Hard-to-Treat Waste Tires Transformed into Resources via Continuous Tire Pyrolysis

Tire and rubber consumption in automotive manufacturing is immense. As vehicles and tires reach end-of-life, their disposal becomes critical.

In 2024, global waste tire production exceeded 1 billion units, weighing over 40 million tons. China—the largest producer—generated ~370 million tires (16.4+ million tons), accounting for over 1/3 of the world's total. These tires contain complex blends of natural/synthetic rubber, carbon black, and chemical additives. While ensuring durability, they resist degradation. Over time, they release micro-particles and toxins that seep into soil and water, causing long-term pollution. Piled tires also risk spontaneous combustion in high heat or fires from mishandling—tire fires are notoriously hard to extinguish.

Historically, landfilling or incineration caused severe environmental harm.

Global Regulatory Shift
Many nations now ban open dumping and landfilling of tires (e.g., China, the EU, Japan). The EU mandates producer responsibility for recycling.

Continuous Pyrolysis: The Core Solution
Continuous tire pyrolysis uses high-temperature molecular conversion to transform waste rubber into:

· High-calorific fuel oil

· High-purity carbon black

· Recyclable steel wire

· Fuel gas

This builds a complete material loop:
→ Pyrolysis oil re-enters petrochemical production
→ Carbon black returns to rubber manufacturing
→ Purified steel feeds remanufacturing

Industrial & Environmental Wins

· Safely treats hazardous waste

· Creates a reverse supply chain from tires to industrial feedstocks

· Boosts resource circulation efficiency

· Enables controlled conversion of organics

· Reduces industrial carbon intensity

· Establishes a closed-loop regeneration system

Niutech: Pioneering Global Implementation
This Chinese high-tech firm innovated large-scale intelligent continuous pyrolysis systems. Deployed worldwide, they deliver:

· Environmental benefits

· Economic gains

· Green transformation for the rubber industry

2024 Milestone: World's Largest Project
Niutech's 200,000-ton/year waste tire pyrolysis line (ISCC-certified) achieves high-value output:

· Upgraded carbon black: Meets higher performance standards; feeds new tire production ("waste-to-new" loop).

· Pyrolysis oil: Replaces crude oil after processing. Scaling this technology could reduce global fossil fuel consumption and decarbonize tire manufacturing.

Conclusion
Niutech's advanced pyrolysis technology minimizes tire waste, eliminates pollution, and maximizes resource reuse—driving environmental sustainability forward.