407 results about "Solid carbon" patented technology

The invention discloses rapid denitrification composite carbon source particles as well as a preparation method and application thereof. The rapid denitrification composite carbon source particle is prepared from raw materials including a slow-release skeleton, a carbon source and an optional functional modified material. The invention integrates the advantages of two solid carbon sources (natural carbon source and artificially synthesized carbon source), and develops novel composite carbon source particles with excellent performance and high cost effectiveness by designing and regulating the formula, proportion and structure. The prepared rapid denitrification composite carbon source particles can ensure that microorganisms have stable carbon source supply in the whole denitrification process, and the denitrification efficiency reduction caused by discontinuous or non-uniform carbon source supply is avoided. The rapid denitrification composite carbon source particles prepared by the invention also have the characteristics of easy biofilm formation, easy fluidization, stable carbon release, lasting carbon supply, relatively high mechanical strength, low cost, wide application range, difficulty in breaking, long service cycle and large specific surface area, and can be well applied to a biological sewage treatment system as a microbial carrier.

The present invention provides a method for hydrogen-based reduction roasting pretreatment of chromite pellets, belonging to the field of metallurgical technology. The method comprises the following steps: mixing chromite powder, a binder and water to form pellets, obtaining green chromite pellets; mixing H2 and CO to obtain a reducing gas; and carrying out reduction roasting on the green chromite pellets in the reducing gas. The reduction roasting of the present invention is carried out in an H2-CO atmosphere, completely without involving the use of primary energy solid carbon, and enables the chromite pellets to obtain sufficient strength and metal pre-reduction degree before entering the ore thermal furnace, which can greatly reduce the comprehensive energy consumption and emissions in the production of ferrochrome alloy.

The invention relates to a preparation method of coarse-grained chromium carbide powder. The preparation method comprises the following steps: firstly, carrying out preliminary stirring, ball milling, pre-drying, low-temperature drying and medium-temperature pyrolysis on chromium sesquioxide powder, a dispersing agent and glycerol, so that the glycerol is pyrolyzed into solid carbon, and coating the surface of chromium sesquioxide with the solid carbon to form first-stage carbon source coated powder; mixing the powder with graphite powder and glycerol, carrying out pre-drying and low-temperature drying and shaping to obtain a two-stage carbonization column, carrying out gradient heating carbonization under a protective atmosphere to enable chromium sesquioxide and carbon to fully react to generate a chromium carbide phase mainly comprising Cr3C2, and then carrying out post-treatment to obtain the coarse-grained chromium carbide powder. According to the invention, glycerol is introduced as a main carbon source in the early stage and microcosmic coating is realized, so that the contact between the carbon source and chromium sesquioxide is more sufficient, and the reaction efficiency is improved; and meanwhile, the graphite powder is subjected to independent ball milling in advance to control the granularity, so that carbon source demolding is avoided, and better granularity control is realized. The method is flexible in process, and the product is coarse, uniform and stable in granularity.

To provide a method which enables inexpensive production with a high yield of lithium hydroxide with a low amount of impurities such as sodium from lithium-containing water including a lithium ion and a chloride ion.SOLUTION: A production method of lithium hydroxide includes: a crystallizing step of crystallizing lithium hydroxide (LiOH) from lithium-containing water including a lithium ion and a chloride ion; a solid-liquid separation step of performing solid-liquid separation treatment of concentrated liquid including the LiOH to obtain the LiOH as a solid product and filtrate; a carbonation step of producing lithium carbonate from the filtrate by carbonation; a lithium carbonate recovery step of evaporating at least a part of ammonia from a mixed liquid obtained in the carbonation step and performing solid-liquid separation treatment of the resultant treated liquid to obtain lithium carbonate as a solid product; a lithium hydroxide production step of converting the obtained lithium carbonate into LiOH followed by solid-liquid separation treatment to obtain an aqueous LiOH solution (1) as a liquid component; and a recrystallizing step of crystallizing LiOH from the aqueous solution (1).SELECTED DRAWING: Figure 2

