Recovered Carbon Black (rCB) — Application Areas
Five industry application areas for recovered carbon black (rCB) from tyre pyrolysis — covering rubber compounding, plastic pigmentation, paint tinting, construction additives, and activated carbon adsorbents — with the specific role rCB plays in each.
| Industry | Application | Function |
|---|---|---|
| Tyre & Rubber Industry | Filler and reinforcing agent | Replacement for virgin carbon black in rubber compounds |
| Plastic & Polymer Industry | Black pigment, UV stabilizer | Color and UV protection in plastic products |
| Paints & Coatings | Pigment, tinting agent | Color and consistency in paint formulations |
| Construction Materials | Asphalt, cement, concrete additive | Improves material properties and reduces virgin material use |
| Adsorbents / Activated Carbon | Wastewater and gas treatment | Activated form used for filtration and purification |
Beyond definitions
Planning to start a Tyre Recycling business?
Get the full business understanding — capex, regulations, machinery, vendor questions, and risk checks before you commit capital.
How to read this table
- Each row is one industry; columns show the specific application and the function rCB performs in that application.
- Tyre and Rubber Industry is the highest-value application but also the most quality-sensitive — rCB must meet particle size, ash, and volatile matter specifications to qualify for rubber compound use.
- Activated carbon conversion requires additional heat treatment beyond standard ball milling — it is a higher-investment route to a higher-value product.
About this table
Recovered carbon black (rCB) — the fine solid product remaining after tyre pyrolysis and ball mill grinding of the char — is a multi-industry material with genuine commercial applications across five sectors. The quality and price of rCB are determined by its purity, ash content, particle size, and the degree to which volatile matter has been removed at the reactor stage. This table maps five industries and their specific applications for rCB.
The Tyre and Rubber Industry is the largest and highest-value application for rCB. Carbon black is the primary reinforcing filler in rubber compounding — it gives rubber its characteristic colour, UV resistance, and mechanical strength. Virgin carbon black (N330, N550, N660 grades) is produced from petroleum feedstock; rCB can substitute for virgin carbon black in rubber compounds where performance requirements are met, at lower cost. The substitution percentage depends on rCB quality — high-grade rCB with low ash content and controlled particle size can replace 20–30% of virgin carbon black in tyre compounds; lower-grade rCB is used in non-tyre rubber products. Plastic and Polymer applications use rCB as a black pigment and UV stabiliser — carbon black at 2–3% loading in polyethylene or polypropylene provides black colouration and UV protection for pipes, agricultural film, and outdoor furniture applications.
Paints and Coatings use carbon black as a pigment and tinting agent — the deep black colour, tinting strength, and UV absorption properties that make virgin carbon black valuable in paint formulations are retained in rCB, though colour consistency and dispersion characteristics must be verified for each batch. Construction applications use rCB as an additive in asphalt, cement, and concrete — improving durability and reducing the amount of virgin material required. Adsorbent and Activated Carbon applications represent an emerging, higher-value route for rCB: when activated (treated at high temperature with steam or CO2), pyrolysis char develops a porous structure with high surface area suitable for wastewater treatment and gas purification — competing with commercial activated carbon products.
Key insights
- Tyre and rubber industry is the highest-value market for rCB but requires the highest quality — low ash content, controlled particle size, and low volatile matter are the entry requirements.
- Plastic UV stabilisation (2–3% carbon black loading) is a consistent, volume-driven market — a reliable secondary application for rCB that does not require the quality levels demanded by rubber compounders.
- Activated carbon conversion opens a higher-value market than standard rCB sale — but requires additional capital investment in an activation furnace and produces a different product specification.
- The commercial value of rCB depends entirely on quality — undifferentiated char sold without ball milling or quality control is worth a fraction of the price of consistently specified rCB.
Methodology & sources
Application areas described are based on established commercial rCB market practice as of 2024. Quality requirements for rubber compounding use vary by compound specification and end-product requirements — verify with potential buyers before designing the rCB production and quality control system. Activated carbon production from pyrolysis char is an established technology but requires separate activation process investment not included in standard tyre pyrolysis plant scope.
Related data tables
Batch vs ABAP vs Continuous — Full Comparison
A comprehensive eight-parameter comparison of the three tyre pyrolysis plant types — batch (now banned), ABAP semi-continuous, and continuous — covering operation mode, throughput efficiency, manpower, fuel, maintenance, capital cost, and regulatory suitability.
Steel Recovery — Upgrading Levels and Buyers
Three levels of steel cleaning from tyre pyrolysis — mechanical (90–95% purity), thermal kiln (97%), and chemical HCl treatment (98–99%) — with the upgrading process and target buyers at each purity tier.
TPO Refined Oil Fractions
A three-fraction breakdown of Tyre-derived Pyrolysis Oil (TPO) after distillation — light gasoline-range, diesel-range middle, and heavy oil — with boiling range, characteristics, and commercial applications for each.