27 results about "Thermal pyrolysis" patented technology

The invention discloses a method for preparing an iron-nickel-molybdenum-based electrocatalyst through combination of electrodeposition and rapid Joule heat and application of the method. The method comprises the steps that S1, a porous nickel substrate is pretreated, and the pretreated porous nickel substrate is obtained; s2, obtaining a nickel salt solution, a molybdenum salt solution and a ferric salt solution; s3, obtaining a mixed solution; s4, putting the mixed solution serving as electrolyte into a dual-electrode electrolytic tank, carrying out electro-deposition treatment by taking the pretreated porous nickel substrate as a cathode and an inert electrode as an anode, and washing and drying to obtain a Fe-Ni-Mo-LDH precursor; and S5, carrying out Joule thermal pyrolysis treatment on the Fe-Ni-Mo-LDH precursor, so as to obtain the iron-nickel-molybdenum based electrocatalyst. The preparation method can effectively regulate and control the size structure of the catalyst, and is suitable for preparing iron-nickel-molybdenum-based electrocatalysts with different substrates and different sizes; and the electrocatalyst has the advantages of uniform and stable nanostructure and high loading capacity. Meanwhile, the preparation method is short in reaction time, high in heating efficiency, high in repeatability and suitable for industrial large-scale production.

A heatsink comprising a heat exchange device having a plurality of heat exchange elements each having a surface boundary with respect to a heat transfer fluid, having successive elements or regions having varying size scales. According to one embodiment, an accumulation of dust or particles on a surface of the heatsink is reduced by a removal mechanism. The mechanism can be thermal pyrolysis, vibration, blowing, etc. In the case of vibration, adverse effects on the system to be cooled may be minimized by an active or passive vibration suppression system.

A heatsink comprising a heat exchange device having a plurality of heat exchange elements each having a surface boundary with respect to a heat transfer fluid, having successive elements or regions having varying size scales. According to one embodiment, an accumulation of dust or particles on a surface of the heatsink is reduced by a removal mechanism. The mechanism can be thermal pyrolysis, vibration, blowing, etc. In the case of vibration, adverse effects on the system to be cooled may be minimized by an active or passive vibration suppression system.

The invention discloses a system and a method for co-producing graphite carbon and hydrogen through biomass two-stage pyrolysis, and belongs to the technical field of biomass pyrolysis. The system comprises a low-temperature pyrolysis module and a continuous Joule thermal pyrolysis module. The Joule pyrolysis reactor is designed into a wheel disc type, so that biomass pyrolysis reactions can be linked into a whole, the reactions are continuously carried out, the starting and stopping time of a pyrolysis module is shortened, the economical efficiency of the whole system is improved, and graphite carbon and hydrogen are more efficiently obtained. By utilizing the system, firstly, biomass is subjected to low-temperature pyrolysis and condensation to obtain pyrolytic carbon and bio-oil, then the pyrolytic carbon is subjected to Joule thermal pyrolysis, condensation and purification to obtain graphite carbon, bio-oil and hydrogen-rich synthesis gas, the low-cost biomass is used as a raw material to prepare graphite carbon and hydrogen, and fossil resources used in traditional graphite carbon preparation are saved. The system can be better used for industrial production, and co-production of graphite carbon and hydrogen is achieved.

The invention discloses a Joule thermal preparation method of a carbon-supported high-entropy sulfide catalyst and application of the carbon-supported high-entropy sulfide catalyst in a zinc-air battery. A metal chlorine salt solution is used as a metal precursor, and sulfur is used as a sulfur source. Sulfur, carbon powder and a metal chlorine salt solution are uniformly mixed and loaded on a conductive carrier, and Joule heat treatment is carried out. Instantaneous high temperature acts on a carbon-supported metal precursor, the metal precursor is decomposed, S8 is decomposed into high-activity S2 gas, diffusion of sulfur atoms is accelerated at high temperature, combination of S2 and reduced metal atoms is promoted, sulfide bonds are formed, meanwhile, segregation is inhibited through rapid cooling, and finally the uniform single-phase carbon-supported high-entropy sulfide catalyst is formed. The uniformly distributed carbon-loaded high-entropy sulfide catalyst is prepared by Joule thermal pyrolysis, the preparation method is simple, energy-saving and environment-friendly, and the catalyst can simultaneously catalyze an oxygen reduction reaction and an oxygen evolution reaction, is used as a bifunctional catalyst for a zinc-air battery, has excellent catalytic activity and stability, and is easy to popularize and use.

