2025, Vol. 12, No. 4. - go to content...

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DOI: 10.15862/17EEOR425 (https://doi.org/10.15862/17EEOR425)

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Yatsun A.V. Modern technologies for recycling scrap tires. Russian journal of resources, conservation and recycling. 2025; 12(4). Available at: https://resources.today/PDF/17EEOR425.pdf (in Russian). DOI: 10.15862/17EEOR425

Modern technologies for recycling scrap tires

Yatsun Andrey Vladimirovich
Irkutsk National Research Technical University, Irkutsk, Russia
E-mail: yatsunandrei@yandex.ru

Abstract. Scrap tires are currently one of the most common types of waste worldwide, harming the environment both when incinerated and when simply stored outdoors. Only 15 % of all scrap tires are recycled, and the majority are simply dumped in landfills and unauthorized dumps. This article describes modern scrap tires recycling technologies, including mechanical crushing, incineration, waterjet cutting, cryogenic recycling, barodestruction recycling, ozone recycling, explosive circular recycling, biodegradation, liquefaction in an organic solvent, liquid metal pyrolysis, conventional pyrolysis, and microwave pyrolysis. The main advantages and disadvantages of these technologies are discussed. Waterjet cutting, cryogenic processing, barodestruction processing, ozone recycling, explosive circular recycling, liquefaction in an organic solvent, liquid metal pyrolysis, and biological degradation are expensive and ineffective for industrial processing of scrap tires. Simple and common mechanical crushing and incineration of tires also have their drawbacks: the multi-stage process, the difficulty of removing the power ring, and the high temperature (approximately 1 300°C) required for high-efficiency flue gas cleaning respectively. Traditional tire pyrolysis, compared to other recycling technologies, does not require expensive equipment and is simple to implement; however, it is associated with flue gas emissions and is time-consuming. Another alternative for recycling worn tires is microwave pyrolysis. This pyrolysis significantly reduces the processing time compared to traditional pyrolysis, does not require expensive equipment, and produces no atmospheric emissions. Microwave pyrolysis is suitable for recycling any type of used tires on an industrial scale.

Keywords: scrap tires; modern technologies of processing; conventional pyrolysis; microwave-assisted pyrolysis

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