TY - JOUR
T1 - Liquefaction of subbituminous coals under apparently non-hydrogenative conditions
AU - Mochida, Isao
AU - Iwamoto, Kenjiro
AU - Tahara, Tsutomu
AU - Korai, Yozo
AU - Fujitsu, Hiroshi
AU - Takeshita, Kenjiro
N1 - Funding Information:
ACKNOWLEDGEMENT The present study was financially supported by Grant in Aid from Ministry of Education (Energy Research Project) and from Ministry of Industry and Trade (SunShine Project).
PY - 1982/7
Y1 - 1982/7
N2 - 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.
AB - 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.
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U2 - 10.1016/0016-2361(82)90004-7
DO - 10.1016/0016-2361(82)90004-7
M3 - Article
AN - SCOPUS:0020153103
VL - 61
SP - 603
EP - 609
JO - Fuel
JF - Fuel
SN - 0016-2361
IS - 7
ER -