The invention discloses anti-crack and anti-alpine concrete and a preparation method thereof, and relates to the technical field of concrete.The anti-crack and anti-alpine concrete is prepared from, by mass, 300-500 parts of low-heat Portland cement, 50-100 parts of carbon sequestration composite superfine powder and 10-20 parts of nano calcium carbonate; the magnesium oxide is calcined at the temperature of 500 to 600 DEG C, is compounded with the calcium sulphoaluminate, and is modified by a silane coupling agent; the phase change microcapsule is formed by packaging paraffin in a silicon dioxide shell layer, and the phase change temperature ranges from-30 DEG C to 10 DEG C; the microbial self-repairing capsule is characterized in that bacillus pasteurii is coated in a sodium alginate-montmorillonite composite carrier; according to the invention, the multi-dimensional performance breakthrough of the high-cold concrete is realized through gradient expanding agent compounding, fiber synergistic enhancement, phase change microcapsule temperature control and microbial self-repairing technologies. The drying shrinkage is reduced to 1.2 * 10 <-4 > by compounding magnesium oxide / calcium sulphoaluminate, the crack propagation is inhibited by a fiber network, and the initial crack threshold value is less than 0.15 mm.

The invention discloses a device for preparing a molten carbon fertilizer through solid waste microwave pyrolysis and waste heat recovery, and belongs to the field of solid waste treatment and recycling. The device is composed of a pretreatment unit, a microwave pyrolysis unit, a gas-solid separation unit, a gas phase treatment unit, a solid phase treatment unit and a waste heat circulation unit, solid waste enters a microwave rotary kiln after being dried and crushed, a magnetron generates microwave anaerobic pyrolysis under photovoltaic power supply, and a high-temperature gas-solid product is generated; the cyclone separator is used for separating flue gas from solid carbon, the flue gas is condensed to obtain pyrolytic oil and gas, and waste heat of medium-temperature flue gas is recovered through the heat accumulating type heat exchanger for drying; cooling the solid carbon through a heat pipe heat exchanger, recovering waste heat and liquefying urea, and mixing the solid carbon and the urea in a stirring melting pool to prepare a molten carbon fertilizer; and the waste heat backflow fan sends the carbon waste heat back to the drying chamber. The system is driven by green electricity, gas and solid phase waste heat is recovered through double paths, solid waste efficient pyrolysis-product high value-energy self-circulation is achieved, and energy consumption and carbon emission are reduced.

A reactor including a vertically oriented vessel with a gas inlet port, a distributor, a feedstock port, and a microwave generator. The reactor is designed to process a carbon feedstock to produce hydrogen gas and a hydrogen deficient carbon product, utilizing a fluidized bed provided with microwave energy. Also disclosed are methods of converting a carbon feedstock, particularly a solid carbon feedstock, into hydrogen gas and a hydrogen deficient carbon product, preferably including carbon nanotubes.

The invention relates to the field of preparation of battery grade carbonic acid, and provides a method for preparing battery grade lithium carbonate by purifying crude lithium carbonate, the preparation method comprises the following steps: screening crude lithium carbonate from different sources, mixing lithium carbonate according to a certain solid-to-liquid ratio, and stirring to obtain dispersed slurry; cO2 gas is introduced into the obtained dispersed slurry for pre-hydrogenation treatment, and mixed slurry containing a lithium bicarbonate solution and solid lithium carbonate is obtained; adding a certain amount of lithium-containing reagent into the obtained mixed slurry, and heating the mixed slurry in a stirring state to obtain treated slurry; carrying out solid-liquid separation to obtain industrial-grade wet lithium carbonate and a lithium bicarbonate solution, and carrying out thermal decomposition on the lithium bicarbonate solution to obtain industrial-grade wet lithium carbonate; and carrying out size mixing, hydrogenation, thermal decomposition and solid-liquid separation on the two parts of industrial-grade wet lithium carbonate, and drying a filter cake to obtain the battery-grade lithium carbonate. The process flow is simple, the impurity removal efficiency is high, and the battery-grade lithium carbonate can be economically and efficiently prepared from the crude lithium carbonate raw materials with different sources and different qualities.

The invention belongs to the field of comprehensive utilization of chromite, and particularly relates to a method for producing high-carbon ferrochrome through chromite pellet prereduction-electric furnace smelting. According to the method, a reduction method that a reducing agent and chromite pellets are fed into a kiln separately is adopted, chromite oxidized pellets are prepared firstly and then reduced through a rotary kiln solid carbon reducing agent, and the obtained pre-reduced pellets are subjected to electric furnace smelting with a calcium flux and a magnesium flux as slagging fluxes to prepare the high-carbon ferro-chrome. The problem that according to an existing method, the metallization rate of the pre-reduced pellets and the adverse effect on electric furnace smelting caused by unstable carbon residues are solved, the production stability of the electric furnace can be improved, and meanwhile the electric furnace smelting temperature can be increased. The method is simple, controllable, low in energy consumption, high in efficiency, high in stability, low in production cost and convenient for industrial application.

