Solubilities and liquid phase nonidealities in coal liquids: Final report, July 30, 1984-July 30, 1987
The research effort was a three year study of the solubilities of polynuclear aromatic hydrocarbons (PAH's) in organic solvents and the vapor-liquid equilibria of some of these same systems. Solubilities of 102 systems were determined as functions of temperature from ambient temperature to the melting point of the solute. The systems are listed and results are presented. Solubility data were analyzed using four solution models (Regular Solution theory, Extended Regular Solution theory, Wilson's Equation, and UNIQUAC) and binary interaction parameters have been obtained for the liquid phase. Also included are analyses of 35 more systems that have been previously published, for the purpose of composition of the predicted activity coefficients. Vapor pressures were determined for five solvents versus temperature. Also determined were the vapor-liquid equilibria for a test system and for six new systems at three temperatures each. New systems are (tetralin-decalin, tetralin-biphenyl, decalin- biphenyl, tetralin-fluorene, tetralin-fluorene, tetralin- dibenzothiophene, and tetralin-dibenzofuran. Results have been analyzed using four common solution models (Wilson's, UNIQUAC, NRTL, and Van Laar) and the optimum binary parameters determined. We have compared the parameters (for Wilson's and UNIQUAC) for the two methods and discussed the pros and cons of each method as a source for these parameters. Some initial steps have been made towards utilizing statistical mechanical methods for these types of systems. 46 refs., 26 figs., 57 tabs.
- Research Organization:
- Louisiana State Univ., Baton Rouge (USA)
- DOE Contract Number:
- FG22-84PC70784
- OSTI ID:
- 6917014
- Report Number(s):
- DOE/PC/70784-T11; ON: DE88000909
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ANTHRACENE
SOLUBILITY
BENZENE
SOLVENT PROPERTIES
BENZOFURANS
CARBAZOLES
COAL LIQUIDS
THERMODYNAMICS
CYCLOHEXANE
DECALIN
FLUORENE
NAPHTHALENE
PHENANTHRENE
POLYCYCLIC AROMATIC HYDROCARBONS
PYRIDINE
TETRALIN
THIOPHENE
ARRHENIUS EQUATION
BINARY MIXTURES
EQUATIONS
EQUILIBRIUM
LIQUIDS
MELTING POINTS
ORGANIC SOLVENTS
PHASE TRANSFORMATIONS
PROGRESS REPORT
SOLUTES
THERMODYNAMIC PROPERTIES
VAPOR PRESSURE
VAPORS
ALKANES
AROMATICS
AZAARENES
AZINES
AZOLES
CONDENSED AROMATICS
CYCLOALKANES
DISPERSIONS
DOCUMENT TYPES
FLUIDS
FURANS
GASES
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHYSICAL PROPERTIES
PYRIDINES
SOLVENTS
TRANSITION TEMPERATURE
010600* - Coal
Lignite
& Peat- Properties & Composition