Pyrolysis Reactors for Tire Recycling

High-temperature pyrolysis of waste tires to produce oil and carbon black in a compact, efficient system. The system uses a vertical reactor with a nozzle to inject rubber powder into the reactor. A fly ash filter separates carbon black from the pyrolysis gas. An absorption tower removes sulfur from the gas before combustion in a blast furnace to provide heat for the reactor. The system is self-sufficient with the blast furnace providing heat and the gas booster evacuating the reactor. The rubber powder injection allows uniform dispersion and high initial velocity for better pyrolysis.

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A large-scale, efficient and environmentally friendly method for producing fuel oil and carbon black from waste tires. The process involves breaking the tires into small particles, then cracking the tire particles at high temperatures to produce fuel oil and carbon black. The cracking is done at negative pressure to prevent leaks and emissions. The fuel oil is condensed and dehydrated to remove water. The method provides high productivity and improved safety compared to existing tire recycling processes.

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Waste tire processing device that reduces energy consumption in pyrolysis by using the pyrolysis gas to heat the tires instead of external heat sources. The device has a reactor, screw conveyor, and gas separation tank. Crushed tires are loaded into the reactor and stirred by the screw. Gas is ignited in a chamber around the reactor. The heat from burning gas helps pyrolyze the tires. The pyrolysis gas is separated and returned to the chamber to assist heating. This recycles the waste tire heat to reduce external energy needs.

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Waste tire pyrolysis device for recycling pyrolysis gas that improves the yield of pyrolysis oil and gas compared to indirect heating methods. The device has a waste tire silo, molten salt pyrolysis furnace, pyrolysis gas condenser, molten salt heating furnace, and pyrolysis gas heat exchanger. The molten salt pyrolysis furnace and heating furnace are connected in a closed loop. Waste tires feed into the pyrolysis furnace, and the molten salt contacts and heats the tires directly. The pyrolysis gas exits the furnace and condenses in the condenser to separate the pyrolysis oil. The pyrolysis gas then passes through the heat exchanger to preheat the molten salt before entering the pyrolysis furnace again. This allows efficient recycl

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System for continuous pyrolysis of organic materials like used tires to produce recovered carbon black. The system has a rotating tubular reactor, quenching unit, and burner unit. The reactor has multiple heating gas outlet valves along its length to control heat supply to different zones. This allows optimized pyrolysis conditions. The reactor also has a tube cleaning device to prevent clogging by transporting deposited solids from the pyrolysis gas outlet back into the reactor.

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Integrated processing of rubber waste like tires to extract valuable products, generate energy, and reduce environmental impact. The process involves pyrolysis at 550-700°C to release volatile compounds. The gaseous pyrolysis products are cooled, separated into a methane-hydrogen mixture and heavy hydrocarbons C5-C12. The heavy hydrocarbons are distilled to extract valuable components. The methane-hydrogen mixture is used to maintain pyrolysis temperature and generate energy. The solid residue is gasified with CO2 to make sorbents and capture CO2 for recycling. The CO is reformed into H2 and CO2.

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Pyolysis of waste rubber material, such as tyre waste, into a pyrolytic oil. The process involves operating at least a pyrolysis stage of the pyrolysis reactor at an operating temperature at or above a temperature at which pyrolysis of both the polyolefin and the rubber containing material commences and up to about 600°C under a substantially inert atmosphere.

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Vertical high-efficiency cascade controllable pyrolysis gasification device for waste tires that improves pyrolysis efficiency and reduces environmental pollution compared to existing methods. The device uses a vertical rotating cylinder to pyrolyze tires. The cylinder has a feeding system for introducing tires, a rotating shaft inside, and a gas extraction pipe. The shaft has channels for circulating hot gas. This allows continuous pyrolysis at high temperatures to maximize oil yield. The device also has a carbon black discharge system. The vertical design, internal gas circulation, and controlled feeding provide higher efficiency compared to horizontal systems.

