Separation and characterization of hydroxyl aromatics in oils and asphaltenes from nondistillable, pyridine soluble coal-liquids
Hydroxyl aromatics are an important class of compounds in coal liquefaction processes. The separation and characterization of hydroxyl aromatics are particularly important for the development of coal liquefaction processes and for an understanding of coal liquefaction chemistry. It has been shown that oils and asphaltenes in high-boiling distillates and nondistillable, pyridine soluble coal-liquid samples produced in an SRC-I process consist of the same major compound classes: hydrocarbons, nitrogen compounds, and hydroxyl aromatics. However, as reported by Boduszynski, et al. oils and asphaltenes differ in the concentrations of hydrocarbons, nitrogen compounds, and hydroxyl aromatics. In this work, hydroxyl aromatic fractions were isolated from oils and asphaltenes in nondistillable (> 427/sup 0/C) Wyodak and Kentucky pyridine soluble coal-liquid samples using procedures developed by Boduszynski, et al. (Boduszynski, M.M.; Hurtubise, R.J.; Silver, H.F. Anal. Chem. 1982, 54, 372 and Boduszynski, M.M.; Hurtubise, R.J.; Silver, H.F.; Anal. Chem. 1982, 54, 375).
- Research Organization:
- Wyoming Univ., Laramie (USA)
- DOE Contract Number:
- AC22-83PC60015
- OSTI ID:
- 5664185
- Report Number(s):
- CONF-850942-10; ON: DE85010559
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010600* -- Coal
Lignite
& Peat-- Properties & Composition
AROMATICS
ASPHALTENES
ASPHALTS
BITUMENS
CHEMICAL ANALYSIS
CHROMATOGRAPHY
COAL LIQUIDS
DATA
DISTILLATION
EXPERIMENTAL DATA
FLUIDS
FRACTIONATION
HYDROXY COMPOUNDS
INFORMATION
INFRARED SPECTRA
LIQUID COLUMN CHROMATOGRAPHY
LIQUIDS
MASS SPECTROSCOPY
MOLECULAR WEIGHT
NMR SPECTRA
NUMERICAL DATA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
SEPARATION PROCESSES
SPECTRA
SPECTROSCOPY
SRC PROCESS
STRUCTURAL CHEMICAL ANALYSIS
TAR