Thermodynamic and transport properties for polar coal mixtures. Technical progress report, April 1-June 30, 1986

Technical Report · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5332150

Stiel, L I

Additional data for the infinite dilution activity coefficient, ..gamma../sub 1/infinity, have been obtained for nonpolar and polar solutes in 2-methyl naphthalene at 60/sup 0/C by gas chromatographic procedures. Solid 2-methyl naphthalene was dissolved in n-hexane solvent and coated onto Chromosorb W DMCS supports by evaporation of the solvent. The experimental data are presented in Table I along with values obtained previously for a number of the solutes in 1-methyl naphthalene. It can be seen that with the exception of tetrahydrofuran the values of ..gamma../sub 1/infinity for the nonpolar and polar solutes are slightly higher in 2-methyl naphthalene. For nonpolar mixtures containing molecules of large molecular size, including n-decane and hexadecane, we have been investigating the application of linear relationships in the acentric factor for the calculation of phase equilibria and other properties. For polar coal fluids with large acentric factors and low polarity factors, these analyses indicate that the relationships of Lin and Stiel for the molecular parameters in terms of ..omega.. and chi result in lower than optimum values of a* and epsilon/kappa. Based on these results, we are using data for 1-methyl-naphthalene, 2-methyl-naphthalene, tetralin, diphenylmethane, quinoline, and aniline to develop improved correlations for the molecular parameters of polar substances. 7 refs., 2 figs., 3 tabs.

• Research Organization: Polytechnic Inst. of New York, Brooklyn (USA)
• DOE Contract Number: FG22-84PC70790
• OSTI ID: 5332150
• Report Number(s): DOE/PC/70790-T7; ON: DE86014893
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ACETIC ACID ESTERS
ACETONE
ALCOHOLS
ALKANES
ALKYLATED AROMATICS
AROMATICS
BENZENE
CARBON TETRACHLORIDE
CARBOXYLIC ACID ESTERS
CHLORINATED ALIPHATIC HYDROCARBONS
CHLOROFORM
CHROMATOGRAPHY
COAL LIQUIDS
CONDENSED AROMATICS
CYCLOALKANES
CYCLOHEXANE
DATA
ESTERS
ETHANOL
EXPERIMENTAL DATA
FLUIDS
FURANS
GAS CHROMATOGRAPHY
HALOGENATED ALIPHATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
HEXANE
HYDROCARBONS
HYDROXY COMPOUNDS
INFORMATION
KETONES
LIQUIDS
METHYL ACETATE
METHYLNAPHTHALENES
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PROPANOLS
SEPARATION PROCESSES
SOLUBILITY
SOLVENT PROPERTIES
TETRAHYDROFURAN
THERMODYNAMIC PROPERTIES