Liquefaction of subbituminous coals under apparently non-hydrogenative conditions

Isao Mochida, Kenjiro Iwamoto, Tsutomu Tahara, Yozo Korai, Hiroshi Fujitsu, Kenjiro Takeshita

研究成果: Contribution to journalArticle査読

32 被引用数 (Scopus)

抄録

Reactivities of several coals of different ranks have been examined in degrading extractions with aromatic solvents under apparently non-hydrogenative reaction conditions. Pyrene and A240 pitch liquefied the fusible coals in high yields and the slightly-fusible coals in moderate yields, indicating the importance of fusibility in such liquefaction processes. A240-LS pitch is a powerful solvent for slightly-fusible coals. Considerable amounts of pyridine- or THF-soluble fractions were produced especially with A240-LS pitch. A240 pitch is a better solvent than pyrene for some slightly-fusible coals. However, the extent of depolymerization of liquefied coal, pyridine- or THF-solubility, was definitely inferior. Yields of such fractions are higher for lower-rank coals. The mechanism of coal liquefaction under apparently non-hydrogenative conditions is discussed with emphasis on the stabilization of thermal fragments derived from the coal.

本文言語英語
ページ(範囲)603-609
ページ数7
ジャーナルFuel
61
7
DOI
出版ステータス出版済み - 7 1982

All Science Journal Classification (ASJC) codes

  • 化学工学(全般)
  • 燃料技術
  • エネルギー工学および電力技術
  • 有機化学

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