Liquefaction of subbituminous coals under apparently non-hydrogenative conditions

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

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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.

元の言語英語
ページ(範囲)603-609
ページ数7
ジャーナルFuel
61
発行部数7
DOI
出版物ステータス出版済み - 7 1982

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

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    Mochida, I., Iwamoto, K., Tahara, T., Korai, Y., Fujitsu, H., & Takeshita, K. (1982). Liquefaction of subbituminous coals under apparently non-hydrogenative conditions. Fuel, 61(7), 603-609. https://doi.org/10.1016/0016-2361(82)90004-7