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. 58-59
For quantitative analysis of aromatic molecules in coal pyrolysis gas, a VUV-SPI-MS system have been developed to continuously measure the generated gases. Coals with different degrees of carbonization have been heated from room temperature to 800°C, and the generated gases have been measured using this equipment to compare the molecular species generated by the different coals types. It has been found that benzene and toluene are mainly detected in the pyrolysis gas of bituminous coals with relatively low oxygen concentrations, while gases containing OH groups such as phenol and cresol are mainly generated from subbituminous coals with high oxygen concentrations. Solid-state 13C-NMR spectra of coking coals corroborate this result, indicating that the proportion of oxygen bonded to aromatic carbon is greater in younger coals. These two results provide insight into the relationship between coal pyrolysis g as and the structure of the coking coal.