Tire-to-Tire Circular Economy is a cutting-edge industrial concept. Its core is to transform used tires from mere disposal into raw materials for manufacturing new tires, thus achieving a closed-loop flow of materials within the industrial chain. This is not just about recycling and reuse. It is an industrial revolution that completely transforms the traditional linear model into a closed-loop one. Its ultimate goal is for most materials in new tires to come from used tires, significantly reducing reliance on primary fossil resources such as oil and coal.
The tire to tire circular economy constructs a closed-loop industrial system. Driven by advanced tire pyrolysis technology and guaranteed by standardized industry collaboration, the tire closed-loop economy has evolved from a conceptual model into an industrial practice, becoming a core direction for global green tire manufacturing and solid waste recycling.
A leading global case demonstrates the effectiveness of this collaborative model: Pirelli, in partnership with Pyrum, BASF, and Synthos, established a European tire recycling closed-loop system. It utilizes recycled carbon black and refined pyrolysis oil from waste tires to produce new tires. Bridgestone and Versalis have also adopted similar industry collaboration models, achieving standardized reuse of recycled materials in tire production.
This cross-industry collaboration achieves specialized division of labor, forming a seamlessly integrated closed-loop industrial chain. Pyrolysis companies complete the decomposition and primary recycling of waste tires. Chemical companies complete deep purification and material modification. Tire manufacturers complete formula optimization and finished product production.
Its core definition is the recovery of high-purity, high-performance raw materials from waste tires and their use in the production of new, qualified tires. This achieves the unlimited recycling of materials without compromising quality. Key recyclable materials include recycled carbon black (rCB), refined tire pyrolysis oil (TPO), recycled steel wire, and synthetic rubber monomers.
Recycled carbon black (rCB) can replace virgin carbon black in new tire production. Tire pyrolysis oil (TPO) can be refined into oils used in the production of chemicals required for synthetic rubber.
This tire-to-tire circular model offers both environmental and economic value.
Standardized waste tire collection and pre-sorting systems are the first step in this closed-loop cycle. Tires of different brands, lifespans, and formulations are categorized and grouped to ensure consistency in raw material performance, providing a reliable raw material foundation for subsequent high-precision pyrolysis recycling.
To achieve large-scale production for a tire to tire circular economy, promoting continuous pyrolysis plant is crucial. Optimizing temperature control and residence time can significantly improve the yield and stability of pyrolysis oil and recycled carbon black. Combined with deep desulfurization, deashing, and molecular refining processes, recycled materials can be further upgraded to tire-grade standards.
Tire recycling cannot be accomplished by a single company. It requires deep collaboration between tire manufacturers, pyrolysis equipment manufacturers, and chemical refining companies.
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