601 results about "Pressure reactor" patented technology

The present disclosure relates to the field of CO2 geological sequestration, and provides a whole-process multi-parameter monitoring device and method for simulating CO2 geological sequestration and use thereof. A large-scale reactor body is developed, and a geological reservoir at a depth of 800 to 3000 meters is simulated. A modular built-in model device is researched and developed, a multi-type and variable-structure reservoir remodeling technology is developed, and mutual coupling of modules can be achieved. The design idea of separating the pressure reactor from the built-in sample model is adopted in the device. The confining pressure, the pore pressure, the temperature gradient, and the axial load of the device can be independently controlled through a temperature control mechanism and a loading mechanism respectively, so that the restoration of the state of in-situ stresses in the reservoir is realized.

A high-pressure reactor, comprising: a reactor (1), one end of which is a feeding end (101) and the other end thereof is a discharging end (102), wherein a plurality of partition plates (2) are provided in the reactor (1) sequentially in a material flow direction, the plurality of partition plates (2) divide a cavity of the reactor (1) into a plurality of compartments (103), a stirring device (3) is arranged in each compartment (103), upper portions of any two adjacent compartments (103) are in communication with each other, and an ore pulp inlet (4), a steam inlet (5) and an acid inlet (6) are sequentially circumferentially provided on a compartment (103) into which materials are fed in a stirring rotation direction about the stirring device (3), which is taken as an axis. After ore pulp enters the reactor, under the action of stirring of the stirring device (3), the ore pulp entering the reactor comes into contact with steam first, continues to be heated, then comes into contact with an acid to react with the acid in the form of an exothermic reaction, and heat generated by the reaction moves to the ore pulp entering a first ore pulp port (41) in a fluid direction, so as to heat newly fed ore pulp.

The invention discloses a purification method for removing quartz inclusion, which comprises the following steps: calcining a quartz sand raw material at high temperature for a certain time, then taking out and quickly putting into cold water for cold quenching; dehydrating quartz sand, feeding into a microwave reactor, heating to a set temperature, and keeping for a period of time; after the reaction is finished, cleaning the quartz sand with ultrapure water; filling the quartz sand into a high-temperature and high-pressure reactor, introducing supercritical carbon dioxide and hydrogen fluoride mixed gas, and keeping the temperature and the pressure for a period of time; and after the reaction is finished, discharging gas to obtain the high-purity quartz. Through two-stage heat treatment, a channel between gas-liquid inclusions in quartz particles and the outside can be efficiently opened, and meanwhile, the supercritical method ensures that impurities in the inclusions can be effectively dissolved out; the treatment time is short, the required temperature is low, the acid consumption is less than 10%, and the method has the advantages of high efficiency and low cost.

The invention discloses a CO2-oil near-miscible phase pressure acquisition system and method based on convective mixing, and belongs to the field of CO2 oil displacement. The system comprises a high-temperature and high-pressure reaction kettle, a temperature and pressure control system, a gas injection module, a liquid injection module and a monitoring control module. According to the method, the oil phase and the carbon dioxide are induced to form a convective mixing effect by dynamically regulating and controlling the injection flow rate, and when no interface of the system reaches a mutual convective mass transfer state, the system pressure corresponding to a phase interface disappearance critical point is directly recorded as a near-miscible-phase pressure value. The near-miscible pressure value obtained by the method is high in accuracy, the single test time is shortened to 1 hour, the test period is remarkably shortened, near-miscible pressure parameters under different temperature conditions can be measured in a short time, the CO2-oil near-miscible pressure can be measured by simulating a high-temperature and high-pressure environment of a stratum, and the method is suitable for popularization and application. And high-timeliness key phase state data support is provided for unconventional oil and gas reservoir development.

