Calcined Petroleum Coke for Industrial Applications – China Wholesale

Calcined petroleum coke (CPC) is a solid carbon material obtained by heating green petroleum coke to temperatures typically between 1200 °C and 1400 °C in an oxygen‑limited atmosphere. This process drives off volatile matter and increases the fixed carbon content, yielding a product with low electrical resistivity and high thermal stability suitable for demanding industrial processes.

Key Material Characteristics

The primary attributes that determine CPC performance are its fixed carbon percentage, volatile matter, sulfur content, moisture, and real density. These parameters influence electrical conductivity, reactivity, and handling characteristics in downstream applications.

Typical Applications in Industry

The high carbon purity and low volatility of CPC make it a preferred raw material for the production of anodes used in aluminum smelting. In this role, the material’s electrical resistivity directly affects cell voltage and energy consumption.

• Anode manufacturing: CPC is blended with coal tar pitch, formed into blocks, and baked to produce consumable anodes that conduct electricity into the electrolytic cell.
• Fuel for power generation: When ground to a fine powder, CPC can be burned in boilers or cement kilns, providing a high‑calorific value fuel with relatively low ash content.
• Steel industry recarburizer: Adding CPC to molten steel adjusts the carbon content while minimizing nitrogen pickup compared with other recarburizers.
• Production of graphite electrodes: Further graphitization of CPC yields synthetic graphite used in electric arc furnaces and lithium‑ion battery anodes.

Quality Control and Testing

Consistent quality is achieved through systematic sampling at multiple points during calcination, followed by laboratory analysis using standardized methods such as ASTM D3172 for proximate analysis and ISO 1171 for sulfur determination. Each batch is accompanied by a certificate of analysis reporting the key parameters listed above.

Process controls include monitoring kiln temperature profiles, residence time, and feedstock variability. Deviations outside the specified ranges trigger corrective actions before material is released for shipment.

Packaging and Logistics

CPC is typically shipped in bulk using covered hopper railcars or sealed bulk containers to protect against moisture ingress. For smaller quantities, multi‑wall polyethylene‑lined bags of 25 kg or 50 kg are employed, each bag sealed and palletized for stable handling.

Loading procedures follow industry standards to minimize dust generation, and shipments are accompanied by material safety data sheets (MSDS) detailing handling precautions and fire‑fighting measures.

Frequently Asked Questions

For technical inquiries, sample requests, or wholesale pricing, please reach out to our sales team.