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A waste tire pyrolysis process with integrated shearing, uniformization, pyrolysis, and solid pulverization steps to efficiently treat waste tires without secondary pollution. The process involves crushing tires into smaller pieces using multiple shearing stages, then feeding them into a sealed silo for uniform distribution. The uniform material is pyrolyzed at high temperatures without contact with hot components using radiation heating. Finally, the pyrolyzed solid is pulverized as it's discharged. This integrated process avoids issues like coking, blocking, dust, and secondary pollution compared to conventional pyrolysis systems.

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A process for recycling waste tires into pyrolysis oil and gas. The process involves pyrolyzing waste tires at 350-400°C using a vertical tower reactor with internal heating and stirring. The pyrolysis gas is combusted to generate high-temperature flue gas. A steam jet pump extracts exhaust gas from the combustion kiln and mixes it with steam to reduce the pressure. This mixed fluid is compressed and discharged back to the kiln. The steam jet pump allows efficient utilization of the high-temperature flue gas as a heat source for pyrolysis, condensing pyrolysis oil into liquid fuel, and recycling pyrolysis gas into fuel.

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A system and method for processing tires that improves efficiency and reduces costs compared to existing methods. The system involves spinning the tires to extract steel wire, crushing the remaining tire, magnetically separating the iron, using flue gas to transport the rubber particles, cycloning the mixture, and pyrolyzing the rubber in a stirred reactor with molten salt. The spinning, magnetic separation, and flue gas transport steps allow recycling the steel and avoiding iron contamination in pyrolysis. The molten salt provides indirect heating and high heat capacity to improve pyrolysis efficiency. The stirring and cycloning steps prevent agglomeration and enable homogeneous pyrolysis.

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Micro-negative pressure pyrolysis method for recycling waste tires that improves the efficiency and mechanization of tire thermal cracking. The method involves crushing the tires in two stages, injecting the crushed material into a sealed reactor with a microporous plate, heating it under low pressure to 120°C, then increasing the heating rate and pressure to 450°C, and pyrolyzing it at reduced pressure while the solid phase remains on the microporous plate. This allows consistent tire crushing, pyrolysis, and material collection without steel wire stripping.

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Device for modifying pyrolysis oil and charcoal from waste tires to improve their quality and market value. The device consists of a two-stage process with a pyrolysis furnace followed by a gasifier. The pyrolysis converts the tires into pyrolysis gas and charcoal. The hot pyrolysis gas and charcoal then enter the gasifier where they are further processed. The gasifier has separate zones for gasification, modification, and ash accumulation. This allows further cracking of the gas to remove heavy tars, and separation of remaining organic matter from the charcoal. The modified gas is combusted, and the cleaner charcoal is recovered.

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Integrated device and method for efficiently pyrolyzing and activating waste tires in a two-stage process. The device has a sealed feeding section, a pyrolysis section, a gas-solid conveying channel, and an activation section. The pyrolysis section breaks down the tires into pyrolysis products like oil and gas. The gas-solid conveying channel transfers the pyrolysis gas to the activation section where it reacts with the remaining solid tire pieces to produce further products. The sealed feeding section prevents oxygen from entering during pyrolysis. This two-stage process improves efficiency by maximizing pyrolysis in the first stage and then further converting the remaining solids in the second stage.

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Preventing clogging in a pyrolytic syngas system integrated into a pyrolysis system to improve reliability and safety. The clogging prevention involves continuously removing and recycling a portion of the solid carbonaceous material generated during tire pyrolysis to prevent buildup in the exhaust channel that can cause clogs and pressure buildup. This recycled material is mixed with the incoming feed to dilute and disperse any remaining solid particles in the pyrolysis reactor, reducing the likelihood of clogs. The system also has a decanter to separate and remove water from the light oil cut, preventing corrosion and clogs in downstream components.

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Device and method for efficient and high-value utilization of waste tires through pyrolysis. The pyrolysis process involves heating waste tires without steel wires using modified pyrolysis carbon as a thermosetting carrier. This avoids the need for external heat sources like gas or oil. The modified carbon is produced by incompletely combusting the pyrolysis gas. The modified carbon is then used as the heating media to rapidly pyrolyze the tires. This provides a self-sustaining and efficient pyrolysis process that recovers maximum value from waste tires.

