Possibility and Process of the Use of Upgraded Coal and Coke from Indonesian Lignite Coal in the Iron Making Process

This study explored the possibility of using upgraded coal and coke from Indonesian lignite in the ironmaking process, specifically pulverized coal Injection (hereafter, "PCI") coal and carbon composite pellets and carbon material (sintering binder carbon material). The study found that (1) injection of upgraded coal into the blast furnace will have the same effect as the injection of lime - heavy oil slurry into the blast furnace, the combined infusion of highly volatile matter and low ash coal, and flash pyrolysis. (2) The sintering with lignite coke is thought to have the same effect as low temperature sintering type sintering operation. (3) The manufacture of reducing pellets using upgraded coal acts to use carbon material with high volatile matter content in the reduction of carbon composite iron.