Study on Combustion Characteristics of Blended-coal

Abstract

Based on Mettler-Toledo TGA thermogravimetric analyzer, a series of combustion experiments for two kinds of different coal samples as well as their blends were conducted. The effect of factors such as mixture ratio, heating rate on the combustion characteristics have been investigated. The result shows that ignition temperature of coal increases with the increasing heating rate. Under the different heating rate and mixture ratio, TG curves have basically the same trend. Ignition temperature curves show a small amount increase and irregular change trend and Rw curves show the overall trend at different heating rate and ratio.