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Solvent for coal liquefaction are very important. They determine the liquefaction efficiency. In this study, three anthracene oils were obtained by the different hydrogenation conditions: Weakly hydrogenated anthracene oil (WA), medium (MA), Strongly (SA) were obtained. They were separated to 5 or 6 portions by fractional distillation.<BR>Miike coal-1 and 2 were liquefied under the pressure of nitrogen. 1-Methylnaphthalene and WA were used as the solvent. Miike coal-1 contained 23. 6% of ash, and Miike coal-2 contained 8. 5% of ash. Conversions of Miike coal-1 were higher than those of Miike coal-2. Both conversion of Miike coal-1 and that of Miike coal-2 were decreased with an increase in the boiling point of anthracene oil.<BR>Conversions for Miike coal-2 were decreased with an increase in boiling point of WA and SA, and increased with an increase in boiling point of MA. Conversion did not depend upon the degree of hydrogenation for used anthracene oil. Optimum hydrogenation conditions for anthracene oil must be present. Hydrogen shuttler reaction was expected for the anthracene oil which had higher boiling point. However the degree of hydrogen consumption was larger in the case of anthracene oil than that in the case of tetralin.
- 一般社団法人 日本エネルギー学会の論文
一般社団法人 日本エネルギー学会 | 論文
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