A system and method for production of hydrogen from natural gas using a solar powered system are provided. An exemplary solar powered system includes a feed stream including methane and a solar concentrator reactor (SCR) to form hydrogen from the feed stream by pyrolysis. The SCR includes a rotating tubular reactor, a solar absorber material disposed on the rotating tubular reactor, a solar concentrator to focus sunlight on the rotating tubular reactor, and a gas-solid filtration unit to separate solid carbon from the hydrogen. The solar powered system includes a storage tank to hold the hydrogen.

High entropy alloy catalysts may be used for production of hydrogen. An example method of hydrogen production may include: introducing a hydrocarbon to a reactor, wherein the reactor contains therein a catalyst, wherein the reactor is substantially absent of oxygen and water, wherein the catalyst comprises a high entropy alloy and a catalyst support, wherein the catalyst is present in a form of a first plurality of particles, wherein the first plurality of particles is submicron-sized, wherein the high entropy alloy has an entropy, S, such that S≥12.47 J K−1 mol−1, and wherein the high entropy alloy comprises at least five of: iron, cobalt, manganese, nickel, molybdenum, copper, zinc, titanium, chromium, vanadium, aluminum, gallium, ruthenium, rhodium, palladium, silver, indium, tungsten, rhenium, iridium, platinum, gold, and bismuth; and reacting the hydrocarbon over the catalyst to produce solid carbon and hydrogen gas.

The invention relates to the technical field of building materials, in particular to a carbon sequestration concrete solid brick prepared from coal-based solid waste and a preparation method of the carbon sequestration concrete solid brick. The carbon sequestration concrete solid brick is prepared from the following raw materials in parts by weight: 20 to 30 parts of fly ash, 65 to 75 parts of furnace bottom slag and 5 parts of cement, wherein the fly ash is secondary ash, the particle size of the furnace bottom slag is smaller than or equal to 4.75 mm, and the mark number of the cement is P.O 42.5. The method comprises the following steps: firstly, enabling carbon dioxide to react with alkaline components such as dicalcium silicate in the fly ash to form carbonate so as to realize effective carbon sequestration; and then through secondary mineralization maintenance, carbon dioxide, active components such as calcium and magnesium in the cement and dicalcium silicate which is not completely reacted in the fly ash are subjected to carbonation reaction, so that a product layer filling effect is realized. According to the invention, the building material with good carbon sequestration performance and excellent mechanical properties is prepared by utilizing industrial solid waste and carbon dioxide, so that energy conservation and emission reduction are realized, meanwhile, greenhouse gas emission is reduced, and the performance of the building solid waste brick is enhanced.

The present invention proposes a water treatment system that couples anoxic biofilters with artificial wetlands, belonging to the field of water treatment technology. The key technical points are: sewage is collected through a pipe network and flows into a water collection pool, and then enters a regulating / anoxic pool through a lift pump. The solid carbon source in the pool provides a carrier for microorganisms while achieving slow-release supplementation of the carbon source, thereby strengthening the denitrification reaction to remove total nitrogen. The system is then transported to a biofilter and a contact oxidation pool by a lift pump, and COD and ammonia nitrogen are removed through carbon oxidation and nitrification reactions. The effluent enters a high-efficiency clarifier, and after most of the total phosphorus and SS are removed through chemical phosphorus removal and coagulation and sedimentation, the overflow enters an artificial wetland, and is subjected to a comprehensive treatment of plant-microorganism-filler to deeply purify the pollutants and meet the discharge standards. Using the water treatment method of the present application, the effluent water quality can be improved to the Class B emission standard.

Method for softening produced oilfield brine for enhanced oil recovery, the method including dissolving gaseous carbon dioxide and a base in a produced oilfield brine that includes divalent ions to yield solid carbonates, filtering the solid carbonates to yield a softened water, and injecting the softened water into a subterranean formation.