The invention relates to a method for synthesizing a high-value product by using refinery furnace gas, which comprises the following steps: purifying refinery crude furnace gas, feeding the purified refinery crude furnace gas into a chemical looping three-stage normal-pressure reactor, respectively obtaining near-pure carbon dioxide, nitrogen and hydrogen products in each stage of flow, and adjusting a gas framework by using the near-pure hydrogen product obtained by reforming coke oven gas as a supplementary hydrogen source, after reaching the standard of the mixed raw material, pressurizing and feeding into a synthesizer, and carrying out gas-liquid separation to obtain a methanol or ammonia product. The method solves the problem that carbon dioxide and nitrogen cannot be utilized when the traditional refinery furnace gas replaces coal-based carbon monoxide to synthesize high-value products through chemical carbonylation; part of coke oven process tail end product coke oven gas is consumed, and the defect that a cheap hydrogen source needs to be supplemented due to unmatched raw material structures in the technological process is overcome; and the tail gas and low-grade heat recycling process in each stage of production process is also optimized, and near-zero emission in the life cycle and gradient utilization of chemical energy are realized.

The invention provides a nano shell powder foam stabilizer and a preparation method thereof. The preparation method comprises the following steps: S1, soaking shells in an HCl solution for 24 hours, taking out the shells, cleaning the shells with distilled water until the shells are neutral, and drying the shells to obtain pretreated shells; s2, crushing the pretreated shells, and sieving with a 150-mesh sieve to obtain coarse shell powder; s3, placing the coarse shell powder in a tubular furnace, introducing nitrogen, isolating oxygen, heating to 900-1000 DEG C, and calcining for 3-4 hours to obtain calcined shell powder; s4, carrying out ball milling on the calcined shell powder for 6-8 hours to obtain nano shell powder; and S5, filling the nano shell powder, a surfactant and deionized water into a lining of a high-pressure reaction kettle, putting the high-pressure reaction kettle into a drying oven, heating to 120 DEG C, preserving heat for 24 hours, taking out the lining after the high-pressure reaction kettle is cooled to room temperature, pouring out the mixed solution from the lining, carrying out suction filtration on the mixed solution, and drying to obtain the nano shell powder foam stabilizer. The prepared nano shell powder foam stabilizer has good foam stabilizing performance, high-value development and utilization of shell powder resources are achieved, and environmental protection is facilitated.

The invention relates to a textured KCu7S4 thermoelectric material and a preparation method thereof, and the method comprises the steps: sequentially adding a prepared KOH aqueous solution, CuCl2. 2H2O and Na2S. 9H2O into a high-pressure kettle, and fully stirring for dissolving; dropwise adding an N2H4.H2O aqueous solution into the mixed solution, fully stirring, sealing, transferring to a microwave chemical synthesis instrument, heating, keeping stirring, and reacting at a target temperature and self-generated pressure to generate a KCu7S4 nanowire preferentially growing along a [001] crystal orientation; and after the reaction is finished and natural cooling is carried out, a product is collected through centrifugation, full cleaning and vacuum drying are carried out, and then the KCu7S4 thermoelectric material with [001] preferred orientation in the direction perpendicular to the pressure direction is obtained through spark plasma sintering. According to the method, a surfactant and an organic solvent are not used, and macro, rapid, efficient and controllable preparation of the KCu7S4 nanowire is realized through a low-temperature, low-cost and low-energy-consumption microwave-assisted hydrothermal process.

Provided are a preparation method and use of a novel copper-metal organic framework (Cu-MOF)-derived magnetic Fe3O4@Cu / C composite for antibiotic degradation. The preparation method of the composite includes: compounding a novel Cu-MOF material obtained in a high-pressure reactor with Fe2O3, and then conducting calcination under an inert gas atmosphere to obtain the magnetic Fe3O4@Cu / C composite.

