Icoke yepetroleum enegrafu kukuguqula icoke yepetroleum ibe yikristale enehexagonal layered crystalline carbon kubushushu obuphezulu obumalunga nama-3000 degrees kwiziko legraphitization, oko kukuthi, icoke yepetroleum iba yigraphite. Le nkqubo ibizwa ngokuba yi-graphitization. I-petroleum coke ecutshungulwa ngenkqubo ye-graphitization ibizwa ngokuba yi-graphitized petroleum coke.