A process for the recycling of plastic waste containing at least one of polyethylene or polypropylene comprising the steps a) thermal pyrolysis in an inert atmosphere of the plastic waste to obtain a pyrolysis oil, b) optionally purifying the pyrolysis oil obtained in step a), c) fractionating the pyrolysis oil to obtain at least one fraction of lower boiling hydrocarbons that can be further processed in a cracker, in particular a steam cracker, to give hydrocarbons of lower molecular weight, and at least one fraction of high-boiling residues, d) incinerating high-boiling residues obtained in step c) with an oxygen containing gas, wherein a carbon dioxide containing flue gas stream is obtained, e) purifying the carbon dioxide containing flue gas stream obtained in step d), wherein a purified carbon dioxide containing gas stream is obtained, f) reduction of the carbon dioxide contained in the gas stream obtained in step e) to obtain a gas stream containing carbon monoxide, optionally carbon dioxide and optionally hydrogen, g) optionally admixing hydrogen, preferably produced by water electrolysis, to the gas stream obtained in step f), h) reacting a gas mixture containing carbon monoxide, hydrogen and optionally carbon dioxide obtained in step f) or g) to give methanol, i) manufacturing C2-C4-olefins by a methanol to olefin-process from methanol obtained in step h), j) polymerizing ethylene and / or propylene manufactured in step i) to give polyethylene and / or polypropylene, respectively.

The invention provides a nano-plastic detection device and method based on an optical fiber sensing-thermal cracking mass spectrometry technology, and solves the technical problems that the existing nano-plastic detection result is easy to deviate, and the type, particle size and quality of water nano-plastic are difficult to rapidly capture. The pyrolysis device comprises a closed heating cavity, an electromagnetic induction coil is wound on the closed heating cavity, the closed heating cavity is hermetically communicated with a carrier gas inlet pipe, a water vapor outlet pipe and a pyrolysis gas outlet pipe, and a sample tank is arranged in the closed heating cavity; the filter is arranged in the cracked gas outlet pipe; the closed heating cavity comprises a cover body and a base; a filter layer is arranged at the bottom of the sample tank and comprises a filter membrane layer and a metal heating plate, filter holes of the filter membrane layer are smaller than the particle size of the nano-plastic, the heat-resistant temperature of the filter membrane layer is higher than the thermal cracking temperature of the nano-plastic, and the metal heating plate is provided with a filtrate channel; the suction filtration device comprises a suction filtration head; the suction filtration head is communicated with the sample groove through a filter layer; the system further comprises an optical fiber sensing device. The method can be widely applied to the technical field of nano-plastic pollution detection.

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

Disclosed are methods for upgrading heavy aromatic waste streams, including polystyrene and other related materials, to chemical feedstocks. Process embodiments include feeding heavy aromatic waste streams to: a) thermal pyrolysis followed by catalytic pyrolysis; b) thermal pyrolysis followed separation of thermal pyrolysis effluent to light and heavy streams followed by catalytic pyrolysis of the light stream; c) thermal pyrolysis followed by catalytic pyrolysis of the thermal pyrolysis effluent followed separation of the catalytic pyrolysis effluent to light and heavy streams; and d) thermal pyrolysis followed separation of thermal pyrolysis effluent to light and heavy streams followed by catalytic pyrolysis of the light stream followed by separation of the catalytic pyrolysis effluent to light and heavy streams. Each embodiment leads to production of ethylene, propylene, benzene, ethylbenzene, ethylbenzene precursors, or a combination thereof.

The present disclosure relates to a novel technology that uses concentrated solar radiation to convert hydrocarbons into olefins (such as ethylene and propylene), which are precursors to a myriad of industrial products, including plastics and resins. This process is a disruptive, emissions-free alternative to conventional steam-cracking olefin production that emits high levels of CO2, instead generating a valuable solid carbon co-product that can be used for battery electrodes and other applications.