The utility model provides a butyraldehyde-butanol mixture preparation system, which comprises a high-pressure reactor, a high-pressure reactor, a high-pressure reactor and a high-pressure reactor, wherein a partition plate is arranged in the middle of the high-pressure reactor; a first reaction zone is arranged above the partition plate, a second reaction zone is arranged below the partition plate, and catalyst inlets are formed in the side walls of the first reaction zone and the second reaction zone; a propylene inlet and a carbon monoxide inlet are formed in the side wall of the first reaction zone; a first bubble crushing unit is arranged in the first reaction area; a mixed gas inlet is formed in the side wall of the second reaction area; and a second bubble crushing unit is arranged in the second reaction area. The system disclosed by the utility model is simple in overall structure, and butyraldehyde-butanol is prepared by arranging the two reaction areas, so that the reaction efficiency is improved; meanwhile, the bubble crushing unit is arranged in the high-pressure reactor, so that the phase boundary mass transfer area of gas and liquid phases can be increased, the gas utilization rate and the reaction efficiency are improved, the energy consumption and the raw material loss are reduced, and the operation process is simplified.

The invention relates to the technical field of fractionation of lignocellulose biomass, and discloses a method for fractionating lignocellulose biomass by using a eutectic solvent, which comprises the following steps: mixing betaine and malic acid, stirring, and cooling to room temperature after the reaction is finished to obtain a clear and transparent eutectic solvent; the method comprises the following steps: mixing crushed lignocellulose biomass with a deep-eutectic solvent, and putting the mixture into a high-pressure reaction kettle; acetone and n-butyl alcohol are mixed according to the volume ratio of 3: 2-4: 1, and an anti-solvent is prepared; the method comprises the following steps: slowly adding an anti-solvent into a mixture of the lignocellulose biomass and the eutectic solvent, carrying out ultrasonic treatment, and then carrying out suction filtration. The glass electrode pH meter is used for measuring the pH value of the recovered deep-eutectic solvent, and the newly prepared deep-eutectic solvent is added according to the pH value, so that the stability of the solvent performance can be effectively maintained, the deep-eutectic solvent always keeps a good fractionation effect in multiple times of recycling, the utilization rate of the solvent is greatly improved, and the production cost is reduced.

The invention relates to the field of catalysts, and particularly provides a binuclear Ru-based ammonia cracking hydrogen production catalyst as well as a preparation method and application thereof. The preparation method of the binuclear Ru-based ammonia cracking hydrogen production catalyst comprises the following steps: S1, uniformly mixing a Ru metal precursor, a solvent and a ligand to obtain a first solution; s2, adding a carrier into the first solution, and uniformly mixing to obtain a second solution; s3, transferring the second solution into a high-pressure reaction kettle, and reacting for 6-24 hours at the temperature of 80-180 DEG C under the pressure of 0.05-0.2 MPa to obtain a third solution; s4, cooling the third solution, adding an alkali metal additive, stirring at room temperature for 6-12 hours, and then drying to obtain a sample; and S5, the sample is reduced for 1.5-2 h at the temperature of 500-550 DEG C in the ammonia gas atmosphere, and the binuclear Ru-based ammonia cracking hydrogen production catalyst is obtained. The catalyst prepared in the invention has a high ammonia conversion rate at a low temperature.

The invention discloses a high-pressure reaction kettle emergency discharge pre-arranged planning method, which comprises the following steps of: constructing a real-time monitoring network through a multi-physical quantity sensor, automatically generating a micro scene highly coupled with field disturbance by combining intelligent signal filtering, abnormal factor aggregation and parametric modeling, and realizing agile mapping of a historical optimal discharge strategy and adaptive parameter adjustment and optimization. The risk tolerance and the response rate are accurately evaluated by means of parallel simulation deduction; an actual discharge action is compared with simulation feedback, and if a significant deviation exists, a rapid reconstruction strategy is iterated to realize closed-loop safety management and control; according to the method, the accuracy, the self-adaptability and the safety of the release decision are improved, and the emergency prevention and control efficiency of the reaction kettle under the extreme working condition is improved.

