第57回石炭科学会議
会議情報
主催: 日本エネルギー学会, 石炭科学部会, コークス工学研究部会, 重質油部会
会議名: 第５７回石炭科学会議
開催地: オンライン開催
開催日: 2020/10/27 - 2020/10/28
灰・微量元素
2-10 空気およびAr雰囲気下での石炭灰分結晶質の熱的挙動解析
p. 38-39
詳細
主催: 日本エネルギー学会, 石炭科学部会, コークス工学研究部会, 重質油部会
会議名: 第５７回石炭科学会議
開催地: オンライン開催
開催日: 2020/10/27 - 2020/10/28
p. 38-39
The thermal behavior of ash components in bituminous coals (Upper Freeport (UF), Illinois #6 (IL) and Beulah-Zap (BZ)) under air and argon atmospheres in the range temperature of 800-1200°C was investigated using XRD and TEM measurements. UF treated under air formed the needle-like crystals which was deduced to be mullite by transformation of andalusite because they mainly consisted of SiO2 and Al2O3. In contrast to UF, IL did not generate these crystals. However, when IL was treated under air after carbonization under Ar, the crystals appeared. The presence of lime in IL inhibited the formation of mullite. Oldhamite was formed by reacting lime with sulfur at the carbonization of IL. As lime was consumed, the formation of mullite was not inhibited under air after Ar treatment.
