Graphitized Petroleum Coke (GPC) o se mea mataʻina taua i le alamanuia metallurgical, faʻaaogaina lautele e avea o se carbon raiser (recarburizer) i le uʻamea ma le tuʻuina o faiga. E gaosia e ala i le maualuga-vevela graphitization o suauu coke i le 2,500-3,500 ° C, faʻaalia i lona maualuga faʻamautu carbon anotusi, sulfur maualalo, ma maualalo tulaga le mama. O le GPC e lauiloa mo lona maualuga maualuga o le faʻaogaina, faʻamautuina le faʻatinoga, ma le lelei i le faʻaitiitia o elemene leaga e pei o le sulfur ma le nitrogen i le uʻamea uʻamea. O le mea lea e avea ai ma mea e sili ona lelei mo le gaosia o le uʻamea maualuga, uʻamea, ma mea faʻapipiʻi.