The invention provides an ethylene maleic anhydride copolymer and a preparation and application method thereof, and the preparation method comprises the following steps: dissolving a maleic anhydride monomer in an organic solvent to form a uniformly dispersed solution system, and transferring the solution system into a high-pressure reactor; ethylene gas in a supercritical state is introduced into the solution system of the high-pressure reactor to form a uniform ethylene-maleic anhydride solution system, wherein the pressure of the ethylene gas in the supercritical state is 5-30 Mpa; adding a free radical initiator into the ethylene-maleic anhydride solution system, raising the reaction temperature, and carrying out solution polymerization reaction to obtain a reaction system; a precipitant is added into a reaction system to separate out the ethylene-maleic anhydride copolymer, ethylene and maleic anhydride in the ethylene-maleic anhydride copolymer alternately exist in the form that the molar ratio of ethylene to maleic anhydride is 1: 1, high-performance bonding composite resin can also be formed by blending the ethylene-maleic anhydride copolymer and polyethylene, and the high-performance bonding composite resin is suitable for the fields of adhesives, coatings, composite materials and the like.

The invention relates to the technical field of electrolyzed water catalytic electrodes, in particular to a bifunctional electrolyzed water catalytic electrode with carbonized wood as a substrate and a preparation method and application thereof.The preparation method comprises the steps that 1, wood chips are cleaned and then placed in a tubular furnace to be carbonized at the high temperature in the argon atmosphere, and three-dimensional porous carbonized wood is obtained; 2) dispersing a nickel source, an iron source and a molybdenum source in a solvent, magnetically stirring to obtain a mixed solution, and adding sodium citrate dehydrate to adjust the pH value of the solution to 7; (3) transferring the carbonized wood and the mixed solution into a high-pressure reaction kettle, and carrying out hydrothermal reaction at 160 DEG C; and 4) placing the obtained sample in a tubular furnace for gas phase phosphorization, then repeatedly washing with deionized water and absolute ethyl alcohol, and carrying out vacuum drying to obtain the three-dimensional porous self-supporting framework uniformly and firmly loaded nickel iron molybdenum phosphide difunctional water electrolysis catalytic electrode, the combination of the framework and particles enables the catalytic electrode to have excellent HER and OER electro-catalytic performance and stability, and the catalytic electrode has good application prospects. And the preparation method is simple, efficient, low in cost and suitable for large-scale production and application.

The invention relates to a surface-modified polyanion positive electrode material and a preparation method thereof, and the preparation method comprises the following steps: (1) preparing a precursor aqueous solution containing a lithium source, a metal source, a phosphorus source and a fluorine source NH4F, and uniformly stirring and mixing; metal in the metal salt solution is selected from one or two of iron and manganese; (2) adding double complexing agents of citric acid and ethylenediamine tetraacetic acid into the solution in the step (1); (3) transferring the solution obtained in the step (2) into a high-pressure reaction kettle, and carrying out segmented hydrothermal reaction: nucleation is carried out for 2-4 hours at the temperature of 100-140 DEG C, and crystallization is carried out for 8-16 hours at the temperature of 160-200 DEG C; and (4) mixing the product with a graphene oxide solution, carrying out spray drying, and sintering in an inert atmosphere to obtain a target product. Nanocrystallization, uniform doping and morphology regulation of the material are realized through a controllable hydrothermal reaction, and the polyanion positive electrode material with high crystallinity and excellent electrochemical performance is prepared. The method is suitable for lithium ion batteries with high energy density and long cycle life.

The invention belongs to the technical field of oil exploitation, and relates to a drag reducer for fracturing and a preparation method thereof. The preparation method comprises the following steps: adding 1, 5-hexadiene-3, 4-diol and a catalyst into a high-pressure reactor, raising the temperature, introducing ethylene oxide, raising the temperature, carrying out a heat preservation reaction, stopping heating, and cooling to 50 DEG C or below; adjusting the pH value to 2-3 by using phosphoric acid, adding sulfamic acid, heating, preserving heat and reacting, and cooling to below 40 DEG C; the preparation method comprises the following steps: adding deionized water, 2-(trifluoromethyl) acrylic acid and methacryloylethyl sulphobetaine, stirring and dissolving, adjusting the pH value to 7-8, adding an initiator, heating and carrying out a heat preservation reaction to obtain a viscous liquid; and settling, centrifuging, cleaning and drying to obtain the product drag reducer. The drag reducer has the characteristics of high viscosity and high drag reduction rate.

