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Hydrogenation of brown coal. 9. Physical characterization and liquefaction potential of australian coals

✍ Scribed by Peter Redlich; W.Roy Jackson; Frank P. Larkins

Publisher: Elsevier Science
Year: 1985
Tongue: English
Weight: 915 KB
Volume: 64
Category: Article
ISSN: 0016-2361
DOI: 10.1016/0016-2361(85)90339-4

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✦ Synopsis

A detailed chemical study has been made on a suite of 27 Australian coals of varying rank. The coals had a wide range of H/C values and, in addition to chemical analysis, were examined by Fourier transform infrared spectroscopy and 13C solid state n.m.r. The coals were reacted with hydrogen in tetralin at 405'C and in decalin under nitrogen at 32O'C. The products of these reactions were examined by a variety of spectroscopic and other analytical techniques. On the basis of the results it is proposed that brown coals consist of a polymeric lignin-based structure which traps varying amounts of smaller, more aliphatic, molecules. Black coals have more complex structures.

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