I-Calcined Petroleum Coke yimveliso ye-petroleum coke eluhlaza emva kokuba i-calcium inyibilikiswe kubushushu obuyi-1300℃. Kwinkqubo ye-calcination, ulwakhiwo kunye nokwakheka kwezinto ze-carbonaceous ezahlukeneyo kuye kwadlula kuthotho lotshintsho olunzulu, olususa umswakama kunye ne-volatile matter kwi-petroleum coke, luphucula uxinano kunye namandla oomatshini eemveliso, kwaye luphucula ukuhanjiswa kombane kunye neempawu ze-antioxidant ze-petroleum coke eluhlaza.