The invention discloses a thermal hydraulic numerical analysis method and equipment for a nitrogen pressure stabilization reactor, and relates to a combined analysis method of a one-dimensional system level thermal hydraulic analysis program and an equipment internal three-dimensional structure level CFD (computational fluid dynamics) program. Phenomena of nitrogen dissolution, migration, precipitation, accumulation and the like in the nitrogen pressure-stabilized reactor and thermal hydraulic effects caused by the phenomena are subjected to whole-process prediction, and the influence of the phenomena on loop flow heat transfer characteristics and key equipment working performance is further analyzed. According to the method, multi-dimensional and multi-scale computational analysis can be realized, on the basis of not consuming a large amount of computing power resources, the dissolution, migration, precipitation and accumulation behaviors of nitrogen in the coolant and the thermal hydraulic effect caused by the dissolution, migration, precipitation and accumulation behaviors are predicted, and check of a nitrogen pressure-stabilized reactor design scheme and formulation of an operation strategy are supported.

The invention belongs to the technical field of oil exploitation, and particularly relates to a foaming agent for nitrogen foam fracturing and a preparation method and application thereof. The preparation method comprises the following steps: adding 2, 4, 6-trimethyl-3, 5-diaminobenzene sulfonic acid, xylene and a catalyst into a high-pressure reactor, fully stirring, purging a pipeline and a reaction kettle with nitrogen for 5-10 minutes, vacuumizing, stirring, heating to 70-80 DEG C, stopping vacuumizing, adding epoxypropane, heating to 170-190 DEG C, reacting for 2-10 hours, and cooling the system to 70-80 DEG C; continuously stirring the mixed solution, introducing ethylene oxide, heating to 180-200 DEG C after the ethylene oxide is completely introduced, continuously reacting, and cooling the system to room temperature; and adjusting the pH value to 8-9 with hydrochloric acid, filtering, and carrying out reduced pressure distillation to obtain a viscous solid, namely the foaming agent product. The foaming agent has the advantages of large foaming volume and long half-life period.

The invention discloses a preparation method of a Zr-MOF nano material, which comprises the following steps: adding deionized water into a reaction mixture consisting of zircon salt, 4 ', 4', 4 ', 4'-(ethylene-1, 1, 2, 2-tetraalkyl) tetra ([1, 1 '-biphenyl]-4-carboxylic acid), an acid regulator and an organic solvent to form a mixed solution, heating and reacting in a high-pressure reaction kettle, and cooling to room temperature to obtain the Zr-MOF nano material. And centrifugally collecting and cleaning a product, and drying in a dark place to obtain the Zr-MOF nano material. According to the application of the Zr-MOF nano material in the water-based zinc-iodine battery, the Zr-MOF nano material and iodine are prepared into a composite material, then the composite material is prepared into electrode slurry, the surface of a stainless steel mesh is coated with the electrode slurry, and the electrode slurry is dried to serve as an electrode plate of the water-based zinc-iodine battery. The preparation process is simple, Zr-MOF nano-materials with different structures can be obtained by adjusting the deionized water content of the system, and the Zr-MOF nano-materials can be applied to an electrode plate of an aqueous zinc-iodine battery to improve the cycle performance of the battery.