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A low-temperature pyrolysis method for recycling waste tires that produces pyrolysis oil, gas, and carbon black. The method involves pyrolyzing tires at lower temperatures in a nitrogen atmosphere. It allows rapid pyrolysis of tires at lower temperatures compared to conventional high-temperature methods. The low-temperature pyrolysis enables continuous operation and reduces energy consumption. It also increases pyrolysis oil yield and decreases gas yield compared to high-temperature pyrolysis.

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Rapid pyrolysis of waste tires using a device with an internally installed screw and externally installed heater to promote agitation and heat transfer. The device has a sample supply, reaction chamber with screw, heater, carbon black recovery, cyclone, condenser, and dust collector. The screw transports tires, heating by heater and chamber walls. This provides simultaneous internal and external heating for efficient pyrolysis compared to just external heating.

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Continuous, efficient and green method to convert waste tires into superheated steam. The method involves pyrolyzing the tires in stages at controlled temperatures to produce pyrolysis oil, carbon black and gas. The pyrolysis devices are connected in sequence. The first device pyrolyzes the tires at a low temperature to yield oil and carbon black. The second device further pyrolyzes the oil at a higher temperature to produce gas. This two-stage pyrolysis allows selective conversion of the tire components into valuable products. The resulting superheated steam is generated by passing the gas through a reformer device heated by combustion of the carbon black. The method provides a closed-loop conversion process that avoids environmental issues like dioxin generation and coking.

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Segmented temperature-controlled continuous pyrolysis reactor for waste tires that allows precise temperature control, high efficiency, and continuous operation compared to traditional waste tire pyrolysis systems. The reactor has a sectioned rotary kiln with adjustable heaters, thermometers, and feeders. This allows dividing the kiln into zones for preheating, cracking, and heat preservation. The segmented design enables accurate temperature control in each zone for optimal pyrolysis. It also facilitates continuous feeding without blocking or leaks.

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Automated, continuous pyrolysis installation for recycling end-of-life car tires into valuable products like oil, metal, and carbon. The installation has a hopper to feed tire skeins to a shredder, then a thermal reactor with a separating valve to extract pyrolysis oil. A fuel pump and burner inject additional heat through a hot air heater. The closed-loop system allows continuous, automated tire processing without oxygen for cleaner recycling compared to open systems.

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An internal heating continuous pyrolysis process for converting waste materials like tires, plastics, straws, and oil into fuel oil, carbon black, fuel gas, and chemical products. The pyrolysis is done in a countercurrent fractionator with sections for preheating, pyrolysis, and cooling. The fractionator is connected to systems for raw material processing, oil recovery, combustion heat exchange, and tailings separation. This allows efficient internal heating and recycling of products.

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System for cooperative treatment of municipal waste and waste tires that reduces pollution and improves economic benefits compared to separate treatment. The system involves co-processing municipal waste and waste tires using pyrolysis. It has separate pretreatment devices for waste and tires, followed by a shared pyrolysis section with two radiant tubes. The waste pyrolysis generates oil and gas which is sent to the boiler to generate steam. The tire pyrolysis also generates oil and gas which is sent to the shared pyrolysis section to provide the radiant tube heat. The steam from the boiler goes to a turbine to generate electricity. This allows utilizing the tire pyrolysis heat for waste pyrolysis and the waste pyrolysis oil/gas for boiler fuel, thus enhancing overall efficiency and resource utilization.

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Continuous pyrolysis system for recycling waste plastics and tires without batch feeding. The system has enclosed pyrolysis tubes where feedstock is continuously transported, pyrolyzed, and products removed without interruption. The tubes are heated by immersion in a heat exchanger or induction coils. It prevents contamination by confining feedstock and products inside the tubes. The system enables continuous feeding of waste to increase pyrolysis rates and avoids the need for batch feeding, purging, and residue removal steps.

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A system and method for efficient and predictable pyrolysis of carbon-containing materials like rubber to create valuable products at commercial scale. The system involves multiple crucibles that can be heated, cooled, transferred, and preheated simultaneously. This allows parallel processing of multiple batches at different stages of the pyrolysis process, increasing overall throughput and efficiency.

