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Worn tires that are taken to waste dump pollute the environment for a long time due to high resistance to external factors (the durability of a tire in water is 1500-2000 years, in the atmosphere – 50-60 years). When the worn tires are burned, soot is emitted into the atmosphere and toxic gases (biphenyl, anthracene, fluorentane, pyrene, benzapiren), which have a harmful effect on the environment (soils, water, air). Worn oils are one of the most significant sources of environmental pollution. This paper deals with the processing of worn tires and used oils. The limitation of the oil-based fuel reserves lays a pressure on finding their substitute replacement by alternative ways of production. Worn tires and lubricating oils are valuable polymeric raw materials: 1 ton of tires contains about 700 kg of rubber, which can be reused for fuel production. An alternative method of obtaining fuel is proposed. An analysis of oil recycling methods is presented. Consideration of the efficiency of the use of ultrasonic action and microwave radiation in the used oil recycling process is given. The use of ultrasonic radiation in the process line for purification of waste oil allows it to be separated from solid inclusions by a low energy consumption process and absence of additional costs (gas, solvents, etc.). The total oil cleaning will be 0.4-2 μm. An improved recycling technology for used oils is presented. The method for producing an alternative hydrocarbon fuel, developed by the authors, combines the processing of worn tires and worn lubricating oil in the presence of the proposed rubber decomposition activators. The use of this method speeds up the process of decomposition, processing and mixing, improves the quality of the resulting fuel. The liquid fuel output is 70 % by weight of the rubber-oil wastes processed, gases are 5 % by weight, solid hydrocarbon residue 20 % and metal 5 %.

Processing and recycling of rubber and oil wastes into hydrocarbon fuel by method of physico-chemical activation