The invention provides a PM / CO2 co-capture porous polyion liquid adsorbent and a preparation method thereof, the method comprises the following steps: S1, uniformly dispersing an imidazolyl functional monomer, styrene and an initiator in a reaction solvent to prepare an imidazolyl-containing initiator; s2, mixing the imidazolyl initiator obtained in the step S1 with a cross-linking agent, and placing the mixture in a high-pressure reaction kettle for sol-gel heterogeneous hydrothermal synthesis; and S3, carrying out solvent replacement and freeze drying on the gel obtained in S2 to prepare the monolithic polyion liquid. The prepared porous polyion liquid adsorbent not only has a series of advantages of wide specific surface area, narrow pore size, polar surface charge, PM / CO2 capture capacity and the like, but also has good mechanical stability and environmental tolerance, the preparation process is simple, the condition is mild, and the porous polyion liquid adsorbent is a PM / CO2 co-capture integral adsorbent with wide application prospects.

The invention discloses a preparation method of a vacancy coupled nano tip material for electrochemical seawater uranium extraction, which comprises the following steps: slicing foamed nickel, performing ultrasonic treatment in acetone, ethanol, pure water and a hydrochloric acid solution in sequence, thoroughly washing with pure water, and drying for later use; the preparation method comprises the following steps: dissolving a cobalt source, urea and ammonium fluoride in pure water, transferring the solution into a polytetrafluoroethylene lining, then adding treated foamed nickel, reacting in a high-pressure reactor, taking out a material, washing with pure water, and drying; and then calcining the dried flaky material, and treating with Ar plasma after calcining to obtain the vacancy-coupled nano tip material. The Co3O4 nano tip array rich in oxygen vacancies grows on the surface of the foamed nickel, an enhanced electric field on the nano tip induces OH <-> in a solution outside an electrode surface interface to be enriched, a local alkaline pH protection layer is formed, and attachment and deposition of metal salt on the surface of the electrode are reduced.

The invention provides a preparation method of a hard carbon negative electrode material, which specifically comprises the following steps: uniformly mixing aromatic hydrocarbon-rich heavy oil with a catalyst and a halogenated cross-linking agent, carrying out halogenated cross-linking-polycondensation reaction in a high-temperature and high-pressure reaction kettle to preliminarily obtain halogenated cross-linked asphalt, further pre-oxidizing to obtain thermosetting cross-linked asphalt, and carrying out secondary pre-oxidation on the thermosetting cross-linked asphalt to obtain the hard carbon negative electrode material. And carrying out high-temperature carbonization by taking the thermosetting crosslinked asphalt as a hard carbon precursor to obtain the hard carbon negative electrode material. The catalyst is used for initiating a crosslinking reaction between the halogenated crosslinking agent and the aromatic hydrocarbon-rich heavy oil, the molecular structure of the aromatic hydrocarbon-rich heavy oil is effectively adjusted, a thermosetting precursor is further obtained through pre-oxidation, and the aromatic hydrocarbon-rich heavy oil is inhibited from tending to be structurally ordered in the carbonation process; and a hard carbon material with a disordered carbon microcrystalline structure is formed in the subsequent carbonization process. The prepared hard carbon is used as the negative electrode of the sodium-ion battery, the reversible specific capacity under the current density of 0.1 C reaches 360 mAh / g or above, the specific capacity under the large current density of 5 C reaches 200 mAh / g or above, and the hard carbon has stable cycle performance and good rate capability.

The utility model provides a double coil pipe high-efficiency temperature control high-pressure reaction kettle, which comprises a reaction kettle, the top end of the reaction kettle is provided with a solid feed port, a liquid feed port, a motor port, an inspection port and a condensation port, and the reaction kettle internally comprises an upper coil pipe, a lower coil pipe and a plurality of stirring paddles, the stirring paddles are located at the hollow positions of the upper coil pipe and the lower coil pipe, the upper coil pipe and the lower coil pipe are symmetrically arranged in the reaction kettle up and down, the circumferential diameters of the upper coil pipe and the lower coil pipe are the same from top to bottom, and gaps are formed between the upper coil pipe and the inner wall of the reaction kettle and between the lower coil pipe and the inner wall of the reaction kettle. A gap is formed between the upper coil pipe and the lower coil pipe, so that materials in the reaction kettle form good axial and radial flow, turbulent flow is formed near the coil pipes, and the heating uniformity of the materials is effectively improved.

