The difference in chemical composition between graphitized petroleum coke and graphite carburizer is mainly reflected in the fixed carbon content and sulfur content.1. Fixed carbon content: The fixed carbon content of graphitized carburizer is generally around 98%, and can even reach 99%.The fixed carbon content of petroleum coke carburizer is approximately 98.5%.2. Sulfur content: The sulfur content of graphitized carburizer is usually between 0.03-0.06%, usually 0.05%.The sulfur content of petroleum coke carburizer is generally around 0.5%.Generally speaking, graphitized carburizers have lower sulfur content than petroleum coke carburizers, while their fixed carbon content is relatively high.