696 results about "Pyrolysis oil" patented technology

The invention belongs to the technical field of petroleum processing, and particularly relates to a catalyst and a preparation method and application thereof. The raw materials of the catalyst comprise a metal active component, a carrier and an auxiliary agent, the metal active component is sulfides of Mo and Ni elements, the carrier is spherical gamma-Al2O3 of 0.5-1 mm, and the auxiliary agent is P; the carrier is modified by using the metal active component and the auxiliary agent to serve as the catalyst. The high-activity catalyst is synthesized by adopting the strategy of changing the roasting temperature, adding the additive for doping modification and changing the molar ratio of metal active components, the additive is combined with surface aluminum atoms, the framework strength is enhanced, pore channel collapse caused by acid / water erosion is reduced, the water resistance and acid resistance of the catalyst are improved, and the catalytic reaction activity is further improved. The catalyst disclosed by the invention is accurate and controllable in structure, can be synthesized in batches, and can be applied to the co-catalytic hydrogenation process of biomass pyrolytic oil and / or a model compound thereof and petroleum distillate oil and / or VR.

The invention discloses a horizontal solid organic waste pyrolyzing furnace with a multi-stage shearing structure, belongs to the technical field of pyrolyzing furnaces, and aims to improve a traditional single straight-through furnace body structure and divide the whole pyrolyzing furnace into a pyrolyzing part and a preheating part. A shearing discharging column in a preheating part is used for carrying out continuous batch grinding smashing and preheating treatment on organic solid waste, the material granularity is reduced, the pyrolysis speed is increased, in the main pyrolysis link, a double-barrel furnace type structure composed of a pyrolysis barrel and a pyrolysis part is arranged, and under the rotation effect of multiple sets of shearing plates, the pyrolysis barrel and the pyrolysis part can be used for carrying out pyrolysis on the organic solid waste. Small-particle solid waste is in a continuous'upward turning-downward scattering 'multi-stage shearing state, materials are conveyed to the end part of the pyrolysis part along the inclined surface of the shearing plate in the upward turning process, and in the process, generated waste gas, carbon residues and pyrolysis oil are continuously separated through an exhaust passage, a residue discharge opening and an oil discharge hole respectively; and the heat-conducting property in the furnace is improved.

A pyrolysis method and system are provided that enhances the production of alkanes and minimizes the production of aromatics in the resulting pyrolysis oil. More particularly, the disclosed pyrolysis method and system may be configured to enhance the production of alkanes due to the use of certain pyrolysis catalysts and more intense pyrolysis conditions.

The invention discloses a method and equipment for recycling glass fibers in waste fan blades. The method comprises the following steps that S1, the fan blades are subjected to large-size cutting; s2, under the oxygen-free or oxygen-deficient condition, the cut fan blades are heated through electromagnetic heating for pyrolysis, pyrolysis gas, pyrolysis oil and pyrolysis solid residues are obtained through pyrolysis, and the pyrolysis gas and the pyrolysis oil serve as fuel to be recycled; s3, the pyrolysis solid residues are screened, glass fiber bundles are separated out, and the glass fiber bundles are opened and loosened; and S4, processing the loose glass fibers into a fiber disc for treating sewage or polluted air. According to the method and the equipment for recycling and reusing the glass fibers in the waste fan blades, the problems of low additional value, secondary pollution and the like of glass fiber recycling are solved through a fuel and glass fiber dual-recycling method, and the method and the equipment have the advantages of high resource utilization rate, environmental friendliness, economy and wide application prospect. And an innovative solution is provided for zero-waste treatment of the waste fan blades.

Embodiments of the present disclosure relate to a method and system for producing refined hydrocarbons from waste plastic pyrolysis oil. The method and system for producing refined hydrocarbons from waste plastic pyrolysis oil according to the embodiments of the present disclosure may minimize formation of an ammonium salt (NH4Cl) and may prevent an adhesion phenomenon of impurity particles in a reactor in a refining process of waste plastic pyrolysis oil containing impurities including chlorine and nitrogen. In addition, the method and system for producing refined hydrocarbons according to the embodiments of the present disclosure may have excellent refining efficiency and may implement a long-term operation of a process because deactivation of a catalyst used in the process is prevented, and may produce refined hydrocarbons having a low content of impurities and a low content of olefins from waste plastic pyrolysis oil.

