Combustion of super fine particles is a new pulverized coal combustion technique. Compared with conventional combustion techniques, it has the advantages of good flame stability, high burnout, low NO_x release, and low comprehensive cost. Using Netzsch Thermobalance, STA 409C, and maintaining the test conditions for all the samples at the heating rate of 20deg.C/min, the paper investigated the combustion properties of Heshan (Hs) subbituminous coal and Jincheng (Jc) lean coal, each in four different average sizes.
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