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Solubilities and liquid phase nonidealities in coal liquids: Final report, July 30, 1984-July 30, 1987

Technical Report ·
OSTI ID:6917014
;
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
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
ALKANES
ANTHRACENE
AROMATICS
ARRHENIUS EQUATION
AZAARENES
AZINES
AZOLES
BENZENE
BENZOFURANS
BINARY MIXTURES
CARBAZOLES
COAL LIQUIDS
CONDENSED AROMATICS
CYCLOALKANES
CYCLOHEXANE
DECALIN
DISPERSIONS
DOCUMENT TYPES
EQUATIONS
EQUILIBRIUM
FLUIDS
FLUORENE
FURANS
GASES
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
LIQUIDS
MELTING POINTS
MIXTURES
NAPHTHALENE
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SOLVENTS
ORGANIC SULFUR COMPOUNDS
PHASE TRANSFORMATIONS
PHENANTHRENE
PHYSICAL PROPERTIES
POLYCYCLIC AROMATIC HYDROCARBONS
PROGRESS REPORT
PYRIDINE
PYRIDINES
SOLUBILITY
SOLUTES
SOLVENT PROPERTIES
SOLVENTS
TETRALIN
THERMODYNAMIC PROPERTIES
THERMODYNAMICS
THIOPHENE
TRANSITION TEMPERATURE
VAPOR PRESSURE
VAPORS