Upgrading scrap-tire carbon into a higher-value circular material.
Recovered carbon black is one of the most important value pathways in tire recycling. The goal is to move beyond low-value char and toward engineered rCB that can be evaluated for rubber goods, tire-related applications, plastics, coatings, and technical materials.
What rCB is
Recovered carbon black is carbonaceous material recovered from industrial processing of carbon-rich waste streams, including scrap tire pyrolysis. Raw pyrolytic carbon black usually requires post-processing before it can be positioned for higher-value applications.
Why deashing matters
Pyrolytic carbon black can contain inorganic ash and residues. Deashing, washing, controlled drying, particle-size control, and surface treatment are used to improve consistency, dispersion, cleanliness, and value.
rCB upgrade pathway
1. Tire Pyrolysis
Scrap tires are thermally processed to produce oil, syngas, steel, and pyrolytic carbon black.
2. Mechanical Pre-Treatment
Steel and inorganic components are removed; material is milled to improve downstream purification.
3. Non-Thermal Deashing
pCB is treated to reduce ash and remove impurities from surface and pore structures.
4. Washing / Drying
The purified material is washed and dried under controlled conditions to support rubber compatibility.
Potential applications
Rubber Goods
Technical rubber products, molded goods, seals, mats, and industrial rubber formulations.
Tire Industry Evaluation
rCB may be evaluated against technical specifications for reinforcement and compounding behavior.
Advanced Carbon Products
Further upgrading may support activated carbon, specialty carbon, or other engineered materials.
Important technical note
rCB value depends on actual lab results, ash content, particle size, surface area, structure, dispersion, moisture, residue content, and buyer qualification. Harborview should present rCB as a technology pathway until supplier testing, buyer trials, and offtake agreements are secured.