Thermodynamic model for calorimetric and phase coexistence properties of coal derived fluids

Technical Report · Mon Oct 01 04:00:00 EDT 1990

OSTI ID:6249393

Kabadi, V N

On September 1, 1989 work was initiated on a project to extend the available vapor-liquid equilibrium (VLE) model for coal fluids to allow satisfactory predictions of excess enthalpies of coal liquids at high pressures. The current project involves measurement of some model compound VLE data and chromatographic characterization of coal liquids for distribution of heteroatoms. After one year, a thermodynamic model for VLE and excess enthalpies of defined mixtures of aromatic compounds has been developed. The model uses the modified UNIFAC correlation for the liquid phase. Some unavailable UNIFAC interactions parameters have been regressed from experimental VLE and excess enthalpy data. The model is successful in predicting binary VLE and excess enthalpy data. Some progress has been made on binary VLE measurements and size exclusion chromatography of coal liquids. 11 refs., 5 tabs.

• Research Organization: North Carolina Agricultural and Technical State Univ., Greensboro, NC (USA). Dept. of Chemical Engineering
• Sponsoring Organization: DOE; USDOE, Washington, DC (USA)
• DOE Contract Number: FG22-89PC89762
• OSTI ID: 6249393
• Report Number(s): DOE/PC/89762-T2; ON: DE91008952
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
AROMATICS
CHROMATOGRAPHY
COAL LIQUIDS
DOCUMENT TYPES
ENTHALPY
EQUILIBRIUM
FLUIDS
FORECASTING
FOURIER TRANSFORMATION
FRACTIONATION
GASES
GEL PERMEATION CHROMATOGRAPHY
INFRARED SPECTRA
INTEGRAL TRANSFORMATIONS
LIQUIDS
MATHEMATICAL MODELS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PARTICLE MODELS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
PROGRESS REPORT
SEPARATION PROCESSES
SPECTRA
STATISTICAL MODELS
STRUCTURAL CHEMICAL ANALYSIS
THERMODYNAMIC MODEL
THERMODYNAMIC PROPERTIES
TRANSFORMATIONS
VAPORS