Low sulfur, nitrogen, and carbon graphite petroleum coke (GPC) is made from the most burned petroleum coke as raw material, and undergoes a continuous graphitization process of complete graphitization at a maximum temperature of 2600 ℃. Then, after crushing, sorting, and grading, products with different particle sizes of 050mm are provided according to user requirements. Low sulfur and nitrogen free carbon graphite petroleum coke is widely used as a inoculant and carburizing agent in special smelting and precision casting processes, especially in meeting the requirements of high-quality products and strict control of sulfur content in the graphite casting and gray casting industries. Used as a reducing agent in nuclear reactors, as an absorbent for heavy metals in wastewater treatment systems, and as a raw material for graphite cathodes in aluminum electrolysis cells