Phase equilibrium in coal liquefaction processes. Final report
Gas-liquid equilibria have been determined in simulation of coal liquefaction process conditions in mixtures of light gases + heavy hydrocarbons (polynuclear aromatics, N, S, and O containing aromatics, some paraffins, and naphthenes). The mixture systems experimentally investigated are: 32 binary mixture systems of a light gas (hydrogen, methane, or carbon dioxide) + a heavy hydrocarbon, 2 ternary mixture systems of hydrogen + two heavy hydrocarbons, 2 ternary mixture systems of hydrogen + methane + a heavy hydrocarbon, 5 complex mixture systems of hydrogen + a coal oil fraction, and 4 complex mixture systems of methane + a coal oil fraction. Equilibrium data were determined at pressures up to 250 atm and temperatures up to 460/sup 0/C which is substantially above the upper limit of previously reported investigations in the literature of about 220/sup 0/C. A flow apparatus of special design made possible the attainment of the elevated temperatures at high pressures. Vapor pressures were determined for eight hydrocarbons at superatmospheric pressures using the same flow apparatus. A solubility parameter based correlation has been developed for the solubility of hydrogen. The hydrogen, methane, and carbon dioxide data have been analyzed and correlated with various degrees of success with the Soave equation of state, and Boublik-Alder-Chen-Kreglewski equation of state.
- Research Organization:
- Purdue Univ., Lafayette, IN (USA). School of Chemical Engineering
- OSTI ID:
- 6813201
- Report Number(s):
- EPRI-AP-1593
- Country of Publication:
- United States
- Language:
- English
Similar Records
Phase behavior of carbon dioxide in admixture with n-butane, n-decane, n-butylcyclohexane, and n-butylbenzene at 344 K and approximately 9600 kPa
Solubilities of nitrogen in heavy normal paraffins from 323 to 423 K at pressures to 18.0 MPa
Related Subjects
COAL LIQUEFACTION
EQUILIBRIUM
PHASE STUDIES
ALKANES
AROMATICS
CARBON DIOXIDE
COAL LIQUIDS
CYCLOALKANES
EQUATIONS OF STATE
EXPERIMENTAL DATA
GASES
HYDROCARBONS
HYDROGEN
LIQUIDS
METHANE
MIXTURES
POLYCYCLIC AROMATIC HYDROCARBONS
SOLUBILITY
THERMODYNAMIC PROPERTIES
VAPOR PRESSURE
VAPORS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
DATA
DISPERSIONS
ELEMENTS
EQUATIONS
FLUIDS
INFORMATION
LIQUEFACTION
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
THERMOCHEMICAL PROCESSES
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction
010600 - Coal
Lignite
& Peat- Properties & Composition