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Continuous pyrolysis device for waste passenger car tires that allows efficient and scalable processing of whole tires. The device consists of a pyrolysis tank, furnace, chambers, slide, and cooling sections. Tires are loaded into the open pyrolysis tank on a slide. The slide moves the tires into the furnace for pyrolysis. Flue gas from a separate furnace heats the tires externally. The furnace gas goes to a chamber sealed with water vapor. The heated chamber gas cools and separates into pyrolysis oil and gas. The oil and gas are further cooled before discharge. This allows continuous, staged pyrolysis of whole tires without pre-processing or carbon black blocking.

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Batch pyrolysis system for efficiently converting scrap tires and other organic waste into high-value pyrolysis products like oil, carbon, and gas. The system uses a batch pyrolysis process instead of continuous pyrolysis to extract higher value pyrolysis products. Tires or waste are loaded into carts, pyrolyzed in batches, and unloaded. Multiple furnaces are offset-cycled for continuous input/output. The system includes condenser units to fractionally condense oils, a control unit, and fan circulation in furnaces. This allows optimizing pyrolysis conditions for different waste types and extracting maximum value from scrap tires.

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Rapid pyrolysis of waste tires using a stirring and heating screw device to efficiently decompose tires into valuable products like carbon black and oil. The device has a sample supply, screw reactor, electric heater, carbon black recovery, cyclone, condenser, and dust collector. The stirring screw has an internal heater to heat the tires during transport. This improves heat transfer compared to external heating. The stirring blades promote even pyrolysis as tires aren't stacked like with a regular screw.

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Recycling waste to produce alternative fuels like diesel and gas by pyrolysis. The method involves heating waste like tires, plastic, wood, and agricultural residue in a sealed reactor without oxygen. This decomposes the waste into a gas mixture, condensable liquid, and solid carbon residue. The condensate is separated to obtain the liquid fuel component. The pyrolysis conditions can be optimized for specific waste types to maximize fuel yield.

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Pyrolysis system for recycling waste tires into usable products like oil, gas, and carbon. The system has a vertical reactor with multiple layers of radiant tubes arranged side by side. Stirring rods between the tubes loosen materials and prevent clogging. Oil and gas pipes exit each layer. The reactor has a spray tower to cool and separate the pyrolysis products. It uses regenerative radiant tubes as heat sources. The system is designed for efficient tire pyrolysis, with features like insulation, staggered tube layout, and multiple oil/gas exits per layer.

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Staged temperature controlled tire cracking process to efficiently convert waste tires into useful products like carbon black and oil. The process involves staging the cracking temperatures in two separate chambers. The tires are initially cracked at a lower temperature in the first chamber, then further cracked at a slightly higher temperature in the second chamber to minimize secondary cracking and reduce undesirable emissions. This two-step process is done using specialized equipment with inclined chambers, spiral belts, hot air outlets, and rotary valves.

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Endothermic reaction apparatus for efficient endothermic processes like pyrolysis with reduced energy consumption. The apparatus has multiple fluidized bed zones for combustion and pyrolysis. The combustion zone heats the particles, and the pyrolysis zone uses the hot particles to pyrolyze feed material. The combustion zone recycles some gas product back as fuel, forming a closed loop. This reduces external fuel needs. The apparatus also has features like injectors to prevent heat loss and mass transfer devices to move particles between beds.

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Self-dusting waste tire pyrolysis and cracking system for efficiently converting waste tires into clean combustible gas. The system uses a regenerative radiant tube heating design in the reactor chambers to pyrolyze and crack the tires. The radiant tubes disperse the tires for even pyrolysis and cracking. The system also has a particle bed dust remover, filter, and gas scrubber to prevent dust escaping. This allows clean gas production from tires without dust emissions.

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A high temperature pyrolysis reactor and system for producing oil and carbon black from waste tires. The reactor has a vertical tower with powder nozzles, mixers, and reaction tubes. The system includes crushing, transport, filtration, cooling, separation, and recovery steps. The tires are crushed, powdered, and fed into the reactor. The pyrolysis produces oil and carbon black. The oil and gas are cooled and separated. The carbon black is filtered. The oil is further processed. The exhaust gases are detoxified and recycled as fuel.