A process includes receiving, in an unheated coke drum, a feedstock comprising a solid carbon-based material, heating the unheated coke drum and the feedstock comprising the solid carbon-based material to a first temperature to form a heated feedstock comprising the solid carbon-based material in a semi-solid state or a melted state in a heated coke drum, and processing the heated feedstock comprising the solid carbon-based material in the semi-solid state or the melted state in the heated coke drum with a heated petroleum residue-containing feedstock at a second temperature and under reaction conditions to convert at least a portion of the heated feedstock comprising the solid carbon-based material in the semi-solid state or the melted state to a product stream including a gas phase including hydrocarbons and hydrogen, and coke.

The utility model relates to the technical field of engine waste gas sampling, and discloses an engine waste gas sampling preposed filtering and heating device which comprises a base, an upper seat, a center rod and an inner-layer cylinder wrapping barrel, the base and the upper seat are respectively connected with two ends of the inner-layer cylinder wrapping barrel, and an electric heating belt is wound on the outer wall of the inner-layer cylinder wrapping barrel. The electric heating belt is connected with an external electric heating device, the center rod is arranged in the inner-layer cylindrical wrapping barrel and connected with the base and the upper seat, the center rod is of a hollow structure, a plurality of gas filtering through holes are formed in the outer wall of the center rod, a filter element is arranged outside the center rod, and a waste gas inlet connector communicated with the center rod is arranged on the base. And the upper seat is connected with a waste gas outlet joint extending out of the inner-layer cylindrical wrapping barrel and the outer-layer cylindrical wrapping barrel. Impurity dust, solid carbon particles and oil liquid are filtered in the filter element, cleanliness and environmental protection are achieved, the filter element and heating materials are all purchased in the market and do not need to be specially customized, cost is saved, and the maintenance period is shortened.

The invention discloses a self-adaptive intelligent response type carbon quantum dot oil displacement agent and a preparation method thereof, and belongs to the technical field of petrochemical engineering. The preparation method comprises the following steps: dissolving glucose and urea in deionized water for carbonization reaction to obtain a product solution; carrying out first post-treatment on the product solution to prepare solid carbon quantum dot powder; adding N-isopropylacrylamide and a cross-linking agent N, N-methylene bisacrylamide into the carbon quantum dot solution, stirring and dissolving, and then adding an initiator ammonium persulfate to carry out free radical polymerization reaction to generate a modification layer; after the polymerization reaction is finished, carrying out secondary post-treatment to prepare functionalized carbon quantum dot powder; an emulsion is prepared from an aqueous solution of the functionalized carbon quantum dots and n-hexane, and the emulsion is subjected to ultrasonic treatment to prepare the self-adaptive intelligent response type carbon quantum dot oil-displacing agent. The oil-displacing agent prepared by the preparation method shows excellent self-adaptability under complex temperature change conditions, has good stability and is environment-friendly.

An apparatus for extracting and utilizing noble gases from carbonate rock includes a container body. A gas-solid separation assembly defines filter pores, and a diameter of each filter pore is micrometer-scale. A mechanical crushing assembly is disposed at a bottom of the gas-solid separation assembly, and is configured to crush a carbonate-rock sample until particles each have a size on the order of micrometers or larger. The gas-solid separation assembly is elastic. The particle deposition device is disposed inside a crushing chamber. The particle deposition device includes connecting ropes and spheres. The connecting ropes are fixed to an inner wall of the crushing chamber, and the spheres are fixed to the connecting ropes. This apparatus not only avoids the generation of large quantities of impurity components, but also separates solid carbonate-rock sample particles from the noble gases, enabling effective extraction of the noble gases from the carbonate-rock sample for utilization.

To provide a treatment method capable of efficiently decomposing rubber in a short time and effectively utilizing the rubber, in particular, to provide a treatment method capable of efficiently producing hydrogen gas and solid carbon from a raw material containing the rubber in a short time, and to provide a mixture suitably used for producing the hydrogen gas and the solid carbon.SOLUTION: A treatment method of the present invention includes a hydrogen-carbon production step of irradiating a mixture of a raw material containing rubber and a catalyst containing an iron-based catalyst with microwaves to selectively heat and activate the iron-based catalyst, and decomposing the rubber in the presence of the iron-based catalyst to produce hydrogen gas and solid carbon.SELECTED DRAWING: None

