Physical-property estimation for coal liquids
Conference
·
OSTI ID:6412970
Improved design of coal liquefaction facilities is dependent on the availability of accurate thermodynamic property estimation methods. However, since coal liquids are mixtures of a large number of pure components bound together in a complex heteroatomic group structure; traditional methods for estimating thermodynamic properties are often inapplicable. Three sets of physical properties correlations-Cavett (1962), Wilson (1981), and Starling (1980)-have been used in conjunction with the ASPEN simulator (MIT, 1981) to critically evaluate against experimental vapor-liquid equilibrium data the utility of ASPEN for simulating coal liquid separations. All three correlations were found to give close correspondence between predicted and experimental K-values for temperatures between 478 and 589 K at 13.89 MPa except for heavy boiling fractions. It was also found for the limited data examined from the SRC-II PDU vacuum flash unit that using Wilson's correlations with the Redlich-Kwong-Soave method in ASPEN predicts vapor mole fractions close to experimental results. The utility of ASPEN for coal liquids has thus been demonstrated. Examination of experimental data indicates that better boiling point characterization data, including improvements in measurements of specific gravity and molecular weight, may further improve simulation capabilities.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6412970
- Report Number(s):
- CONF-821106-15; ON: DE83003483
- Country of Publication:
- United States
- Language:
- English
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Thesis/Dissertation
·
Thu Dec 31 23:00:00 EST 1987
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OSTI ID:6919109
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Technical Report
·
Wed Oct 01 00:00:00 EDT 1980
·
OSTI ID:7182250
Vapor-liquid equilibria for the difluoromethane (HFC-32) + 1,1,1-trifluoroethane (HFC-143a) system
Journal Article
·
Mon Jan 31 23:00:00 EST 2000
· Journal of Chemical and Engineering Data
·
OSTI ID:20014552
Related Subjects
01 COAL, LIGNITE, AND PEAT
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600* -- Coal
Lignite
& Peat-- Properties & Composition
BOILING POINTS
COAL LIQUEFACTION
COAL LIQUIDS
CORRELATIONS
DATA
DENSITY
EQUILIBRIUM
EXPERIMENTAL DATA
FLUIDS
GASES
INFORMATION
LIQUEFACTION
LIQUIDS
MOLECULAR WEIGHT
NUMERICAL DATA
PHYSICAL PROPERTIES
SEPARATION PROCESSES
SIMULATION
SRC-II PROCESS
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VAPORS
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600* -- Coal
Lignite
& Peat-- Properties & Composition
BOILING POINTS
COAL LIQUEFACTION
COAL LIQUIDS
CORRELATIONS
DATA
DENSITY
EQUILIBRIUM
EXPERIMENTAL DATA
FLUIDS
GASES
INFORMATION
LIQUEFACTION
LIQUIDS
MOLECULAR WEIGHT
NUMERICAL DATA
PHYSICAL PROPERTIES
SEPARATION PROCESSES
SIMULATION
SRC-II PROCESS
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VAPORS