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. 44-45
To prepare ultra-low sulfur coal, we have challenged chemical desulfurization of subbituminous coals using two peroxides, hydrogen peroxide and peracetic acid. In the presence of hydrogen peroxide, oxidation was promoted only at 60°C, accompanied by significant carbon loss. On the other hand, treatment with peracetic acid promoted the oxidation of thiophene with low carbon loss. By combining pre-oxidation with peracetic acid treatment and pyrolysis at 400°C, 74% of total sulfur and 72% of thiophene could be removed while recovering approximately 90% of total carbon as char.