The present invention provides a method for producing a sintered ore, with which it is possible to improve granulation properties of a sintering starting material even in cases where PKS charcoal is mixed with the sintering starting material in order to reduce the discharge amount of carbon dioxide, and ore concentrate is mixed with the sintering starting material in order to increase the total Fe amount.　The method for producing a sintered ore comprises: a starting material blending step (step S101) for blending and granulating an iron starting material and a solid carbonaceous material that contains a first carbonaceous material and a second carbonaceous material so as to produce a sintering starting material; a starting material layer formation step (step S102) for supplying the sintering starting material onto a pallet of a sintering machine so as to form a starting material layer; and a sintering step (step S103) for igniting and firing the upper surface of the starting material layer so as to produce a sintered ore. In the starting material blending step (step S101), palm shell charcoal is blended as the first carbonaceous material, and a carbonaceous material derived from a fossil fuel is blended as the second carbonaceous material. The arithmetic average particle diameter of the palm shell charcoal is smaller than the arithmetic average particle diameter of the second carbonaceous material.

The disclosure presents an integrated system consisting of a wastewater production unit, e-methane reactor, an electrolyzer for producing hydrogen, a cryogenic separation unit and an ammonia production unit, where e-methane is produced by reaction of carbon dioxide obtained from direct air capture / biogenic CO2 / captured industrial CO2 emissions / oxidized solid carbon, and from CO2 separated from biogas obtained from wastewater treatment, and hydrogen gas from electrolysis of water. The hydrogen gas is also reacted with nitrogen obtained from the cryogenic unit for the synthesis of ammonia, where heat from ammonia synthesis is transferred to e-methane reactor for energy efficiency. By integrating these units and reactors, the disclosure provides a system for efficient use of energy and by-products.

To provide a thermal pyrolysis system.SOLUTION: Systems and methods that incorporate a kinetic booster component into thermal pyrolysis systems are disclosed herein. For example, a method according to the present technology can include receiving an input flow of the hydrocarbon reactant from a supply of a hydrocarbon reactant, then modifying the input flow to generate a modified input flow. The modified input flow can have a lower activation energy than an unmodified flow and / or can include one or more catalysts for a pyrolysis reaction. The method can then include heating the modified input flow within a pyrolysis chamber of a pyrolysis reactor. The hearting process can drive a pyrolysis reaction in the modified input flow that generates solid carbon and hydrogen gas. The method can then include removing at least a portion of the solid carbon from the hydrogen gas in an output flow from the pyrolysis reactor.SELECTED DRAWING: Figure 1

The invention discloses a boron-doped porous silicon-carbon composite material and a preparation method thereof.The preparation method comprises the following steps that S1, silicon dioxide, a solid carbon source and boron-containing particles are subjected to high-energy ball milling, and a mixed product A is obtained; s2, mechanically mixing the mixed product A with magnesium powder to obtain a mixed product B; s3, putting the mixed product B into a reactor, roasting for 6-9 hours at 600-1000 DEG C under an inert condition, and naturally cooling to obtain a mixed product C; and S4, sequentially carrying out acid pickling on the mixture C in dilute acid and hydrofluoric acid, then cleaning with pure water and absolute ethyl alcohol, and carrying out centrifugal drying to obtain the boron-doped porous silicon-carbon composite material. The method is simple in process and low in raw material cost, and the prepared boron-doped porous silicon-carbon composite material is high in conductivity and good in cycling stability.

A reactor including a vertically oriented vessel with a gas inlet port, a distributor, a feedstock port, and a microwave generator. The reactor is designed to process a carbon feedstock to produce hydrogen gas and a hydrogen deficient carbon product, utilizing a fluidized bed provided with microwave energy. Also disclosed are methods of converting a carbon feedstock, particularly a solid carbon feedstock, into hydrogen gas and a hydrogen deficient carbon product, preferably including carbon nanotubes.

This invention provides a method for low-temperature reduction roasting pretreatment of chromite pellets under a CH4-containing reducing atmosphere, belonging to the field of metallurgical technology. The method includes the following steps: mixing chromite powder, binder, and water to form pellets, obtaining green chromite pellets; mixing CH4 and a reducing gas to obtain a CH4-containing reducing atmosphere, wherein the reducing gas includes H2 and / or CO; and reducing roasting the green chromite pellets in the CH4-containing reducing atmosphere. This invention introduces CH4 gas into the reducing atmosphere, without using solid carbon. CH4 can decompose and release carbon at relatively low temperatures, which is beneficial for the smooth operation of common industrial equipment. The released carbon has high activity and can effectively dissociate the spinel phase in chromite, and rapidly achieve effective reduction of Fe and Cr oxides therein, obtaining chromite pellets with a certain degree of pre-reduction of metallic iron and chromium and a certain strength.

