Separation and characterization of coal derived components. Quarterly report, 31 March-30 June 1983
The field ionization mass spectra from Kentucky 9/14 coal-derived SRC(F-51) fractions and several preasphaltene fractions are discussed. Results from the detailed interpretation of the field ionization mass spectra from the hydrocarbons of Wyodak coal-derived SRC(F-45) and F-51 are presented. The results showed the complexity of the hydrocarbon samples, but also revealed important differences and similarities among the numerous mass spectra. Solubility tests were run on preasphaltene fractions and the results indicated preasphaltenes-1 (chloroform soluble) were soluble in several solvents. However, preasphaltenes-2 (pyridine soluble) were only soluble in pyridine. Preliminary chromatography experiments were performed for the fractionation of preasphaltenes-1 and preashaltenes-2. Water deactivated neutral, acidic, and basic alumina adsorbents were tested. The results indicated that acidic alumina gave the best recovery for the fractions. However, experiments with a few model compounds showed that partial decomposition of the model compounds occurred on the acidic alumina. Several high performance liquid chromatography experiments were carried out with hydroxyl aromatic standards. The results will be used for mobile phase optimization in the high performance separation of hydroxyl aromatics in coal liquids. Experiments were initiated on the high performance liquid chromatographic separation of compound classes in coal liquids and also for the high performance separation of basic and nonbasic nitrogen heterocycles.
- Research Organization:
- Wyoming Univ., Laramie (USA)
- DOE Contract Number:
- AC22-83PC60015
- OSTI ID:
- 5933671
- Report Number(s):
- DOE/PC/60015-3; ON: DE83016477
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ALKANES
AROMATICS
AZINES
CHLORINATED ALIPHATIC HYDROCARBONS
CHLOROFORM
CHROMATOGRAPHY
COAL LIQUEFACTION
COAL LIQUIDS
DATA
EXPERIMENTAL DATA
EXTRACTION
FLUIDS
FRACTIONATION
HALOGENATED ALIPHATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
HEXANE
HYDROCARBONS
INFORMATION
LIQUEFACTION
LIQUID COLUMN CHROMATOGRAPHY
LIQUIDS
MASS SPECTROSCOPY
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SOLVENTS
PYRIDINE
PYRIDINES
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENTS
SPECTROSCOPY
SRC PROCESS
STRUCTURAL CHEMICAL ANALYSIS
STRUCTURAL MODELS
THERMOCHEMICAL PROCESSES
TOLUENE