Calcined petroleum coke (CPC) and graphite petroleum coke (GPC) are two different materials that are commonly used in various industrial applications.
CPC is a high-quality carbon material produced by heating green petroleum coke to a high temperature (typically above 1200°C) in a rotary kiln or hearth furnace. This process removes impurities and moisture from the petroleum coke, resulting in a highly pure carbon product with a high fixed carbon content. CPC is used primarily in the production of aluminum, steel, and titanium dioxide.
GPC is a form of raw petroleum coke that has been treated with high-temperature graphitization to remove impurities and convert the coke to a highly ordered form of carbon. This process increases the carbon content and improves the electrical and thermal conductivity of the material. GPC is commonly used in the production of graphite electrodes, anodes, and other carbon-based products.
In summary, while both CPC and GPC are derived from petroleum coke, CPC is a high-purity carbon material used primarily in the production of metals, while GPC is a highly ordered form of carbon used primarily in the production of graphite-based products.