The invention discloses a cyclone separation and moving particle bed coupled pulverized coal pyrolysis oil gas high-temperature dust removal system, and belongs to the technical field of coal clean utilization. The system comprises a cyclone separator, a fine filtration unit, a filter material cyclic regeneration unit and an intelligent control unit, the fine filtration unit comprises a particle bed, a particle bin is arranged at the top end of the particle bed, and a composite filter material layer is arranged on the particle bed; a dust-containing high-temperature oil gas pipeline and a pretreatment high-temperature oil gas pipeline are arranged at the top end of the cyclone separator, dust-containing high-temperature oil gas is introduced into the cyclone separator through the dust-containing high-temperature oil gas pipeline to be pretreated, and the pretreated dust-containing high-temperature oil gas is introduced into the particle bed through the pretreatment high-temperature oil gas pipeline to be finely filtered; and a coke breeze discharge pipe is arranged at the bottom of the cyclone separator. The invention is used for solving the technical problem of low gas-solid separation efficiency at high temperature caused by the adoption of a single filter material in the existing pulverized coal dust removal system.

The invention discloses waste plastic pyrolysis oil production equipment and a waste plastic pyrolysis oil production process capable of cooperatively controlling pyrolysis temperature through composite heating, and aims to solve the problems of inaccurate thermal field regulation and low energy circulation efficiency in the existing waste plastic pyrolysis oil production technology. The equipment comprises a raw material bin, an extruding machine, a grid type feeder, a preheating bin and a rotary reactor penetrating through a plastic melting furnace, a pyrolyzing furnace and a gasification furnace. An electric heating shoveling plate, a spiral weir plate and a stirring paddle are arranged on the inner wall of the rotary reactor; a pushing mechanism is arranged at the bottom of the preheating bin to continuously convey preheated materials; the flue gas circulating system recovers and reuses flue gas waste heat of all the furnace bodies, organic non-condensable gas separated by the oil gas recovery device is supplied to the combustor, and an energy closed loop is formed. Through the synergistic effect of multi-stage composite heating, dynamic power supply and a spiral flow guide structure, the problems that a traditional device is uneven in thermal field, high in energy consumption and poor in raw material adaptability are solved, and efficient waste plastic pyrolysis oil preparation is achieved.

The invention relates to the technical field of carbon black materials, and discloses special carbon black with high specific surface area and a preparation method thereof, and the special carbon black is prepared by pyrolysis and activation treatment of a precursor mixture, a catalyst and a template agent. The precursor mixture contains a biomass refined product, waste polymer pyrolysis oil and a copolymer template agent, and the performance is optimized through a rotating flow field high-temperature reactor and a microwave-assisted activation process. The carbon black has a hierarchical porous structure, the specific surface area reaches 2000-2500m < 2 > / g, the conductivity is improved by 1-2 orders of magnitude, and the chemical properties can be regulated and controlled through surface functionalization. The low-cost and sustainable production is realized, the mechanical strength, the conductivity and the adsorption performance are remarkably improved, and the requirements of the high-end field are met.

The present invention discloses a pyrolysis oil and gas cutting device and method, comprising a waste rubber pellet pyrolysis module, a pyrolysis oil and gas high-efficiency cutting module, a pyrolysis oil and gas condensation module, a Roots blower, a non-condensable gas pressure-stabilizing and conveying module, and a control module. By spraying cooling water and circulating non-condensable gas onto the high-temperature pyrolysis oil and gas, the present invention utilizes the vaporization of the cooling water to absorb a large amount of latent heat of phase change, fully condensing the high-temperature pyrolysis oil and gas. Furthermore, the generated water vapor and non-condensable gas reduce the partial pressure of low-flash-point components in the oil and gas, causing them to continuously migrate from the liquid phase to the gas phase. While ensuring that the oil product flash point meets standards, the minimum flash point cutting temperature required for condensation of high-flash-point oil is lowered, thereby increasing the yield of high-flash-point oil.

