What Is Tire Pyrolysis

Tire pyrolysis converts end-of-life tires into valuable commodities using heat in the absence of oxygen. Rather than burning tires, the process decomposes their polymers into reusable materials, positioning it as a core circular-economy technology.

How the Process Works

In tire pyrolysis, shredded tires are heated inside a sealed, oxygen-free reactor. Without oxygen, the rubber does not combust. Instead, its long hydrocarbon chains break down thermally into shorter molecules that leave the reactor as vapor. Those vapors are then condensed into liquid pyrolysis oil, while non-condensable gases are recovered as syngas.

What remains in the reactor is a solid char composed of recovered carbon black and the steel wire originally used to reinforce the tire. After the reactor cools, the steel is separated magnetically and the char is milled and refined into a carbon black product suitable for various industrial uses.

Primary Outputs

The process yields four main streams. Pyrolysis oil is a liquid fuel that can be refined further or blended into fuel applications. Recovered carbon black substitutes for virgin carbon black in rubber, plastics, and coatings. Steel is recycled into the scrap metal market. Syngas can be recovered and used to heat the process itself, improving energy efficiency.

Why It Matters

Every year, enormous volumes of scrap tires reach end of life. Landfilling wastes embedded materials and creates fire and vector risks, while open burning releases uncontrolled emissions. Pyrolysis offers a controlled alternative that recovers both the energy value and the material value of the tire.

Continuous vs Batch Systems

Modern plants operate in two broad configurations. Batch systems process tires in discrete loads, while continuous systems feed material steadily. Continuous operation generally offers higher throughput and more consistent product quality, which matters for buyers seeking steady commodity output.

Where It Fits in the Value Chain

Pyrolysis sits between waste collection and industrial manufacturing. Tire recyclers, waste management firms, and energy companies are the typical operators. The recovered materials feed back into rubber compounding, fuel blending, and metals markets, closing the loop on a material that would otherwise be discarded.

Selecting the right technology partner is the single most consequential decision in a pyrolysis project, because reactor design, product quality, and operational reliability vary widely across the market.

Learn More:

• Explore Klean’s tire pyrolysis projects
• Learn about recovered carbon black output
• See how pyrolysis oil is produced and used

Start with the Right Technology Partner

Tire pyrolysis recovers both the energy and the material value of end-of-life tires, but reactor design and product quality vary widely across the market. Choosing the right technology partner is the most consequential decision in any pyrolysis project.

Ready to explore tire pyrolysis for your operation?

Contact Klean Industries about tire pyrolysis technology and project development » GO.