This invention provides a method for preparing and applying a catalyst for co-thermal pyrolysis of waste plastics and biomass, comprising the following steps: Step 1, mixing FCC waste catalyst, sodium carbonate, and a metal oxide precursor uniformly to form a powder; Step 2, modifying HZSM-5 molecular sieve with phosphorus; Step 3, mixing the mixture obtained in Step 1, the phosphorus-modified ZSM-5 molecular sieve from Step 2, a binder, and water to form microspheres, calcining to obtain the catalyst for co-thermal pyrolysis of waste plastics and biomass. The catalyst prepared by this invention has a large pore size and pore volume, and when used for co-thermal pyrolysis of waste plastics and biomass, the liquid yield is greater than 70%.

Disclosed are methods for upgrading heavy aromatic waste streams, including polystyrene and other related materials, to chemical feedstocks. Process embodiments include feeding heavy aromatic waste streams to: a) thermal pyrolysis followed by catalytic pyrolysis; b) thermal pyrolysis followed separation of thermal pyrolysis effluent to light and heavy streams followed by catalytic pyrolysis of the light stream; c) thermal pyrolysis followed by catalytic pyrolysis of the thermal pyrolysis effluent followed separation of the catalytic pyrolysis effluent to light and heavy streams; and d) thermal pyrolysis followed separation of thermal pyrolysis effluent to light and heavy streams followed by catalytic pyrolysis of the light stream followed by separation of the catalytic pyrolysis effluent to light and heavy streams. Each embodiment leads to production of ethylene, propylene, benzene, ethylbenzene, ethylbenzene precursors, or a combination thereof.

The present invention discloses a green electricity microwave discharge plasma methane pyrolysis hydrogen and carbon co-production system and method, belonging to the technical field of methane thermal pyrolysis for hydrogen production. The system includes a green electricity power supply system, a gas supply system, a microwave discharge plasma pyrolysis system, a carbon product separation and collection system, a gas circulation system, and a gas separation and purification system. The present invention can achieve a methane conversion rate of >95% under low flow rate and low energy consumption, realizing the efficient pyrolysis of methane; the directional and controllable generation of products can be achieved by adjusting the microwave power and the gas composition in the gas supply system, and the directional selective regulation of gaseous products such as ethane and pure hydrogen can be achieved by changing the gas circulation.

The application relates to the technical field of resource recycling, and particularly discloses a resource recycling system based on concentrated solar pyrolysis, which comprises a feeding bin, a multistage heat absorption channel and a plurality of light concentrating components; the multistage heat absorption channel is internally provided with a plurality of flow guide plates, and the multistage heat absorption channel is internally configured to form a waste salt flow channel through the plurality of flow guide plates; the feeding bin is configured to be in communication with the multistage heat absorption channel; the multistage heat absorption channel is provided with at least one light transmission part for allowing a focused light source to enter the waste salt flow channel; the flow guide plates and / or the multistage heat absorption channel are provided with at least one reflection part for reflecting the light source; the resource recycling system based on concentrated solar pyrolysis can store and utilize the product salt after high-temperature pyrolysis as a molten salt material, can adopt pyrolytic carbon material as a molten salt thermal physical property enhancer, and can improve the cleanliness and resource property of the product.

This invention provides an energy-saving pyrolysis device and method for waste tire recycling. The pyrolysis method includes the following steps: S1: Feeding: Waste tires are hung horizontally on a feeding component; waste tires are fed; waste tires are discharged; S2: Pyrolysis: The feed inlet is sealed; waste tires are pyrolyzed; waste tires are dispersed: The pyrolysis furnace rotates to pyrolyze the waste tires, causing the feeding component to rotate and disperse the waste tires inside the pyrolysis furnace. In this invention, the waste tires are laid horizontally, sequentially, and evenly at the bottom of the pyrolysis furnace, replacing the existing method of using a feeder to push tires through the feed inlet into the inner furnace, which causes waste tires to accumulate near the feed inlet. This facilitates subsequent thermal pyrolysis of the waste tires inside the inner furnace, increases the pyrolysis speed, shortens the pyrolysis time, and achieves energy-saving effects.

