Calcined petroleum coke (CPC) is a high-carbon material derived from petroleum coke, a byproduct of refining crude oil. The process of calcining involves heating petroleum coke in a rotary kiln at temperatures between 1200–1400°C (about 2200–2550°F), which removes volatile substances and drives off impurities, resulting in a product with higher carbon content and fewer impurities.
CPC is primarily used in the production of aluminum, steel, and titanium dioxide, as it serves as a key component in the production of anodes for aluminum smelting. The high purity and dense carbon structure make calcined petroleum coke an ideal material for this purpose, as it has excellent electrical conductivity and can withstand the high temperatures and aggressive environments in the electrolytic reduction process.
Additionally, CPC can be used in the manufacture of electrodes for electric arc furnaces in the steel industry, and in the production of other industrial materials requiring high-carbon content. The quality of CPC depends on the type of petroleum coke used and the calcining process itself.
