Composition of pyridine extracts from reduced and untreated coals as determined by high-resolution mass spectrometry.
Kessler T; Raymond R; Sharkey AG Jr.
Fuel 1969 Jan; 48(2):179-186
High-resolution mass spectrometric analyses of pyridine extracts from reduced and untreated coals support reasons advanced by reggel and co-workers for the increased solubility of reduced coals. High- resolution data on the reduced coal show evidence for (1) an increase in the volatile oxygenated compounds that may result from splitting of ether linkages in the coal, (2) a substantial reduction of sulfur in the coal, (3) the formation of smaller and more soluble coal units or 'molecules', and (4) the formation of hydroaromatic compounds.
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