The invention discloses a gas heat carrier internal heating type pyrolyzing furnace. Belongs to the technical field of biomass pyrolysis and comprises a material distributor, a rotational flow plasma gas generation ejector, a screw vortex stirrer, a roller grate and the like. Biomass enters the furnace body through the feeding device and is evenly distributed in the furnace body through the material distributor, the drying and volatilization analysis process is completed, refined control over reaction conditions can be achieved through temperature and pressure measuring points, and the rotational flow plasma gas generator is arranged below the gas uniformizing chamber so that plasma energy loss can be reduced to the maximum extent. A screw vortex stirrer stirs the biochar to enable the biochar to be uniformly impacted by high-energy plasmas and form vortex in the center, so that pyrolysis gas quickly leaves the holes, and after activation is completed, the pyrolysis gas enters carbon cooling equipment through a roller grate arrangement and is cooled by two sections of carbon cooling bins; the system has the advantages of integration of activated carbon production and activation, low energy consumption, high energy utilization rate, high activated carbon yield, high activated carbon quality, stable system operation and low maintenance cost.

The present application relates to a method and a device system for producing feed stock of ethylene steam cracker and a nano-carbon material from waste plastics, and the method comprises: firstly, subjecting a waste plastic to thermal pyrolysis to obtain hydrocarbon oil and gas from thermal pyrolysis; then, subjecting the hydrocarbon oil and gas from thermal pyrolysis to gas-liquid separation to obtain crude plastic pyrolysis oil and pyrolysis gas; subsequently, subjecting the pyrolysis gas to decarbonization to obtain a nano-carbon material, and sequentially subjecting the crude plastic pyrolysis oil to hydrocracking and fractionating to obtain the feed stock of ethylene steam cracker. The device system comprises a thermal pyrolysis unit, a gas-liquid separation unit, a hydrocracking unit, a fractionating unit, and a decarbonization unit. The method and device system provided in the present application can prepare the steam-cracking feedstock of ethylene steam cracker with a high proportion of chain alkanes, which can achieve a higher yield of target products when used to produce downstream products, and the production process has no carbon dioxide emission, and is green and clean. The device system provided in the present application has a simple structure and can be used in industrial application.

The invention relates to a waste biomass utilization and solar energy utilization technology, and aims to provide a biomass photo-thermal pyrolysis device utilizing solar energy. The device comprises a storage container and a reaction container which are nested, and the tops of the storage container and the reaction container are connected to form a sealing structure with a feeding hole and a quartz glass window; an inner cavity of the reaction container is used as a pyrolytic reaction chamber, a cavity between the two containers is used as a pyrolytic oil storage chamber, and the two chambers are connected through a pyrolytic oil gas circulation pipeline; a pyrolysis gas discharge pipeline and a pyrolysis oil discharge pipeline are arranged on the storage container; a pyrolytic carbon discharge pipeline penetrating through the storage container downwards is arranged at the bottom of the reaction container, and a valve is arranged on each pipeline. The reaction container is not only a pyrolysis reactor, but also an internal heat accumulator of the whole device, and can effectively accumulate heat energy and utilize the heat energy to bake the biomass which is not completely reacted. The waste heat of the pyrolysis gas is utilized to heat the pyrolysis oil, so that the heat tracing consumption is reduced; the device is simple, wide in application range and high in practicability.

The invention provides an industrial solid waste-based carbon powder catalyst as well as a preparation method and application thereof, and relates to the technical field of chemical recovery of waste plastics. The industrial solid waste-based carbon powder takes biochar as a substrate, and effective components comprise biomass components and element components such as silicon, aluminum, iron, calcium, magnesium and titanium. The waste plastic cracking method comprises the following steps: adding waste plastic and a catalyst into a batch reactor, and then carrying out waste plastic thermal cracking at a certain temperature to prepare oil. The plastic comprises polyethylene and polypropylene; the plastic oil is C5-C20 hydrocarbon substances and comprises alkane, olefin and aromatic hydrocarbon; the catalyst is an industrial solid waste-based carbon powder catalyst. Efficient conversion of waste plastics can be achieved, the prepared fuel oil is high in yield and heat value, and the problem of plastic garbage pollution can be effectively relieved; the adopted catalyst is low in cost and has good economic feasibility.

