Abstract
Carbon aromaticities for a further 15 bituminous coal samples, including vitrinite and semi-fusinite maceral concentrates, have been obtained by solid state C-13 NMR using the quantitative single-pulse excitation (SPE) technique, to add to the results for samples reported previously (Fuel, 1994, 73, 1926). A virtually identical linear correlation between the aromaticity (values in the range 0.73-0.91) and atomic WC ratio holds for the new samples investigated, confirming that it is independent of both inertinite content and geological provincialism. (C) 1998 Elsevier Science Ltd. All rights reserved.
Original language | English |
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Pages (from-to) | 783-785 |
Number of pages | 3 |
Journal | Fuel |
Volume | 77 |
Issue number | 7 |
DOIs | |
Publication status | Published - May 1998 |