THE TECHNOLOGY FOR EFFICIENT USE OF WASTE TYRES

Abstract In recent decades, automobile transportation has become a significant factor affecting the ecology of cities. The increase in technogenic load on the environment occurs not only due to exhaust gases but also because of the large volumes of waste tires produced. It is known that old and worn-out tires, tubes, and other rubber products are classified as waste of the IV hazard category. In global practice, there are various methods to handle such waste, including incineration, regeneration, grinding, recovery, thermal liquefaction, tire use without preliminary preparation, and pyrolysis. End-of-life tires contain valuable recyclable raw materials, comprising 65-70% rubber, 15-25% technical carbon, and 10-15% metal, so their effective recycling can solve ecological problems and ensure high profitability for recyclers. Pyrolysis is a common chemical method for recycling used and end-of-life tires, generating solid carbon residue, liquid, and gaseous phases. From an ecological perspective, pyrolysis offers undeniable advantages as it allows the subsequent reuse of valuable hydrocarbon raw materials. However, the parameters of pyrolysis regimes for used automotive tires and the quality and quantity of the recycled products obtained have not been sufficiently studied to date. Therefore, comprehensive research is essential to develop environmentally safe technologies for processing old and discarded tires using promising pyrolysis methods and to create methods for obtaining high-quality recycled raw materials with enhanced ecological safety.