System for the adsorption of Co(II) ions from aqueous solutions, comprising: a) a raw material processing unit configured to collect waste date palm fruits of the Khenaizy and Qush Zabad varieties, wash them with deionized water, dry them at 60°C for 24 hours, grind them into a fine powder and sieve the powder to obtain uniform particle sizes; b) a pyrolysis and activation unit functionally connected to the raw material preparation unit, wherein the dried and sieved powder is subjected to thermal pyrolysis in a tube furnace under a nitrogen gas atmosphere at temperatures of 500°C, 600°C and 700°C for two hours at a controlled heating rate of 10°C per minute, followed by physical activation using carbon dioxide gas at 400°C for one hour to increase the porosity and adsorption capacity, after which the activated carbon is crushed and sieved to obtain particles in the size range of 250-300 µm; c) a unit for characterizing the adsorbent, configured to analyze the functional surface groups of the activated carbon using Fourier transform infrared spectroscopy (FTIR) and to evaluate its structural morphology and elemental composition using scanning electron microscopy (SEM) in conjunction with energy-dispersive X-ray spectrometry (EDS); d) an adsorption test unit operationally linked to the adsorbent characterization unit and configured to evaluate the adsorption efficiency of the activated carbon in removing Co(II) ions from aqueous solutions by performing batch adsorption studies with varying initial Co(II) concentrations (10-100 mg / L), contact time and solution temperature (25-45°C), wherein 10 mg of activated carbon is placed in conical flasks containing Co(II) solutions and placed on an orbital shaker, calculating the percent removal of Co(II) ions and the adsorption capacity using standard adsorption equations; e) a unit for analyzing the adsorption isotherm, configured to determine the adsorption behavior of Co(II) ions by evaluating equilibrium adsorption using the Langmuir and Freundlich isotherm models, whereby the adsorption capacity, efficiency and surface interaction properties of the activated carbon are determined based on experimental data; wherein the system provides an efficient, cost-effective and environmentally friendly solution for wastewater treatment by using date palm waste as a source of activated carbon, thereby optimizing the removal of heavy metal ions and reducing industrial pollution.

The invention discloses a method for preparing a wave-absorbing material through Joule thermal pyrolysis of an out-of-service fan blade, and belongs to the technical field of waste recycling and electromagnetic wave absorbing materials. The pyrolysis temperature is regulated and controlled by controlling Joule heat input current and reaction time, chemical reaction of inorganic components in the fan blade powder can be realized within extremely short time in a high-temperature field, so that the high-performance composite wave-absorbing material under the combined action of various loss mechanisms is prepared; and the method is of great significance in improving the practical applicability and economical efficiency of the retired fan blade. According to the method, green resource recycling and high-value utilization of waste are achieved, meanwhile, Joule heat is adopted for pyrolysis, the heat transfer efficiency can be effectively improved, and compared with traditional pyrolysis, needed energy consumption is reduced.

The invention discloses a qualitative and semi-quantitative synchronous detection method for micro-plastics and polycyclic aromatic hydrocarbons loaded on the micro-plastics in an environmental water body. The method comprises the following steps: constructing a detection model for qualitative and semi-quantitative analysis of the micro-plastics and the polycyclic aromatic hydrocarbons loaded on the micro-plastics; determining detection conditions and setting instrument parameters; determining indication fragments corresponding to the target polycyclic aromatic hydrocarbon and the target micro-plastic; establishing a standard curve of each target polycyclic aromatic hydrocarbon and each target micro-plastic; the method comprises the following steps: collecting a to-be-detected environmental water sample, enriching micro-plastics in the to-be-detected environmental water sample, and sequentially carrying out thermal desorption-gas chromatography-mass spectrometry detection and thermal cracking-gas chromatography-mass spectrometry detection; and analyzing gas chromatography-mass spectrometry detection data according to the detection model to realize qualitative and semi-quantitative synchronous detection and analysis of the micro-plastics and the loaded polycyclic aromatic hydrocarbons in the environmental water body to be detected. The detection method provided by the invention can realize integrated sample treatment and qualitative and semi-quantitative analysis of micro-plastic-polycyclic aromatic hydrocarbon combined pollution in the environmental water body, and improves the detection efficiency and the comparability and integrity of data.

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.

