Thermodynamic properties for supercritical coal conversion. Quarterly progress report, March 21-June 30, 1985

Technical Report · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5664243

Eckert, C A

Solubility data are now being taken at higher temperatures and for solvents doped with polar entrainers. The solubility data at the higher temperatures show a similar type of behavior as in the lower temperature solvents. The enhanced solubility that results when a polar entrainer is used in the solvent can be correctly predicted (qualitatively) by considering the specific chemical interactions between the functional groups of the entrainer and functional groups of the solutes. The effect of a supercritical solvent upon reacting systems is now being seen. There seems to be some solvent interaction that affects the kinetic rate of the simple dimerization reaction, but more analysis is needed. The results of the first-order reverse reaction should prove useful in determining the effect. Work has continued to determine a method by which the supercritical phase behavior can be predicted. Refinement of the hard-sphere equations has led to strong correlations of the parameters that have predictive power. Development of the lattice-gas model has led to correlation of real experimental data. Because of the fundamental nature of its construction and parameters, further refinement of the lattice-gas could lead to a very universal, predictive method.

• Research Organization: Illinois Univ., Urbana (USA). Dept. of Chemical Engineering
• DOE Contract Number: FG22-84PC70801
• OSTI ID: 5664243
• Report Number(s): DOE/PC/70801-T4; ON: DE85014153
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010407* -- Coal & Coal Products-- Solvent Extraction-- (-1987)
ADDITIVES
ALKENES
BINARY MIXTURES
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
CYCLOALKENES
CYCLOPENTADIENE
DIENES
DIMERIZATION
DISPERSIONS
ENERGY SOURCES
EQUATIONS
EQUATIONS OF STATE
EXTRACTION
FOSSIL FUELS
FUELS
HYDROCARBONS
INTERACTIONS
LIQUEFACTION
MATERIALS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
PHYSICAL PROPERTIES
POLYENES
POLYMERIZATION
SEPARATION PROCESSES
SOLUBILITY
SOLVENT PROPERTIES
SOLVENTS
STRUCTURAL MODELS
SUPERCRITICAL GAS EXTRACTION
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES