High P/T phase and volumetric behavior of coal-liquid constituents. Quarterly report, July 1, 1983-September 30, 1983. [Coal liquid model compounds]

Technical Report · Sat Jan 01 04:00:00 EST 1983

OSTI ID:5719350

Kobayashi, R

During this quarter a simple, generalized correlation for the prediction of vapor pressures of coal liquid model compounds extending to normal fluids has been developed. Renormalization group theory results have been combined with the corresponding states principle to yield a correlation applicable from the freezing point to the critical point. The vapor pressures are obtained through integration of the Clapeyron equation, using a generalized correlation for the latent heats of vaporization and a generalized expression for the compressibility factor difference between the vapor and liquid. The vapor pressure correlation has been successfully tested for twenty-three pure components, including aromatic and heterocyclic compounds, in the region 0.31T/sub c/ < T < T/sub c/. The deviation of predicted vapor pressures from experimental values is in the range 0.11 to 5.45 percent. Work is under way to modify an existing apparatus for the measurement of PVT and VLE data. The apparatus should be ready for testing sometime in early 1984. When testing is completed the first order of business will be to measure pure component liquid densities of coal liquid model compounds. The results will be combined with vapor pressure measurements to obtain liquid phase fugacities.

• Research Organization: Rice Univ., Houston, TX (USA). Dept. of Chemical Engineering
• DOE Contract Number: FG22-82PC50811
• OSTI ID: 5719350
• Report Number(s): DOE/PC/50811-T2; ON: DE84002732
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405 -- Coal
Lignite
&amp; Peat-- Hydrogenation &amp; Liquefaction
010600* -- Coal
Lignite
&amp; Peat-- Properties &amp; Composition
AROMATICS
COAL LIQUIDS
COMPRESSIBILITY
CORRELATIONS
ENTHALPY
FLUIDS
FORECASTING
HETEROCYCLIC COMPOUNDS
LIQUIDS
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
RESEARCH PROGRAMS
STRUCTURAL MODELS
THERMODYNAMIC PROPERTIES
TRANSITION HEAT
VAPOR PRESSURE
VAPORIZATION HEAT