1-11　石炭の表面張力に及ぼす熱処理温度の影響

抄録

In order to investigate the effect of heat treatment temperature and the chemical structures on the surface tension of coal, surface tension and ¹³C-NMR were measured for coal and semi-coke produced at the different temperature. The surface tension of coal slightly decreased by heat treatment at 300°C and increased as the heat treatment temperature elevated above 300°C. Based on ¹³C-NMR analysis, it was suggested that increase in surface tension of coal with increasing of heat treatment temperature caused by rise of the aromatic carbon ratio.