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Trapped organic compounds and aromatic units in coals

✍ Scribed by Ryoichi Hayatsu; Randall E. Winans; Robert G. Scott; Leon P. Moore; Martin H. Studier

Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
929 KB
Volume
57
Category
Article
ISSN
0016-2361

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✦ Synopsis

Some insight into the chemical nature of coals and the coalification process was obtained by detailed analyses of the organic constituents of three coals -a lignite, a bituminous, and an anthracite coal. Organic compounds trapped in the coal matrix, residuals and products of the original coalification process, were isolated by vacuum distillation and solvent extraction. The macromolecular material which constitutes the bulk of coals was degraded by a series of selective oxidations to smaller units which could be identified and measured. The essential aromatic character of coals was demonstrated, with condensation of aromatic rings increasing with increasing rank.

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