With the rapid development of the economy and society, the road passenger and freight transport industry and household vehicle ownership have surged dramatically, leading to a substantial increase in the number of scrap tires. Globally, over 1 billion scrap tires are generated annually, and this number continues to grow.
The recycling and treatment of scrap tires have long been a global challenge, often referred to in the industry as “black pollution.” Traditional disposal methods such as stockpiling, landfilling, or incineration not only consume vast land resources but also risk causing secondary pollution. More critically, only about 5% of scrap tires can be retreaded, leaving the remaining 95% to be scrapped, necessitating more thorough treatment solutions.
I. Tire Pyrolysis
Pyrolysis represents the ultimate method for recycling scrap tires and serves as an effective approach to achieving harmless treatment and resource recovery. This technology safely and environmentally converts scrap tires into high-value renewable resources, leaving no waste behind.
Although pyrolysis technology is not a new concept, its industrial application has long faced bottlenecks. Through nearly 40 years of technological refinement, Niutech has independently developed a “Continuous Tire Pyrolysis System” incorporating eight core technologies, including coking-free technology, gas-tight sealing, and anti-polymerization, successfully resolving global industry challenges such as coking, sealing difficulties, and product polymerization.
Scrap tire pyrolysis is a complex physicochemical process. Its fundamental principle involves using high-temperature thermal energy to decompose tires from high-molecular compounds into low-molecular compounds, effectively transforming tires into fuel.
A complete scrap tire pyrolysis oil production line includes systems for crushing and cleaning, feeding, pyrolysis treatment, oil processing, and exhaust gas recovery and treatment.
II. Product Applications: Versatile Uses of Pyrolysis Oil
The pyrolysis oil derived from tires has a calorific value exceeding 10,000 kcal and holds broad application prospects. Its primary uses include three main areas:
– Direct use as fuel oil for industrial sectors such as cement plants, glass factories, ceramic factories, power plants, steel mills, and boiler plants;
– Power generation via heavy oil generators to achieve energy recovery;
– Refinement for use as fuel in ship engines.
The oil produced from pyrolysis can serve as feedstock for refineries, while the recovered steel wires can be remelted for reuse. The carbon black, after deep processing, can be applied in tires, rubber, and other fields, and the combustible gas can be recycled as in-plant fuel. This comprehensive resource utilization model truly realizes a circular economy closed loop—”from tires, back to tires.”
Niutech has not only excelled in the domestic market but has also exported its advanced pyrolysis technology to dozens of countries worldwide, becoming a “Chinese hallmark” in the international high-end pyrolysis sector. Its technology and integrated equipment have obtained seven authoritative international certifications, including EU CE, German TÜV, and ATEX explosion-proof certification.
In 2025, Niutech secured another repeat European order worth nearly RMB 100 million, signing a contract with a long-term European client for an industrial continuous scrap tire pyrolysis production line valued at $14 million.
Niutech’s success underscores a fundamental truth: only by embedding innovation into the soil of green development can waste be truly revitalized, and environmental technology become a “green engine” for economic growth. By 2025, Niutech’s technological applications had cumulatively reduced carbon emissions by over 25 million tons, contributing “Chinese wisdom” to global waste resource recovery and carbon neutrality.
As the global wave of circular economy advances, scrap tire pyrolysis technology is embracing broader development prospects. The transition from a source of pollution to a sustainable resource represents not only a triumph of technology but also a step forward in rebalancing the relationship between human civilization and nature.