Petroleum coke is a by-product of crude oil refining, the main constituent of which is carbon, and contains large amounts of sulfur and heavy metals such as nickel and vanadium. Calcined petroleum coke is obtained by calcination on crude coke. During this process, some of the volatiles and moisture in the raw coke are removed from the material and as a result the weight percentage of carbon increases. … It has many applications. This product is also called high sulfur petroleum coke.
This type of coke is a by-product of crude oil distillation, which is obtained at the end of the distillation tower. Eventually, during the production process, the raw coke is converted to calcined coke, which has a high stabilized carbon content, low gray and very low sulfur. It is a flea (about 40%). The amount of ash is also less. Due to the very high temperature conditions in which oil coke is produced, it has a very small amount of volatile combustible material. As a result, this flea is difficult to burn due to the small amount of volatile material.
In other words, petroleum coke is the product of carbonation – heavy hydrocarbon fragments of oil with high boiling points. Petroleum coke is also produced in the process of producing synthetic crude oil from bitumen extracted from Canadian oil sands and Venezuela’s Orinoco oil field.