A method for storing solid carbon and / or carbon dioxide is disclosed.

This invention provides a catalytic medium, apparatus, and method for preparing graphene. The catalytic medium comprises a first metal element (magnesium), a second metal element, and a halide salt. The apparatus includes a reaction system, a gas dispersion and treatment system, a solid carbon collection system, and a gas recovery system. The reaction system includes a first reactor and a second reactor. The gas dispersion and treatment system includes a first aeration device, a second aeration device, a first rotary stirrer, and a second rotary stirrer. The solid carbon collection system includes a first cyclone separator, a second cyclone separator, and a carbon material collection chamber. The graphene preparation method of this invention enables high-quality, low-cost mass production of graphene, extends the service life of the catalytic medium, and achieves high activity, long cycle time, and stable operation. This method utilizes CO2 resources, is environmentally friendly, low-cost, and significantly improves the feed gas conversion rate and graphene quality.

The invention belongs to the field of biogas treatment, and relates to plastic-based nitrogen-doped porous activated carbon, a preparation method and application thereof, and a method for removing carbon dioxide in biogas. The preparation method of the plastic-based nitrogen-doped porous activated carbon comprises the following steps: mixing PET plastic pyrolytic carbon with urea, carrying out high-temperature nitrogen-doped reaction on the obtained urea-carbon black mixture under the protection of inert gas, cooling, mixing the obtained nitrogen-doped carbon material with potassium hydroxide, and drying to obtain the plastic-based nitrogen-doped porous activated carbon. And grinding the obtained modified nitrogen-doped carbon material, and performing high-temperature activation treatment under the protection of inert gas to obtain the plastic-based nitrogen-doped porous activated carbon. The preparation method is characterized in that solid carbon obtained after pyrolysis of PET plastic is taken as a raw material, urea is taken as a nitrogen source, and potassium hydroxide is adopted for pore forming, so that the obtained plastic-based nitrogen-doped porous activated carbon has relatively high CO2 adsorption capacity, CO2 in biogas can be removed at room temperature, the influence of repeated use of the porous activated carbon on the adsorption effect of CO2 is relatively small, and the adsorption efficiency is relatively high. The cycle performance is excellent.

The invention belongs to the technical field of metallurgy, and particularly discloses a system and method for preparing magnesium metal through vacuum carbon thermal reduction.The system comprises a reactor cavity, a vacuumizing module and a temperature regulation and control module, a reaction area and a first condenser are arranged in the reactor cavity, and the reaction area is used for generating high-temperature mixed gas containing CO gas and magnesium steam; the first condenser is detachably mounted at the downstream of a high-temperature mixed gas containing CO gas and magnesium steam generated in the reaction zone, and the first condenser is used for generating solid magnesium containing solid carbon and solid magnesium oxide impurities; a high-temperature reaction melt is arranged in the reaction area and is used for receiving solid carbon and solid magnesium oxide from the first condenser; the vacuumizing module is used for vacuumizing the reactor cavity, and the temperature regulation and control module is used for detecting and controlling the temperature of each part in the reactor cavity. By adopting the technical scheme, the yield of metal magnesium is improved through the cavity structure of the reactor.

The embodiment of the invention provides a preparation method of graphene composite powder. The preparation method comprises the following steps: adding a mixed material of powder and a solid carbon source into a reaction cavity; vacuumizing the interior of the reaction cavity, and then filling inert gas to normal pressure; treating the mixed material in the reaction cavity by adopting an acoustic resonance process, and setting sound wave frequency, acceleration, treatment time and material temperature; and collecting products, and cleaning and separating powder. A mixed material in a reaction cavity is treated by adopting an acoustic resonance process, direct contact friction between a grinding material and powder is avoided through acoustic resonance mixing, the risk that impurities are introduced due to mechanical abrasion is reduced, and the problems that the cost is high and the compounding efficiency is low when graphene powder is prepared through a conventional vapor deposition method are solved; the acoustic streaming effect generated by resonance can permeate into the powder aggregate, the aggregate structure is effectively disassembled and is not influenced by different material densities, powder particles with different particle sizes and different components are promoted to be uniformly dispersed and interacted, and the shape of the original powder is not changed.