What is petroleum coke?

Petroleum coke is black or dark gray hard solid petroleum products, with metallic luster, porous, is formed by tiny graphite crystallization granular, columnar or needle-shaped carbon body.The petroleum coke component is hydrocarbon, containing carbon 90-97%, hydrogen 1.5-8%, also contains nitrogen, chlorine, sulfur and heavy metal compounds.Metallic luster, porous, granular, columnar acicular.

The main uses of petroleum coke are pre-baked anode and anode paste used for electrolytic aluminum, carbonizing agent in carbon industry, graphite electrode, silicon in smelting industry and fuel, etc.

Petroleum coke is a by-product when the raw oil of delayed coking unit is cracked at high temperature to produce light oil.The production of petroleum coke is about 25-30% of the raw oil.Its low calorific value is about 1.5-2 times that of coal, ash content is not more than 0.5%, volatile matter is about 11%, and its quality is close to that of anthracite.