Pyrolysis Technique for Tire Breakdown

A method for extracting valuable compounds from feedstocks like plastics, tires, and waste by using microwave plasma and pyrolysis. The method involves heating the feedstock in a pyrolysis chamber using microwaves to convert it into pyrolysis products. These products are then exposed to a microwave plasma to break down and extract specific target compounds like olefins. The plasma temperature is precisely controlled using microwave pulse shaping to recover the desired compounds.

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Pyrolysis method and reactor for recovering compounds from tire materials using microwave radiation. The method involves feeding tire material into a chamber and exposing it to controlled microwave radiation at frequencies between 300 MHz and 2.5 GHz. The radiation power can be varied to continuously change the temperature within the chamber over a range that includes the decomposition temperature of the target compounds. This allows selective extraction of oils, hydrocarbons, monomers, plasticizers, etc. from tire materials by varying the microwave power and temperature. The reactor has multiple temperature zones for pyrolyzing different compounds simultaneously.

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Pyrolysis process for treating large unshredded materials like medical waste and tires using a reactor integrated with a sand combustor and flue gas combustor. The reactor has a loading point for introducing the large particles, a pyrolysis zone, and a cooler section. The sand combustor provides hot sand to heat the reactor. The flue gas combustor burns the sand combustion off-gases to recover heat. This allows treating large particles without shredding. The integrated combustors provide efficient sand heating and flue gas circulation. The reactor design also provides good sealing to prevent oxygen infiltration.

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Continuous infrared cracking of waste tires to convert them into valuable products like oil, gas, and carbon black. The process uses a vertical furnace with infrared heating to crack the suspended tire material without coking. Air blowing keeps the tires in suspension. A closed loop recovers cracked gas, removes impurities, and separates oil, gas, and carbon black. The furnace design, closed loop, and infrared heating provide efficient, pollution-free tire recycling.

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Pyrolysis system for recycling waste materials like tires, plastics, and wood. The system has a screw-fed pyrolysis chamber for breaking down the waste into useful products. The screw moves the material through the chamber while pyrolyzing. The pyrolysis system can be combined with a pre-processing module that mechanically stresses the waste before pyrolysis to further break it down. After pyrolysis, the products can be cooled and stored. This allows extracting gas and vapors later instead of during processing.

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Pyrolysis method for recycling tire waste into gases, liquids, and solids using lasers to achieve high temperatures for breaking down the material. The process involves focusing lasers on small areas of the waste to create localized heating and avoid using heat carriers. The gases are drawn off during the reaction and condensed to separate the products. This allows simpler equipment compared to conventional pyrolysis reactors. The laser method enables precise temperature control and faster, more efficient conversion compared to heating large volumes of material.

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Continuous pyrolysis system for whole waste tires that allows continuous processing without pre-shredding the tires. The system uses a ring configuration with a preheating box, thermal cracking reactor, and condensing system. Tires are fed into the preheating box, heated, and then moved into the cracking reactor. Hot air from the cracking reactor is used to preheat incoming tires. The cracking reactor has a screw feeder, support bin, and heater with a combustion furnace. The condensing system separates heavy and light oil products from the cracking process. This closed-loop, ring-shaped design enables continuous processing of whole tires without the need for pre-shredding.

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Recycling end-of-life tires using microwave pyrolysis to produce valuable oil and gas products. The process involves pyrolyzing tires in a microwave reactor, then fractionating the vapors before condensation. This allows selective separation of the gases, liquids, and solids. By adjusting the microwave power level and heating rate, oil with low sulfur content and high distillable fraction can be obtained.

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A pyrolysis plant for efficiently converting hydrocarbon waste like worn tires into usable products. The plant has a sealed chamber connected to a refrigerator with a water jacket on the bottom. The refrigerator contains a coiled separator and a thermal electric heater. Above the heater is a cassette for loading the raw material. This integrated heat conduction design allows efficient pyrolysis through both radiation and convection. The water jacket captures heat from the pyrolysis gases and transfers it to the refrigerator's cooling liquid. The chilled liquid then absorbs heat from the raw material cassette, preheating it before pyrolysis. This integrated heat exchange improves pyrolysis efficiency by maximizing heat transfer.

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Economical, safe, and environmentally friendly method for recycling worn tires through pyrolysis by dividing tires into sections and induction heating them in a column. The divided tire sections are heated to pyrolyze volatile components, leaving solid residue. This allows higher temperatures and faster pyrolysis compared to whole tires. Induction heating avoids issues like gas entrapment and pyrolysis product release during loading/unloading. The divided tire sections are also more compact for transportation. The method uses a column with an inductor connected to a high-frequency generator to heat the sections. The divided sections are supplied, heated, cooled, and discharged from the column. This allows efficient, controlled pyrolysis of separated tire sections instead of whole tires.