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Low-temperature catalytic pyrolysis of waste tires to produce fuel oil and carbon black. The process involves catalytic pyrolysis at lower temperatures compared to conventional tire pyrolysis. This reduces activation energy and increases reaction rates. It improves oil quality and yield compared to high-temperature pyrolysis. The lower temperature also reduces harmful gas emissions. The catalyst accelerates the pyrolysis reactions to convert the tire into useful products.

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A process to produce syngas from pyrolytic carbon black generated during waste tire pyrolysis. The process involves two chambers connected by a steam heating device. In the first chamber, the carbon black combusts in incomplete combustion with excess air. In the second chamber, the combusted carbon black gasifies in a reducing environment. The steam heating device preheats the gasification chamber using the hot flue gas from the combustion chamber. This two-step process improves syngas yield compared to direct gasification of the pyrolytic carbon black.

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Pyrolysis system and process for recycling solid waste like tires or roofing pellets into useful products. The system uses multiple reactors arranged in series with the outlet of one reactor feeding into the inlet of the next reactor. This allows controlled temperature progression as the material moves through the reactors. Gas and oil are removed from each reactor separately to prevent contamination of the carbon black. The reactors are horizontally arranged with the gas outlets positioned closer to the discharge end than the inlet end. This enables sequential gas removal at progressively higher temperatures. The solid fuel is preheated before entering the first reactor. The process involves feeding solid waste into the first reactor, pyrolyzing it to produce gases and carbon black, removing the solids, then pyrolyzing the solids further to produce more gases. The gases are condensed separately in multiple stages to

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A method and apparatus for pyrolysis using a bubbling fluidized bed boiler. The method involves circulating the solid bed material from the boiler through a pyrolyzer to maintain pyrolysis conditions. The pyrolyzer has an inlet section to feed hot bed material from the boiler, a pyrolysis section with a pyrolysis zone, and an outlet section to discharge the pyrolyzed material back to the boiler. The pyrolyzer is fluidized with gas below the bed so it flows horizontally through the pyrolyzer in a direction transverse to the gas flow. This circulates the bed at pyrolysis temperatures to optimize conversion.

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A rapid tire pyrolysis system to maximize value from used tires and improve pyrolysis efficiency. The system has a multi-layer stack of regenerative radiant tubes in the pyrolysis reactor. The tubes have gas inlets and outlets. This allows precise temperature control by regulating gas flow. The rubber particles flow through the stack with uniform temperature zones for preheating, rapid pyrolysis, and complete pyrolysis. The stack also enables rapid gas extraction from the reactor. A magnetic separator removes steel wire before pyrolysis. A shredder pulverizes the tires. A hoist returns carbon black. Extraction devices remove pyrolysis gas. This improves pyrolysis oil yield, particle size, and carbon black quality.

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Continuous thermal cracking method for recycling waste tires that addresses the issues of low efficiency, poor safety, unstable product quality, environmental pollution, and complex oil handling in traditional tire recycling. The new method involves continuously feeding waste tires into a specialized thermal cracking machine that uses high temperatures and controlled reactions to break down the tires into valuable products like carbon black, steel, and oil. The continuous process improves efficiency, stability, and safety compared to batch processes. The oil is extracted and treated separately for further processing. The specialized thermal cracking machine also has better environmental controls and reduces pollution compared to traditional kilns.

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Continuous low temperature negative pressure cracking process for waste tires to convert them into valuable products like carbon, oil, and steel. The process involves breaking the tires, separating the steel, crushing the broken pieces further, cracking them in a furnace at low temperature and negative pressure to pyrolyze the rubber, recovering the carbon residue, and separating the oil and gas products. The low temperature and negative pressure cracking prevents burning and reduces pollution compared to traditional tire recycling methods.

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A compact and efficient waste rubber cracking system that uses electric heating instead of a boiler to pyrolyze waste tires into carbon black and oil. The system has a raw material pretreatment unit, feed unit, pyrolysis reactor with electric heating coil, carbon black collection unit, oil condensation unit, oil refining unit, gas purification unit, and waste water treatment unit. It reduces equipment, area, and energy consumption compared to traditional systems. The electric heating eliminates the need for a boiler and flue gas system. The system also recycles gas and water internally.