The utility model provides a system for preparing glyphosate by oxidizing N-(phosphonomethyl) iminodiacetic acid. The system comprises a high-pressure reactor and a built-in strengthening unit, at least two catalyst bed layers are arranged in the high-pressure reactor, each catalyst bed layer is arranged below the liquid level in the high-pressure reactor, and a built-in strengthening unit is arranged between every two adjacent catalyst bed layers; the built-in strengthening unit comprises a first strengthening reactor and a receiving disc arranged under the first strengthening reactor, the receiving disc is of an inverted arc-shaped concave structure with a low center and a high edge, an acceleration area is arranged in the center area of the receiving disc, and the acceleration area is arranged opposite to an outlet of the first strengthening reactor. According to the system disclosed by the utility model, oxygen and a N-(phosphonomethyl) iminodiacetic acid solution are crushed and dispersed into micron-sized bubbles through the enhanced reactor, so that the dissolution rate of oxygen and the oxidation reaction rate are greatly improved, and the conversion rate of raw materials is improved.

The invention discloses a CF / Cu2S (at) MoS2 heterojunction surface-enhanced Raman scattering sensing substrate and a preparation method and application thereof, and relates to the technical field of micro-plastics and nano-plastics, and the preparation method comprises the following steps: cleaning a CF (copper foam) substrate, immersing the cleaned CF substrate in a precursor solution for a reaction, and after the reaction, washing the treated CF substrate to obtain a CF / Cu (OH) 2 composite material; step 2, dissolving Na2S. 9H2O in deionized water, carrying out ultrasonic treatment to obtain a clear solution, then adding the CF / Cu (OH) 2 composite material obtained in the step 1 into the clear solution, transferring into a high-pressure reactor, and washing and drying after the reaction is completed to obtain a CF / Cu2S composite material; and step 3, preparing a mixed solution, immersing the CF / Cu2S composite material obtained in the step 2 into the mixed solution for heat treatment, and after heat treatment, washing and drying to obtain the CF / Cu2S-coated MoS2 composite material. The detection limit of the CF / Cu2S (at) MoS2 heterojunction surface enhanced Raman scattering sensing substrate on PS particles reaches 50 [mu] g / mL, and the substrate shows very strong linear correlation (R2 = 0.98).

The invention provides a preparation method of an environment-friendly two-dimensional high-strength coating and a raw material recycling method, and the preparation method comprises the following steps: preparing trimesic acid, melamine, a solution A and a solution B into a reaction solution according to a proportion in a glove box, and putting the reaction solution into a high-pressure reaction kettle to react to form gel; and mixing the gel with ethanol, carrying out ultrasonic treatment, filtering, washing and drying to obtain faint yellow polymer powder, dissolving the powder in trifluoroacetic acid, and preparing film coatings with different thicknesses by adjusting the concentration of the solution. According to the raw material recovery method of the coating, an acid catalyst is used for hydrolysis, trimesic acid and melamine are recovered, and the recovery rate reaches 88.9% or above. The prepared coating material has the advantages of high strength, low density, excellent leakproofness and chemical corrosion resistance, raw material recycling is realized, the production cost is reduced, the green and environment-friendly requirements are met, and the coating material is suitable for light high-strength materials, protective coatings and other high-performance application fields.

The invention discloses a structural health monitoring method for a high-temperature and ultrahigh-pressure reactor based on an unmanned aerial vehicle platform, the unmanned aerial vehicle platform carries a non-contact thermal imaging module and a contact ultrasonic detection module, and the structural health monitoring method comprises the following steps: receiving and processing data from the non-contact thermal imaging module, identifying a suspected abnormal area on the surface of the reactor; generating a control instruction based on the identified suspected abnormal area, and guiding the unmanned aerial vehicle platform to move the contact type ultrasonic detection module to a corresponding position for contact type detection; and the data processing module is used for receiving and processing data from the contact type ultrasonic detection module so as to verify and evaluate the suspected abnormal area. According to the technical scheme provided by the invention, full-coverage structure health assessment can be carried out on the high-temperature and ultrahigh-pressure reactor through the remote unmanned aerial vehicle platform, and potential internal defects and surface abnormalities can be accurately identified.