The invention relates to a mineral multi-stage separation and upgrading system, which belongs to the technical field of mineral separation and upgrading, and comprises a first separation bed body and a separation assembly arranged on the first separation bed body, the separation assembly comprises a plurality of air chambers which are continuously arranged on the lower side of the first separation bed body along the length direction of the first separation bed body; the multiple air distribution holes are vertically formed in the bed surface of the first separation bed body at equal intervals, and the multiple air valves are vertically and fixedly arranged at the bottom of the air chamber in a one-to-one correspondence mode. Through cooperative use of the air chamber and the air distribution holes in the first separation bed body, airflow is blown out from the air distribution holes, so that oil shale particles on the bed surface are in a fluidized state and move in the length direction of the bed surface, and the oil shale particles are separated from the air distribution holes; pulse airflow is output by the air valve and is blown out through the air distribution holes, so that the movement activity of the stacked and interlaced oil shale particles on the bed surface is enhanced, the oil shale is loose, fluidized and uniformly distributed, the separation of concentrate and gangue is realized, the separation effect of the oil shale particles is ensured, the grade of the oil shale is improved, and the energy consumption of a subsequent pyrolysis oil extraction process of the oil shale is reduced.

The invention relates to an oil-rich coal in-situ underground combustion and pyrolysis oil and gas recovery cooperative system based on high-temperature heat pipes. The system comprises a vertical shaft, a horizontal drill hole and a high-temperature heat pipe set. A high-temperature heat pipe set is arranged on the coal seam of the vertical shaft. A plurality of vertical wells are arranged with the vertical well as the center. Each vertical well is communicated with two parallel horizontal drill holes with different depths in the coal seam, the horizontal drill holes communicated with the adjacent vertical wells are not at the same depth of the coal seam, and four horizontal drill hole groups with different depths are arranged in the coal seam. Oxygen and carbon dioxide are mixed into oxygen-enriched gas, and combustion of coal in a certain horizontal drill hole is achieved. Flue gas generated by coal combustion is subjected to heat exchange through the high-temperature heat pipe set, and water vapor or carbon dioxide is heated. The high-temperature water vapor or carbon dioxide and the high-temperature flue gas after heat exchange enter the other two horizontal drill holes in the coal seam respectively, coal is pyrolyzed, and pyrolysis gas and tar are generated. According to the system, high-quality tar and high-calorific-value pyrolysis gas can be obtained, and only a small amount of energy needs to be provided from the outside.

The invention belongs to the field of wind power, and relates to a waste wind power blade pyrolysis system and method. The system comprises a pyrolysis device, a combustion device, a carbon removal device and a gas return pipe, wherein the internal space of the pyrolysis device can receive external third gas to pyrolyze the blades, output pyrolysis solids to the carbon removal device and output pyrolysis oil gas to the combustion device; the external space of the pyrolysis device heats the internal space by using the first gas, and outputs a second gas; the combustion device is used for receiving and combusting pyrolysis oil gas and air and outputting first gas to an external space; the carbon removal device is used for receiving the pyrolysis solid and the carbon removal gas, removing residual carbon of the pyrolysis solid and then outputting glass fibers to the outside; the gas return pipe is connected with the internal space, and part of the second gas serves as third gas to be fed into the internal space. The blades are heated in a radiation and convection mode, the amount of smoke fed into the pyrolysis device can be adjusted, the pyrolysis process is stable, fiber strength loss is avoided, and the energy utilization rate is increased.

Processes and systems for making recycle content hydrocarbons, including olefins, from recycled waste material. Recycle waste material may be pyrolyzed to form recycle content pyrolysis oil composition (r-pyoil), at least a portion of which may then be cracked to form a recycle content olefin composition (r-olefin). The r-olefin may then be further separated into product streams in a separation zone downstream of the cracker furnace. The presence of recycle content hydrocarbons may facilitate more efficient operation of one or more distillation columns in the separation zone, including the propylene fractionator.

Provided is a method for producing chemical products, including: a pyrolysis step of obtaining a first gas fraction, a pyrolysis oil, and a residual fraction by pyrolysis of a crushed material of a waste material including waste tires; a hydrogenolysis step of obtaining a second gas fraction, a light fraction with a boiling point of 350° C. or lower, and a heavy fraction with a boiling point higher than 350° C. by hydrogenolysis of a raw material oil containing at least a part of the pyrolysis oil; and a steam-cracking step of obtaining a chemical product by steam cracking of a steam-cracking raw material oil containing at least a part of the light fraction.

