🔄 Updated 2025-06-23
Tyre pyrolysis carbon black industry is a rapidly growing sector that plays a crucial role in the recycling and upcycling of waste tyres. Pyrolysis, a thermochemical process that decomposes organic materials at high temperatures in the absence of oxygen, is used to convert scrap tyres into valuable products such as oil, gas, and carbon black. Among these, carbon black is a particularly important byproduct, and its use in various industries contributes to sustainability and circular economy initiatives.

What Is Pyrolysis Carbon Black?
Pyrolysis carbon black, also known as recovered carbon black (rCB) refers to carbon black recovered from waste rubber or used tires through the tire pyrolysis plant. Compared to traditional carbon black, rCB exhibits similar properties and offers a wide range of applications. Its key physical and chemical properties include:
- Black Granular structure
- High carbon content
- Low ash content
- High specific surface area
- Porous structure
- Good electrical conductivity
- Strong chemical stability
- Recyclable
- Suitable for various processing methods

How Carbon Black is Extracted Through Pyrolysis?
- Collection and Preprocessing of Waste Tires
According to the feed requirements of pyrolysis equipment, cut waste tyres into small pieces or particles to ensure optimal efficiency for the subsequent pyrolysis process. - Pyrolysis Process
In an oxygen-free or low-oxygen environment, heat waste tires with high temperatures (typically between 400°C and 600°C). During this process, the organic materials in the tires decompose into gaseous, liquid, and solid products. The primary solid product is carbon black, with a small amount of steel wire. - Carbon Black Collection
Collect and store the produced carbon black in a dry, ventilated, and well-sealed environment to prevent it from reacting with moisture in the air, ensuring its quality remains stable.

Potential Applications of Pyrolysis Carbon Black
So far, the largest consumer of carbon black has been the tire industry, accounting for nearly 70% of global carbon black production, which is used in the manufacture of new tires. An additional 20% is used in the production of technical rubber products, such as seals, molded parts, and shock absorbers. The remaining 10% of carbon black is an essential raw material for plastics, carbon powders, and inks.
| Industry | Target Customer Groups | Demand Motivation |
|---|---|---|
| Tire Manufacturing | Tire manufacturers are one of the main customers of pyrolysis carbon black. Especially those who aim to reduce raw material costs and minimize their carbon footprint are inclined to use pyrolysis carbon black as a partial substitute for traditional carbon black. |
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| Rubber Products | Companies that produce industrial rubber products such as seals, rubber belts, rubber mats, etc., are also important customers of pyrolysis carbon black. | / |
| Plastic Processing | Pyrolysis carbon black is often used as a coloring agent and filler in the plastic industry, especially by manufacturers of plastic products that require consistent color. |
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| Ink, Coatings, and Pigment Manufacturing | Pyrolysis carbon black is widely used in the ink, coatings, and pigment manufacturing sectors due to its coloring ability and cost advantages. Eco-friendly ink and coating manufacturers prefer to use pyrolysis carbon black. |
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| Chemicals and Materials | Some chemical companies use pyrolysis carbon black as a filler or component in composite materials, widely applied in engineering plastics, conductive rubber, and other fields. |
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Great Significance of Pyrolysis Carbon Black Production
Environmental Benefits:
- Reduction of Emissions: Pyrolysis transforms organic waste like plastics and tires into carbon black, effectively reducing waste disposal burdens and mitigating environmental pollution. This provides a sustainable solution, especially in handling tire and plastic waste.
- Low Environmental Impact: Compared to traditional methods like landfill or incineration, pyrolysis significantly reduces harmful gas emissions, particularly greenhouse gases (such as CO2), thereby minimizing atmospheric pollution.
- Energy Substitution: The oil and gas produced during the tyre pyrolysis process can be used as alternative energy, decreasing dependence on fossil fuels and further reducing greenhouse gas emissions, contributing to a lower overall carbon footprint.
Economic Benefits:
- Resource Recovery: Pyrolysis not only extracts carbon black but also produces valuable by-products such as oil and gas. These by-products can be used for energy recovery or further processing, promoting resource recycling and supporting the principles of a circular economy.
- Reduced Raw Material Costs: Carbon black is a key industrial material widely used in industries like rubber, ink, coatings, and plastics. By extracting carbon black through pyrolysis, raw material costs can be significantly reduced.