The invention discloses ROS-responsive self-adhesive hydrogel and a preparation method and application thereof.The preparation method comprises the following steps that amine monomers, acid monomers, polyether and / or polyester, deionized water and an antioxidant are added into a high-pressure reaction kettle, the temperature is increased under the CO2 and / or inert atmosphere for a pressure maintaining reaction, then the temperature continues to be increased and vacuumized, and the ROS-responsive self-adhesive hydrogel is obtained; continuously reacting under a vacuum condition to obtain a polyamide elastomer; the preparation method comprises the following steps: dissolving a polyamide elastomer and a cross-linking agent I in deionized water, and reacting to obtain polyamide elastomer hydrogel; dissolving N-isopropylacrylamide, acrylic acid, a cross-linking agent II, an initiator, cerium oxide nanoparticles and silver nitrate in deionized water to obtain a prepolymer solution; the polyamide elastomer hydrogel is soaked in the prepolymer solution for polymerization, and the hydrogel is obtained. The hydrogel has a double-network structure, is good in biocompatibility, has temperature response and ROS response functions, and can control drug release and promote wound healing.

The invention relates to a preparation method and application of a hardness removal agent, and the method comprises the following steps: 1) alkali fusion reaction: mixing and fusing bauxite and NaOH to generate soluble sodium aluminate NaAlO2; 2) compounding silicon and aluminum: dissolving aluminum silicate in hot water, adding silica sol, stirring and mixing, and regulating the pH value to 11-12 by using NaOH; an aluminosilicate precursor gel is formed; 3) hydrothermal crystallization: transferring the aluminosilicate precursor gel into a high-pressure reaction kettle, and carrying out hydrothermal reaction to promote polymerization of a silicon-aluminum network; and 4) post-treatment: cooling aluminosilicate, centrifugally washing the aluminosilicate until the aluminosilicate is neutral, drying the aluminosilicate at 110 DEG C, and grinding the aluminosilicate to obtain a white powder product. A silicon-aluminum network structure of the hardness removal agent prepared by the method has regular pore channels, the highest calcium and magnesium removal rate can reach 90% or above, the hardness removal agent is high in anti-interference performance, is kept stable in a pH range of 6-12, is not influenced by common Cl <-> and SO4 < 2-> in water, and is high in stability.

The utility model discloses an energy-saving high-temperature and high-pressure reaction kettle, and particularly relates to the technical field of chemical production equipment, the energy-saving high-temperature and high-pressure reaction kettle comprises an outer barrel, and a feeding component is mounted on one side of the outer barrel; the feeding assembly comprises a sealing cover, a feeding hopper is installed at the bottom of the sealing cover, the bottom of the feeding hopper communicates with a feeding pipe, two first shaft supports are fixedly connected to one side of the inner wall of the feeding pipe, electric push rods are installed in the two first shaft supports correspondingly, and second shaft supports are installed on the outer sides of the bottom ends of the two electric push rods correspondingly. And one side of each of the two second shaft supports is fixedly connected with a sealing baffle. Compared with the prior art, by arranging the feeding assembly, the electric push rod is used for pulling and pushing the sealing baffle, so that materials have an independent sealing space after entering the feeding funnel, the phenomenon that the temperature inside the reaction kettle is not uniform when the cover is opened is effectively avoided, the stability inside the reaction kettle is improved, and the reaction efficiency is improved; and meanwhile, energy consumption can be reduced, energy utilization efficiency is improved, and energy waste is reduced.