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.

The present application belongs to the technical field of cracking and dechlorination of chlorinated mixed plastics, and particularly relates to a preparation method of a red mud-based chlorinated mixed plastic pyrolysis composite dechlorination agent and a dechlorination method. First, the coffee grounds are converted into biochar through a hydrothermal carbonization reaction, and at the same time, the reducing gas released during the carbonization of the coffee grounds is used to reduce part of the hematite in the red mud to Fe3O4; then, through a high-temperature carbon thermal reaction, the residual hematite in the red mud is completely reduced to Fe3O4, and at the same time, the composite with the added CaO is realized, and finally, the composite dechlorination agent composed of the modified red mud, the biochar and the CaO is obtained. The dechlorination agent has a suitable specific surface area and an adjustable pore structure, can effectively fix HCl during the cracking of chlorinated mixed plastics, and can further obtain plastic pyrolysis oil with ultra-low chlorine content, and realize the high-value utilization of the red mud and coffee grounds solid waste.

The invention relates to the technical field of waste tire recovery, in particular to a method and a system for preparing biological aviation fuel by hydrogenation of waste tire pyrolysis oil, a pretreatment unit is used for performing multi-stage filtration and preheating treatment on the waste tire pyrolysis oil; the hydrogenation reaction unit is used for carrying out hydrogenation reaction and shallow cracking reaction on the pretreated waste tire pyrolysis oil; the separation and purification unit comprises a hot high-pressure separator, a dechlorination reactor, a cold high-pressure separator, a hot low-pressure separator and a cold low-pressure separator, and is used for carrying out dechlorination reaction and gas-oil-water separation treatment on a product of the shallow cracking reaction; the circulating hydrogen unit is used for providing mixed hydrogen for the system; and the fractionation unit is used for fractionating the product separated by the separation and purification unit to obtain the biological aviation fuel. According to the method, the waste tire pyrolysis oil is converted into the biological aviation fuel by adopting a series hydrogenation process, so that the problem of waste tire treatment is solved, and high-value utilization of resources is also realized.

The invention relates to the technical field of polymer waste treatment, and discloses a composite curing agent for curing chlorine and sulfur in polymer waste microwave thermal conversion and a preparation method and application thereof, and the method comprises the following steps: dissolving calcium nitrate and aluminum nitrate in deionized water to form an active component I solution; dissolving at least one of zinc nitrate, copper nitrate, ferric nitrate, manganese nitrate and cerium nitrate as an active component II in the active component I solution, adding citric acid into the formed mixed solution to form gel, and drying to obtain an active matter; and mixing the active matter, silicon carbide and bentonite, ball-milling, extruding and granulating, and calcining to obtain the composite curing agent. The composite curing agent disclosed by the invention can efficiently recover pyrolytic carbon, pyrolytic oil and pyrolytic gas while effectively and synergistically curing chlorine and sulfur pollution elements in situ; the curing rate of the chlorine / sulfur element can reach 80%, the recovery rate of the composite curing agent can reach 98%, and meanwhile, the raw material cost is low, and the problems of secondary pollution and equipment corrosion are avoided.

The invention provides a method for preparing pigment carbon black from waste tires, which solves the problems of low product quality and resource waste in traditional waste tire treatment by optimizing a synergistic process of thermal cracking, oxidation modification, pyrolysis oil carbonization and tail gas closed-loop utilization. The method comprises the following specific steps: crushing the waste tires into rubber powder, and performing thermal cracking to generate a carbon residue and oil-gas mixture; carrying out magnetic separation, grinding and oxidation treatment on the carbon residues to generate oxidized carbon black; fractionating and refining the pyrolysis oil, mixing with carbon black oil, and spraying into a carbon black reaction furnace to generate carbon black; and finally, mixing and granulating the two parts of carbon black to prepare the pigment carbon black. The specific surface area of the prepared pigment carbon black reaches 80-200 m < 2 > / g, the coloring strength is 80-120%, the ash content is smaller than or equal to 18%, and the pigment carbon black can be applied to color master batches and black plastic products by limiting thermal cracking conditions, oxidation conditions and the ratio of mixed oil. The tail gas is recycled after being dedusted and purified, so that efficient cyclic utilization of resources is realized.

