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
共催: 石炭・炭素資源有効利用研究会
会議名: 第59回石炭科学会議
開催地: 札幌・道民活動センターかでる2.7（ハイブリッド開催）
開催日: 2022/10/20 - 2022/10/21
p. 42-43
We have proposed a pretreatment method for improving coking property of low-grade coals, in which low-grade coals are treated with a reductant such as formic acid at around 60°C. It was shown that the treatment by either aqueous formic acid or formic acid vapor significantly improved the coals’ thermoplastic performance and enhanced the strength of the resulting coke even though consumption of the reductant formic acid was small enough to hardly change the elemental composition of the coals. We have also succeeded in restoring the coking property of weathered coking coal.
