High P/T Phase and volumetric behavior of coal liquid constituents

Technical Report · Sun Jan 01 04:00:00 EST 1984

OSTI ID:6397568

Kobayashi, R

A simple correlation for predicting the vapor pressures of coal liquids between the freezing and critical points, and extending to normal fluids, has been developed on the basis of renormalization group theory and phenomenological scaling theory. The Clapeyran equation has been reduced to an integral form (given in the paper) to represent vapor using a generalized correlation developed by Sivaraman et. al. (1984) for the prediction of latent heats of vaporization of coal liquid model compounds. The vapor pressure correlation has been tested successfully for 23 pure components including aromatic and heterocyclic compounds often found in coal liquids and shale oil in the region O < epsilon = (T/sub c/ - T)/T/sub c/ < 0.69. The deviations in the predicted vapor pressures are in the range 0.11 to 5.45%. Also a simple equation has been developed for prediction of interfacial tension of coal liquid model compounds between their freezing points and critical points. 2 references.

• Research Organization: Rice Univ., Houston, TX (USA). Dept. of Chemical Engineering
• DOE Contract Number: FG22-82PC50811
• OSTI ID: 6397568
• Report Number(s): DOE/PC/50811-T5; ON: DE85000499
• 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
COAL LIQUIDS
CORRELATIONS
ENTHALPY
FLUIDS
FORECASTING
LIQUIDS
PHYSICAL PROPERTIES
STRUCTURAL MODELS
THERMODYNAMIC PROPERTIES
TRANSITION HEAT
VAPOR PRESSURE
VAPORIZATION HEAT