The invention belongs to the technical field of petroleum processing, and particularly relates to a preparation method and application of a catalyst. The catalyst comprises a metal active component and a molecular sieve, a metal complex is added in situ in the synthesis process of the molecular sieve, anchoring of metal in a molecular sieve cage is realized by using a confinement effect in the molecular sieve cage, sub-nanometer approaching of a metal site and an acid site is realized, and the synergistic effect of the metal site and the acid site is improved; the catalytic cracking catalyst is used for synergistic catalytic cracking of biomass pyrolytic oil and petroleum distillate oil. The high-activity confinement type catalyst is synthesized, the synthesis time of the catalyst is greatly shortened by adding the metal complex while the HY molecular sieve is synthesized, the original crystal structure is kept, metal dispersion is promoted, and the catalytic reaction activity is improved. The catalyst provided by the invention is simple and controllable in active component loading capacity and size, and can be applied to the co-catalytic cracking process of biomass pyrolytic oil and / or a model compound thereof and petroleum distillate oil and / or VGO.

The present invention discloses a device and method for thermally converting and recycling glass fibers from waste wind turbine blades, which relates to the technical field of organic solid waste pyrolysis. It solves the technical problems of non - continuous feeding, high energy consumption and product application degradation in existing thermal recovery solutions. The key points of its technical solution are that the pyrolysis unit uses a feed hopper and a screw auger to achieve the thermal decomposition of waste wind turbine blades under continuous feeding, generating pyrolysis oil - gas and pyrolysis solids; the residual carbon oxidation unit further completely oxidizes the residual carbon in the pyrolysis solids to obtain inorganic solids, and collects and separates them through a pneumatic separator to recover clean glass fibers; the oil - collecting and gas - washing unit and the inorganic solid collection unit recover the waste heat of the products to reduce the energy consumption of the device, thereby realizing the complete separation of the resin matrix and glass fibers of waste wind turbine blades and recovering glass fibers, reducing the energy consumption of waste wind turbine blade thermal recovery, reducing secondary pollution and improving the product quality.

The invention discloses a method for preparing CNTs and hydrogen-rich gas through sludge pyrolysis, sludge is subjected to pyrolysis after being conditioned by ferric salt, pyrolysis gas is collected and reduced under the action of a Ni-Fe / NF catalyst, the Ni-Fe / NF catalyst is prepared and obtained, and the Ni-Fe / NF catalyst is obtained by dipping foamed nickel in a mixed solution containing nickel nitrate and ferric nitrate and reducing the foamed nickel. Under the action of the Ni-Fe / NF catalyst, on the basis of not changing pyrolysis conditions and not influencing preparation of pyrolytic carbon and pyrolytic oil by sludge pyrolysis, the pyrolysis gas is synchronously converted into the Ni-Fe / NF catalyst with higher value, so that the economic values of the sludge and the pyrolysis gas are improved, the influence on the environment is reduced, and the engineering application of the sludge pyrolysis technology is favorably realized.

A heat integration process and system for a chemical recycling facility is provided that can lower the carbon footprint and global warming potential of the facility. More particularly, one or more heat transfer media may be used to recover heat energy from a waste plastic pyrolysis effluent and redistribute the recovered heat energy throughout the chemical recycling facility. Furthermore, at least a portion of the pyrolysis oil produced by the pyrolysis process may be used to liquefy at least a portion of the waste plastics. Thus, the global warming potential of the chemical recycling facility may be optimized and lowered due to the heat integration process and system herein.

The present disclosure relates to a method and system for producing refined hydrocarbons from waste plastic pyrolysis oil. The method and system for producing refined hydrocarbons from waste plastic pyrolysis oil according to the present disclosure may minimize formation of an ammonium salt (NH4Cl) and may prevent an adhesion phenomenon of impurity particles in a reactor in a refining process of waste plastic pyrolysis oil containing impurities including chlorine and nitrogen. In addition, the method and system for producing refined hydrocarbons according to the present disclosure may have excellent refining efficiency and may implement a long-term operation of a process because deactivation of a catalyst used in the process is reduced or prevented, and may produce refined hydrocarbons having a low content of impurities and a low content of olefins from waste plastic pyrolysis oil.

