Calcined petroleum coke inogona kukamurwa kuita high-sulfur coke, ine sulfur content inopfuura 3%, uye low-sulfur coke, ine sulfur content isingasviki 3%. Calcined petroleum coke yemhando yepamusoro inonyanya kushandiswa pakunyungudutsa silicon yemuindasitiri uye kugadzira mapurasitiki anode. High-sulfur coke inowanzo shandiswa semafuta mumafekitori esimende nemafekitori emagetsi.