Scrap tires are internationally recognized as “black pollution.” The scrap tires generated each year pose a serious threat to the global environment. Turning waste into new resources is a requirement of the circular economy and has become a widely discussed issue in the international environmental field. Scrap tire pyrolysis technology can convert scrap tires into high-value recycled resources and is a closely watched technical route in the tire-to-fuel segment of chemical recycling.

Niutech has focused on industrial continuous pyrolysis technology for nearly 40 years. Its self-developed intelligent industrial continuous scrap tire pyrolysis production line decomposes the polymers in scrap tires in an oxygen-free or oxygen-lean environment into high-value products such as pyrolysis oil, recovered carbon black, steel wire, and non-condensable combustible gas, thus converting waste into a resource. The technical difficulties in the tire pyrolysis process are concentrated in three areas: the pyrolysis system is prone to coking; dynamic sealing of the feeding and discharge systems is difficult; and the output products tend to polymerize. Niutech designs its system around heating temperature, heat transfer area, heat conduction efficiency, working pressure, and residence time, and repeatedly optimizes it based on more than 10,000 technical parameters accumulated from actual projects, overcoming multiple technical barriers in the tire pyrolysis process. The equipment uses proprietary waste heat recycling technology and non-condensable combustible gas purification technology to reduce fuel consumption and flue gas emissions. It also adopts standard burners and heating devices to lower the generation of NOx and SOx. The equipment is already in operation in dozens of countries and regions worldwide, including Germany, the UK, South Korea, Denmark, and Brazil.

The tire pyrolysis oil produced by Niutech’s equipment has low viscosity, a high calorific value, a high content of light fractions, and a relatively low content of heavy fractions. It therefore has a wide range of applications; this is also a reflection of the continuous operation of the entire system. Scrap tire pyrolysis also produces high-quality carbon black, which can be used in new tire manufacturing and in various rubber products, composites, inks, asphalt modifiers, and color masterbatches, and has high application value. The recovered steel wire can be used to make metal abrasives and basic steel materials such as steel cut wire shot. Niutech’s continuous pyrolysis equipment overcomes the drawbacks of conventional batch equipment—low efficiency, low processing capacity, high energy consumption, high cost, potential safety hazards, and short service life—and achieves continuous operation throughout the production process. During tire pyrolysis, it does not require frequent shutdowns or repeated opening, closing, and heating of the equipment, giving it advantages in safety, energy savings, environmental protection, and long service life.

Niutech specializes in industrial continuous scrap tire pyrolysis processes and extends its services across the entire scrap tire disposal chain to provide customers with integrated solutions. For companies developing a tire recycling business, whether the equipment can run continuously and stably directly determines the quality of the pyrolysis products and the economic returns. Niutech provides a complete green recycling solution package for this process, helping customers improve the quality of the pyrolysis products and the economic returns through a wide range of high-value applications.