Fundamental Study on the Carbonization Characteristics of Low Rank Coal Under Low Temperature and its Application on Traditional Blacksmith
The fundamental study on carbonization characteristic of low rank coal under low temperature was investigated by using a laboratorium scale electric furnace. In this experiment, the mass decreasing fraction of coal during carbonization, the bahaviour of volatile matter and the changes of fixed carbon as well as gas composition during carbonization was carried out. The effect of fixed carbon content in fuel on iron quality is also investigated. The experimental method for investigation of low rank coal carbonization characteristic was selected by variation of the carbonization temperature and nitrogen was introduced as a carrier gas. The experimental result shows that the mass decreasing fraction of coke was increased with the carbonization period. The fixed carbon content in coke was increased with the carbonization temperature. The gas composition during carbonisation shows consist of argon (Ar), carbon monoxide (CO) and methane (CH4). It shows that the CO gas is dominated of the amoung them. It is shown that the iron surface hardness may affect on carburizing media.