Application of an extended Lee-Kesler corresponding-states technique to prediction of vapor-liquid equilibria in multicomponent mixtures containing polar components

Conference · Wed Mar 01 00:00:00 EST 1989 · International Journal of Thermophysics; (USA)

OSTI ID:5573754

Johnson, J K; Rowley, R L ^[1]

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1. Brigham Young Univ., Provo, UT (USA)

Mixing rules for an extended Lee-Kesler (ELK) corresponding-states method for prediction of thermodynamic properties are presented. The mixing rules, which do not contain adjustable parameters, permit calculation of vapor-liquid equilibria in mixtures containing one or more polar components. While a single heat-of-mixing datum may be included for strongly associating components, generally only pure component properties are used in the calculations. A comparison of calculated bubble-point pressures and equilibrium vaporization ratios to experimental values is made for 26 ternary mixtures (791 points) and 5 quaternary mixtures (175 points). Bubble-point pressures are predicted quite well with ELK (9.1% AAD for ternaries and 7.9% for quaternaries). Composition predictions are difficult to compare in multicomponent systems, but ELK predictions appear to be acceptable on both a system-by-system and an overall AAD basis.

• OSTI ID: 5573754
• Report Number(s): CONF-880606-; CODEN: IJTHD
• Journal Information: International Journal of Thermophysics; (USA), Vol. 10:2; Conference: 10. symposium on thermophysical properties, Gaithersburg, MD (USA), 20-23 Jun 1988; ISSN 0195-928X
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
MIXTURES
EQUILIBRIUM
THERMODYNAMIC PROPERTIES
FORECASTING
ACETONE
BENZENE
BUBBLE GROWTH
CARBON TETRACHLORIDE
COMPRESSIBILITY
CYCLOHEXANE
ETHANOL
LIQUIDS
MATHEMATICAL MODELS
METHANOL
METHYL ACETATE
MIXING HEAT
PHASE DIAGRAMS
PHASE STUDIES
POLAR COMPOUNDS
PRESSURE DEPENDENCE
PROPANOLS
TOLUENE
TRANSITION TEMPERATURE
TWO-PHASE FLOW
VAPORS
ACETIC ACID ESTERS
ALCOHOLS
ALKANES
ALKYLATED AROMATICS
AROMATICS
CARBOXYLIC ACID ESTERS
CHLORINATED ALIPHATIC HYDROCARBONS
CYCLOALKANES
DIAGRAMS
DISPERSIONS
ENTHALPY
ESTERS
FLUID FLOW
FLUIDS
GASES
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROCARBONS
HYDROXY COMPOUNDS
KETONES
MECHANICAL PROPERTIES
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHYSICAL PROPERTIES
400201* - Chemical & Physicochemical Properties