I-graphite petroleum coke isetyenziswa kakhulu kwiinkqubo ezikhethekileyo zokubumba njenge-recarburiser, ngakumbi ekwenzeni iimveliso zesinyithi ezithambileyo nezingwevu ezikumgangatho ophezulu ezinomxholo wesalfure olawulwa ngokuchanekileyo, kunye nakwezinye izinto ezisetyenziswayo.