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Pyrolysis apparatus and method for flexible and efficient treatment of various waste materials like scrap tires that contain different types of pyrolyzable materials at different temperatures. The apparatus has multiple independently operated reaction chambers of decreasing size. Waste is first pyrolyzed in the largest chamber, then the partially pyrolyzed material goes to the next smaller chamber for final pyrolysis. This allows treating different materials at their optimal temperatures. Gases from the final chamber can be directed to different destinations. This enables efficient pyrolysis, recycling of valuable products, and handling of non-pyrolyzable residues.

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Pyrolysis apparatus and method for flexible treatment of heterogeneous waste materials like tires that contain different types of pyrolyzable components. The apparatus has multiple independently operable reaction chambers of decreasing size. This allows staged pyrolysis of the feed at different temperatures to optimize conversion and product quality. The gaseous pyrolysis products from the later chamber can be directed to different destinations. This flexible, multi-chamber setup enables customized pyrolysis conditions for different materials, like pyrolyzing tires at lower temps first to avoid carbonization of the rubber, then completing pyrolysis of the residue.

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A method for treating waste tires to extract valuable materials like steel and carbon black while minimizing pollution. The method involves feeding tires into a reactor with zones at different temperatures for thermal decomposition. The gaseous products are condensed and the solid products separated. The reactor has a sealing valve and sensors to optimize conditions for cracking the tires. The solid products are collected in separate containers. This allows recovering steel, carbon black, and avoiding polluting byproducts compared to traditional tire incineration.

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Pyrolysis system and method for processing whole rubber tires into energy resources and recyclable steel wire without shredding. The system involves transporting whole tires into a reaction chamber where they are pyrolyzed to decompose the rubber into fuel oil, methane gas, and carbon black, while separating the steel wire. This allows converting the entire tire into usable resources rather than shredding first. The compressed tire size is about 1:3 to maximize steel recycling.

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A continuous batch pyrolysis system for recycling waste tires into valuable products. The system uses a scalable batch reactor design to process tires in batches rather than continuously. This allows higher quality pyrolysis products by eliminating oxygen leaks. The reactor has internal heat conductors to facilitate efficient and controlled heat transfer. This optimizes the pyrolysis conditions for high quality pyrolysis oil, gas, and char. The batch approach also enables higher throughput compared to continuous pyrolysis. The system extracts pyrolysis products from the gases and solids after each batch.

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Recovering valuable carbon and hydrocarbon products from discarded tires through pyrolysis in a reactor that directly heats the tires instead of indirectly heating the reactor. This allows better control over the pyrolysis process by enabling rapid heating, cooling, and steam addition to the tires during reaction. The direct heating also reduces energy requirements compared to indirect heating. The tires are batch-processed in the reactor instead of continuously fed, allowing more control over pyrolysis conditions. This enables optimization of the process based on specific tire compositions to produce desired final products like carbon black, oils, and gases.

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Pyrolysis process for recycling hydrocarbon-containing used materials like tires into useful products like oil, gas, and carbon black. The process is carried out in a vacuum to prevent contamination. The used material is loaded into a reactor, vacuum pumped to remove oxygen, and heated to 435-500°C to pyrolyze. The exothermic reaction is self-sustaining without external heating. The gaseous hydrocarbons produced are used to heat the reactor, minimizing fuel requirements. The solid residue is unloaded and contains carbon black powder and steel wires.

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Reclaiming volatile products and non-volatile residue from pyrolysis of polymeric materials like rubber tires in an environmentally friendly manner. The process involves enclosing the material in a reactor, establishing an oxygen-deficient atmosphere, and simultaneously compressing and heating the material to pyrolyze it. This prevents oxygen from inhibiting the reaction and allows complete conversion. The volatile products are removed while the residue is isolated. The reactor recycles some pyrolysis gases for energy. This closed-loop, oxygen-starved pyrolysis avoids atmospheric pollution.

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A tire pyrolysis system to efficiently and effectively recycle scrap tires into carbon black, steel, oil, and gas. The system uses a rotary kiln divided into three zones with decreasing temperatures. The supply end has high temp, the middle zone has medium temp, and the discharge end has low temp. This zoned heating maximizes thermal decomposition. The discharge pipe extends into the kiln and connects to negative pressure to draw out the gas during pyrolysis. This prevents oil condensation and pollution. The gas can then be processed to extract oil and other products. The zoned heating and gas extraction improves recycling yield and quality.

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A method and apparatus for pyrolyzing waste tires using both direct and indirect heating to improve efficiency and safety. The method combines direct heating, where combustion gas is injected directly into the reactor, with indirect heating, where combustion gas heats the reactor walls. This allows higher thermal efficiency like direct heating but reduces explosion risks and oil yield fluctuations. The indirect heating can also have lower vacuum pump capacity since combustion gas is immediately discharged.

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