No.15 Characteristics of Hyper-coal produced by Rapid Heating Extraction

Abstract

The effect of heating rate on the coal extraction yields and the characteristics of the extraction products were investigated in this study. The rapid heating process improved coal extraction yield compare to the conventional heating process. The performance as the caking additive of the rapid heating product was compared with the conventional heating product. The Gieseler plastometry shoed that the rapid heating product has higher fluidity and gave superior improvement of fluidity to a slightly caking coal. On the other hand, the improvement of dilation of a slightly caking coal was almost same by addition of each product. It expected that more efficient process will be constructed by applying the rapid heating process, which product has equal or higher performance as the caking additive compare to the conventional process.