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U.S. Department of Energy
Office of Scientific and Technical Information

Evaluation of intermolecular attractive forces in coal derived liquids. Quarterly report, February 1984-April 1984

Technical Report ·
OSTI ID:7089878
Quantitative solubility measurements of nine model compounds and seven coal derived preasphaltene samples (four native, three derivatized by acetylation) have been carried out in twelve solvents. Plots of model compound solubility versus solubility parameter exhibited, in general, maxima of ca. 9 to 9.5 H, in agreement with literature results for coal derived asphaltenes. Similar plots for the native preasphaltene samples revealed maxima of ca. 10.5 to 11 H, in accord with reported studies. Little correlation between solubility of model compounds and either net hydrogen bonding indices or donor number minus acceptor number values of solvents was observed. General trends of increasing dissolvability of preasphaltenes with increasing net hydrogen bonding indices or increasing donor number minus acceptor number values of solvents were noted. 13 figures, 5 tables.
Research Organization:
North Dakota Univ., Grand Forks (USA)
DOE Contract Number:
FG22-83PC60808
OSTI ID:
7089878
Report Number(s):
DOE/PC/60808-2; ON: DE84013317
Country of Publication:
United States
Language:
English