A recycle content ethylene is fed to a reactor to make propionaldehyde having recycle content. The recycle ethylene feedstock is derived directly or indirectly from the cracking of recycle content pyrolysis oil. The cracking of the pyrolysis oil can be conducted in a gas furnace or a split furnace.

A composition having a recycle content value is obtained by reacting a recycle content feedstock to make a recycle content alpha olefin or by deducting from a recycle inventory a recycle content value applied to an alpha olefin composition. At least a portion of the recycle content value in the feedstock or in an allotment obtained by an alpha olefin manufacturer has its origin in recycled waste and / or pyrolysis of recycled waste and / or in thermal steam cracking of recycle content pyoil.

A composition having a recycle content value is obtained by reacting a recycle content feedstock to make a recycle content oxo alcohol or oxo plasticizer or by deducting from a recycle inventory a recycle content value applied to an oxo alcohol or oxo plasticizer composition. At least a portion of the recycle content value in the feedstock or in an allotment obtained by an oxo alcohol or oxo plasticizer manufacturer has its origin in recycled waste and / or pyrolysis of recycled waste and / or in thermal steam cracking of recycle content pyoil.

The invention discloses an artificial geothermal reservoir construction and development method based on oil shale reverse oxidation, and belongs to the technical field of resource exploitation, the method comprises the following steps: reservoir well construction: arranging an injection well, an exploitation well and a heat recovery well in a target layer section; an initial high-temperature environment is formed through manual heating, so that the oil shale is pyrolyzed to generate fixed carbon; injecting air to form an oxygen-enriched environment, initiating a fixed carbon oxidation self-heating reaction, and continuously pyrolyzing the oil shale; terrestrial heat is exploited through a circulating working medium, the air flow and components are dynamically controlled, and temperature control and safe operation are achieved; and finally reinjecting and sealing the carbon dioxide. The device can convert low-grade oil shale into clean geothermal energy, and has the advantages of energy conservation and environmental protection.

The application discloses a device and method for preparing green hydrogen through biomass pyrolysis and gasification, relates to the technical field of green hydrogen preparation, and solves the problems of blockage and corrosion caused by ash melting and slagging in the pure oxygen gasification process, and the problem of low energy utilization rate. The device for preparing green hydrogen through biomass pyrolysis and gasification comprises a pyrolysis reaction device, and the pyrolysis reaction device comprises a pyrolysis reaction tank connected with a high-temperature heat carrier conveying spiral, a biomass raw material storage bin, a biomass raw material conveying spiral and a pyrolysis solid-phase product conveying spiral. In the application, biomass raw materials are converted into biochar and pyrolysis oil gas through pyrolysis technology, the biomass ash is effectively cut, and problems such as blockage and corrosion caused by ash melting and slagging in the pure oxygen gasification process are effectively avoided; the high-temperature pyrolysis oil gas is directly subjected to pure oxygen gasification reaction through gasification technology, the sensible heat and latent heat in the pyrolysis oil gas are fully utilized, and the energy utilization rate is high.

The invention relates to the technical field of waste tire pyrolysis oil treatment, in particular to a method and system for series hydrotreatment of waste tire pyrolysis oil, and the method comprises the following steps: S1, mixing pretreated waste tire pyrolysis oil with mixed hydrogen, and then carrying out primary preheating and low-temperature hydrotreatment; s2, performing hydrofining reaction and shallow cracking reaction on the low-temperature hydrogenation effluent; s3, performing thermal high-pressure separation treatment on the cracking reaction product to obtain a first gas phase and a first liquid phase; s4, condensing the first gas phase, performing cold high-pressure separation treatment to obtain a second gas phase and a second liquid phase, and performing cold low-pressure separation treatment on the second liquid phase to collect an oil phase; the first liquid phase is subjected to thermal low-pressure separation treatment to obtain a third gas phase and a third liquid phase, and the third gas phase is condensed and then subjected to cold low-pressure separation treatment to collect an oil phase; and S5, mixing the third liquid phase and the oil phase, and carrying out reaction product fractionation treatment. According to the technical scheme, deep processing of the waste tire pyrolysis oil is achieved, energy consumption of the device is reduced, and the continuous operation period of the device is prolonged.