Characterization of the Benzene Methanol Extracts from the Argonne Premium Coal Samples

摘要

Significant differences have been observed in the total amount of material extracted from Argonne Premium coal samples and the swelling coefficients of the resulting residues. Each generally decreased with increasing carbon content. Differences were observed in the amount of the extract proportionating into each of the LC fraction. A higher percentage of the extract from coals of lower rank appeared to elute in the more polar fractions, although the experimental procedure will have to be refined before one can be sure that this conclusion is valid. There did not appear to be any significant differences between the intrafraction maximum in the molecular weight profile for any of the samples. The data reported in this paper represents baseline values for the benzene/methanol extractables from the Argonne Premium Coals. 10 refs., 7 figs., 2 tabs. (ERA citation 13:013946)