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Pyrolysis device and method for producing low ash, low sulfur carbon black from waste tires. The device has a multi-stage cracking chamber with separate zones for initial, intermediate, and final cracking. The chambers are arranged in series with inlets and outlets between them. The initial cracking zone has an upper section with a raw material inlet and a lower section for cracked carbon black outlet. The middle and final cracking zones also have inlets and outlets. This staged cracking design improves heat transfer and efficiency compared to single zone cracking. It allows optimized temperatures for each stage of tire pyrolysis to yield low ash, low sulfur carbon black.

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A method and apparatus for producing synthetic fuel from waste tires that uses pyrolysis under slight positive pressure to improve safety, efficiency, and environmental performance. The method involves heating worn tires in a sealed reactor with slight overpressure, then pyrolyzing them with internal combustion of non-condensed gases and liquid fuel. Afterburning chambers capture and combust excess gases. This allows using internal heat for insulation and prevents external air ingress. A water seal isolates the reactor. Loading/unloading is by gravity instead of conveyors. The apparatus has separate chambers for external heating, condensation, fuel storage, and afterburning.

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A system for processing tires that recovers valuable resources from tires while minimizing environmental impact. The system involves a series of units like a wire drawing machine, pulverizer, magnetic separator, pyrolysis reactor, slagging screw, forming device, and calcium carbide furnace. The system efficiently recovers steel from the wire in the tire, breaks the rubber into particles, separates iron, pyrolyzes the rubber, collects gases and oils, and forms pellets for use. This allows recovering steel, carbon black, pyrolysis oil, and gas from tires while reducing pollution and waste compared to incineration.

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Method and installation for high-temperature pyrolysis of organic waste like tires to produce energy from substances containing carbon without forming heavy fractions and dioxins. The pyrolysis is done at temperatures up to 2000°C using a catalytic steam conversion process to gasify the waste. The pyrolysis reactor is preheated by mixing combustible gas, air, oxygen-hydrogen, and water vapor. The reactor has a feed device for raw material, an auger to remove solid residue, and connections to hydrogen cells and a steam generator for preheating. This allows autonomous thermal maintenance of the pyrolysis process without external heating.

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A continuous process for converting waste tires and plastics into gasoline, diesel, and carbon black using thermal cracking and catalytic cracking. The waste material is first thermally cracked at medium temperatures to produce smaller hydrocarbons. The vapors are desulfurized, denitrified, and dechlorinated. The uncracked solid fraction is pyrolyzed at higher temperatures to make carbon black. The gases from both cracking stages are further catalytically cracked to make fuels. The continuous feeding and stirring prevents blockages.

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A method to pyrolyze waste rubber without coking and pollution during the process. The method involves crushing the rubber before pyrolysis to increase surface area for better heat transfer. Catalyst and a heat conduction medium are added to reduce activation energy, reaction temperature, and carbon formation. The catalyst and rubber are mixed well to improve heat transfer. This allows faster pyrolysis and reduces secondary reactions that cause coking.

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Pyrolysis and cracking system for efficiently converting waste tires into clean gases. The system uses a reactor with a pyrolysis chamber and a cracking chamber separated by an insulated wall. The pyrolysis chamber has a bed of particles to remove dust from pyrolysis products. The pyrolysis gas enters the cracking chamber for further reaction. This two-step process reduces dust pressure and allows efficient cracking of pyrolysis oils. A ceramic filter purifies the pyrolysis gas before storage. The reactor also has regenerative radiant tubes, air supply, and a waste heat boiler for energy recovery.

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Two-stage pyrolysis process for treating waste tires that reduces sulfur content in the resulting oil compared to single-stage pyrolysis. The process involves using an auger reactor before a fluidized bed reactor to treat tires. This allows extracting an oil with lower sulfur from the auger reactor, then further treating it in the fluidized bed reactor. Gas recirculation between the reactors aids pyrolysis. The auger reactor temperature is adjusted to reduce tire sulfur before feeding it to the fluidized bed. This two-stage process significantly reduces sulfur in the final oil compared to single-stage pyrolysis.

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