Graphitized Petroleum Coke (GPC) yog ib yam khoom siv tseem ceeb hauv kev lag luam hlau, siv dav ua cov pa roj carbon (recarburizer) hauv cov txheej txheem steelmaking thiab casting. Nws yog tsim los ntawm kev kub siab graphitization ntawm petroleum coke ntawm 2,500-3,500 ° C, uas muaj cov pa roj carbon ntau, cov sulfur tsawg, thiab cov impurity tsawg. GPC paub txog nws qhov kev nqus siab, kev ua haujlwm ruaj khov, thiab kev ua haujlwm zoo hauv kev txo cov khoom phom sij xws li sulfur thiab nitrogen hauv cov hlau molten. Qhov no ua rau nws yog cov khoom siv zoo tshaj plaws rau kev tsim cov hlau zoo, hlau cam khwb cia, thiab cov hlau sib xyaw.
