主催: 社団法人 日本エネルギー学会
会議名: 第33回石炭科学会議
回次: 33
開催地: 東京
開催日: 1996/10/28 - 1996/10/29
p. 269-272
Three coals of different rank were heat-treated at below 473K in a nitrogen atmosphere, and the structural changes in coals were investigated from the pyridine extractabilities, the volumetric swelling ratios using methanol or benzene as solvent and the amounts of carboxyl and phenolic hydroxyl functional groups. Further, the structural changes in deashed coals induced by heat treatment were also discussed.