The application relates to the technical field of waste and old tire regeneration treatment, in particular to a waste and old tire thermal cracking regeneration equipment which comprises a crushing device, a heat exchange device, a heating device, a thermal cracking chamber, an exhaust valve, a first heat-conducting inner container, an exhaust pipe, a first shell, an auger conveyor and a first conveying pipe; the exhaust valve is communicatively arranged at the bottom end of the thermal cracking chamber; the first heat-conducting inner container is arranged on the inner side wall of the thermal cracking chamber; the output end of the exhaust pipe is communicatively arranged at the top of the thermal cracking chamber; the auger conveyor is arranged in the first shell, a heating cavity is arranged between the auger conveyor and the first shell, the input end of the exhaust pipe is communicatively arranged on the upper portion of the auger conveyor, and the lower portion of the auger conveyor is in communication with the crushing device; the input end of the first conveying pipe is communicatively arranged at the top of the thermal cracking chamber, and the output end of the first conveying pipe is in communication with the heat exchange device; the waste and old tire thermal cracking regeneration equipment can improve the thermal cracking efficiency of the tire, improve the full recycling effect of heat, reduce the processing energy consumption and improve the energy-saving and environment-friendly effect.

The invention belongs to the field of thrusters, and particularly relates to an electrical stimulation response type thruster combustion enhancing device and method.The device comprises an electronic control solid thruster afterburning grain arranged between a main combustion chamber outlet and a spray pipe of an electronic control solid thruster; a through hole communicated with the main combustion chamber and the spray pipe is formed in the middle of the electronic control solid thruster afterburning grain; the electronic control solid thruster afterburning grain is used for generating oxygen-enriched fuel gas through thermal pyrolysis, the oxygen-enriched fuel gas and high-temperature fuel-enriched fuel gas generated through incomplete reaction combustion in the main combustion chamber are subjected to mixed combustion, and the electronic control solid thruster afterburning grain has combustion controllability. According to the electrical stimulation response type thruster combustion enhancing device, the electronic control solid thruster afterburning grain with the controllable non-self-sustaining combustion characteristic is introduced, and the overall energy conversion efficiency and thrust performance of the thruster are greatly improved on the premise that the inherent switching accuracy and responsiveness of the electronic control solid thruster are not sacrificed at all.

The utility model provides semi-continuous feeding and deslagging equipment for thermal cracking of waste tires, which belongs to the technical field of thermal cracking treatment of waste rubber and plastic and comprises a reaction kettle, a feeding and deslagging device and a water spraying and steam stripping device, the reaction kettle is of an external rotation type and comprises a reaction kettle barrel body and a reaction kettle spiral blade which is spirally arranged along the inner wall of the reaction kettle barrel body; the feeding and deslagging device is connected with one end of the reaction kettle and is used for conveying pyrolysis materials into the reaction kettle or deslagging; the water spraying and steam stripping device is connected with the other end of the reaction kettle and is used for spraying water into the reaction kettle; comprising a high-pressure spiral nozzle and a rotary joint, the high-pressure spiral nozzle is arranged in the reaction kettle; the rotating joint is arranged outside the reaction kettle, and the movable end is connected with the high-pressure spiral nozzle. The utility model solves the technical problem that the existing pyrolysis equipment is low in vaporization rate and pyrolytic oil yield, and has the characteristics of high vaporization rate, pyrolytic oil yield, extraction rate and light oil yield.

The invention belongs to the technical field of detection, and particularly relates to a method for detecting PE micro-plastic in a lipid-containing organic matrix and application. Comprising the following steps: (1) mixing a PE standard substance with a solvent to prepare a standard working solution; sequentially cleaning and extracting a to-be-detected sample, and extracting PE in the to-be-detected sample to obtain a to-be-detected sample solution; and (2) evaporating the standard solution and the to-be-detected solution in the step (1) to remove the solvent, and then carrying out thermal cracking-gas chromatography-mass spectrometry detection analysis to complete the detection of the PE micro-plastic in the lipid-containing organic matrix. The detection method provided by the invention can be used for detecting the PE micro-plastic in the lipid-containing organic matrix, accurate qualitative and quantitative analysis of the PE micro-plastic in the lipid-containing organic matrix can be realized through a thermal cracking-gas chromatography-mass spectrometry combined detection method, and the method is stable and good in repeatability.