Thermodynamic properties of real and synthetic fluid mixtures derived from fossil substances. Phase behavior study of hydrogen and 450-950/sup 0/F coal liquid from a coal liquefaction unit at Wilsonville, Alabama

Technical Report · Mon Oct 14 04:00:00 EDT 1985

OSTI ID:5790153

Gupta, M K; Harrison, R H; Vogh, J W; Gammon, B E

Experimental vapor-liquid-equilibrium (VLE) and density data were determined on hydrogen with a 450 to 95o/sup 0/F boiling range coal liquid at 573.2, 623.2, and 673.2 K and at pressures up to 20.7 MPa. This work was part of an effort to obtain a comprehensive set of physical, chemical, and thermodynamic data on a representative coal liquid. Significant dealkylation and possibly some hydrogenation occurred during measurements on the 673.2 K isotherm. Concentrations of light gases in each phase was determined by gas chromatography. The concentration of the heavier components was determined by simulated distillation and by low-voltage, high-resolution, mass-spectral analysis. The Soave modified Redlich-Kwong equation of state was used to test the data when the system was treated as a single component liquid in equilibrium with a single component gas. One temperature dependent interaction parameter was required to represent the data within experimental uncertainty. Additional hydrogen solubility and VLE data were tested. Tentative linear correlations of the interaction parameters as a function of pseudo-critical pressures, pseudo-critical temperatures, and average molecular weights were developed. 18 refs., 21 figs., 25 tabs.

• Research Organization: National Inst. for Petroleum and Energy Research, Bartlesville, OK (USA)
• DOE Contract Number: FC22-83FE60149
• OSTI ID: 5790153
• Report Number(s): NIPER-108; ON: DE86010657
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
08 HYDROGEN
080800 -- Hydrogen-- Properties & Composition
CHROMATOGRAPHY
COAL LIQUIDS
CORRELATIONS
DATA
DENSITY
DISTILLATES
ELEMENTS
EQUATIONS
EQUATIONS OF STATE
EQUILIBRIUM
EXPERIMENTAL DATA
FLUIDS
GAS ANALYSIS
GAS CHROMATOGRAPHY
GASES
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGEN
INFORMATION
ISOTHERMS
LIQUIDS
MASS SPECTROSCOPY
MEDIUM PRESSURE
MEDIUM TEMPERATURE
MOLECULAR WEIGHT
NONMETALS
NUMERICAL DATA
PHASE STUDIES
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
SEPARATION PROCESSES
SOLUBILITY
SOLVENT PROPERTIES
SPECTROSCOPY
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
VAPORS
VERY HIGH TEMPERATURE