Abstract
Experiments were performed in a TGA apparatus to investigate the pyrolysis properties of one kind of anthracite from Leiyang Power Plant, which has been used by several boilers. The effects of pulverized coal particle size, heating rate and final pyrolysis temperature on the volatile release property are presented. Experimental results confirmed that high heating rate could promote the volatile release rate at the primary period of pyrolysis. However, the complete pyrolysis still needs enough time. The final pyrolysis temperature also strongly affects the amount of volatile matters, while the effect of particle size can be ignored. So the total volatile yields are effected not only by the heating rate but also by the final pyrolysis temperature. The conclusion is different from the former results that volatile yields are independent of the heating rate. These results indicate the anthracite's volatile matter come out parallel with the char combustion, which are similar for the different size pulverized coal particles.
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