|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials
||K-129: The Experimental Study on Combustibility of Semi-coke and Pulverized Coals Injected in Blast Furnace
||Guangsheng Suo, Yang Li, Xiong Xiao, Guishang Pei
|On-Site Speaker (Planned)
Semi-coke is a kind of solid carbon product produced by dry distillation pyrolysis of high-volatile bituminous coal with no viscosity or weak viscosity at medium or low temperature. Semi-coke is much cheaper than coal for blast furnace injection, and it has the characteristic of low sulfur, low explosive and high reactivity, thus can replace part of anthracite coal injected in blast furnace. In this article, the combustibility of bituminous coal, anthracite and semi-coke as well as coal blend were investigated with thermogravimetric and differential scanning calorimetry analysis. The results show that the combustibility of semi-coke is worse than that of bituminous coal in whole combustion period, while better than that of anthracite. With the ratio of semi-coke in coal blend increases from 10% to 40%, the combustibility of coal blend becomes better and then worse, and reaches the maximum when the ratio of semi-coke is 30%.