And feed properties of petroleum coke morphology with process, different operation conditions. From petroleum coke industry sites for the production ofpetroleum coke were called coke (green cokes), including some not carbonized carbon hydrocarbon compounds, volatile, coke can be used as fuel of petroleum coke, if to do electrode aluminium anode or steelmaking, need high-temperaturecalcination, the after carbonization, reduce to the minimum extent of volatiles.Most petroleum coke coke appearance work sites for the production of brownporous solid blocks of irregular, sponge coke (sponge coke). Second kinds ofbetter quality of petroleum coke is coke (needle coke) and sponge coke ratio, theresistance and lower thermal expansion coefficient, and therefore more suitable for electrode. Sometimes another hard Petroleum Coke will also produce, calledspherical coke (shot coke). The focal shape as the projectile, surface area is little, not easy to coking, so not much use.