises a pumping light source, an online monitoring mechanism and a repairing mechanism.The pumping light source is used for emitting pumping light towards a surface defect of a sample to be repaired.The online monitoring mechanism comprises a detecting light source and a first image processor.The detecting light source is used for emitting detecting light towards the surface defect of the sample to be repaired.The first image processor is used for receiving the detecting light reflected by the surface defect of the sample to be repaired and obtaining image information of the surface defect of the sample to be repaired.The repairing mechanism is used for repairing the surface defect of the sample to be repaired according to the image information of the surface defect of the sample to be repaired.The optical element repairing device can accurately and efficiently repair the damage at a fixed point, thereby improving the problems of low repairing rate and low repairing success rate in the prior art.

A method and a reaction system for converting waste plastics into chemical raw materials belong to the field of petroleum chemical industry, comprising: after being crushed, the waste plastics are mixed with part of the circulating liquid hydrocarbon in the product, extruded into a microwave device through a feeder for pretreatment; entering a moving bed reaction-regeneration device, and contacting with a spherical catalyst with a low silicon aluminum ratio and containing phosphorus ZSM-5 zeolite on a silicon aluminum active carrier with a particle size of 1-5 mm, and performing thermal cracking-catalytic cracking reaction at 400-540 DEG C; the product enters a later process to separate ethylene, propylene, butene, aromatic hydrocarbon production raw materials and liquid hydrocarbon for circulation; the deactivated catalyst enters a regenerator for coking and then is recycled; the application improves the reaction rate and conversion efficiency of the waste plastic conversion process, the stability of material conveying and operation, produces high value-added products while eliminating white pollution, reduces oil and gas resource consumption and realizes carbon emission reduction, and has good economic and environmental benefits.

The present invention belongs to the technical field of building materials, and discloses a graphene oxide reinforced recycled aggregate ultra-high performance concrete and a preparation method thereof. The concrete comprises the following raw materials by mass: 570-650 parts of cement, 150-180 parts of slag, 100-150 parts of metakaolin, 80-120 parts of limestone powder, 300-440 parts of regenerated sand, 50-80 parts of regenerated micro powder, 700-1000 parts of quartz sand, 100-200 parts of quartz powder, 30-60 parts of polycarboxylate water reducer, 180-280 parts of water, and 0.5-0.8 parts of graphene oxide; and also comprises steel fiber, the volume of which is 1.5-2.2% of the total volume of the concrete. The present invention uses regenerated sand to replace natural river sand, adds slag and regenerated micropowder to the limestone calcined clay system as auxiliary cementitious materials, and uses graphene oxide to enhance the recycled aggregate. In combination with intermittent spraying and stirring, the graphene oxide is evenly distributed on the surface of the aggregate, and a significant reinforcement effect is achieved with a lower dosage, thereby obtaining ultra-high performance concrete with excellent performance.

An electric furnace apparatus according to one embodiment of the present invention may comprise: a main body member having an internal space capable of processing a raw material; an electrode member mounted to be inserted into the internal space of the main body member; an input member installed in the main body member so as to be able to input a raw material into an internal space of the main body member; and an image capturing member mounted in the main body member to be able to capture an image of a region around the electrode member in the internal space of the main body member; and an input control section that detects a spacing distance (Dm) between the electrode member and a raw material stack formed of raw materials stacked around the electrode member by using a photograph image acquired by the photographing section, and controls the input of the raw material input from the input member to the main body member in accordance with the detected spacing distance (Dm). Accordingly, according to an embodiment of the present invention, a spacing distance between the electrode member and the raw material stack can be detected. In addition, the input of the raw material may be controlled according to the detected spacing distance between the electrode member and the raw material stack. Accordingly, the present invention can prevent the electrode member and the raw material stack from coming into contact with each other.

The invention belongs to the technical field of negative electrode materials, and relates to a preparation method and application of an amorphous metal oxide nanorod negative electrode material. The preparation method of the amorphous metal oxide nanorod negative electrode material comprises the following steps: uniformly mixing an organic ferric salt and an organic manganese salt, adding an organic ligand, stirring until precipitate appears, cleaning the precipitate, performing freeze drying, and then performing heat treatment to obtain the amorphous metal oxide nanorod negative electrode material. By adopting the nanorod structure, more reaction sites can be provided so as to promote the intercalation and deintercalation rates of lithium ions; due to the one-dimensional characteristic of the nanorod, the diffusion path of lithium ions in the material is shortened, and the rapid charging and discharging capacity is enhanced. In addition, the amorphous structure is adopted, so that the mechanical stress of the material can be reduced, and the cycling stability is improved; the electronic conductivity is superior to the performance of the same crystal state, and the overall conductivity of the battery can be effectively improved.

Embodiments of the present disclosure provide a solution for visual data processing. A method for visual data processing is presented. The method includes determining, for a conversion between at least one bitstream of visual data and the visual data, a residual representation of the visual data based at least on a gain parameter and a first probability distribution parameter of the visual data, the residual representation representing a residual value compared to a second probability distribution representation of the visual data, the gain parameter adjusts the value range represented by the residual error; and performing a conversion based on the residual representation.

The present invention belongs to the technical field of heat-not-burn cigarettes, and particularly relates to a non-combustion type cigarette manufactured based on flocking technology. The cigarette comprises: a cigarette paper layer, which is a hollow cylindrical structure, an adhesive layer is provided on the inner wall of the cigarette paper layer, and tobacco filler particles, tobacco filler filaments or tobacco filler fibers are fixedly bonded to the adhesive layer. When the cigarette contains tobacco filler particles: the tobacco filler particles will not fall from the cigarette due to the adhesive fastening the particles to the inner wall of the cigarette paper, thereby eliminating the complicated process of using a blocking device at the open end of the cigarette. When the cigarette contains tobacco filler filaments or fibers: the tobacco filler filaments or fibers are arranged radially along the circumference of the cigarette to form countless channels in the radial direction of the cigarette in the same direction as the heat propagation direction. These channels are short and straight, which greatly reduces the thermal resistance of heat propagation in the radial direction of the cigarette, and improves the defects of existing cigarettes such as large thermal resistance, slow heat transfer rate and uneven heating.

The invention relates to the field of aviation fuel synthesis, and discloses a method for preparing high-density aviation fuel through pyrolysis oil hydrogenation, which comprises the following steps: preparing a supported molecular sieve catalyst; the cracking oil is subjected to solvent extraction, distillation, aromatic hydrocarbon extraction and mild hydrogenation pretreatment to separate a refined cracking oil component; and performing catalytic hydrogenation conversion reaction on the refined pyrolysis oil component to prepare the high-density aviation fuel. The high-dispersion supported molecular sieve catalyst is prepared through molecular sieve ion exchange, alkali modification and optimized hydrolysis load, and is used for hydrogenation reaction of pyrolysis oil components under the solvent-free condition, the aromatic hydrocarbon conversion rate is high, and the produced naphthenic mixture has the characteristics of high density and low freezing point; the fuel can be directly used as advanced aviation fuel or a traditional aviation fuel additive to improve the volume calorific value of the fuel; the preparation method disclosed by the invention is mild in reaction condition, simple in implementation route, high in yield of the high-density polycyclic hydrocarbon compound and wide in industrial prospect.