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Use of the Soave modification of the Redlich-Kwong equation of state for phase equilibrium calculations, systems containing methanol

Journal Article · · Ind. Eng. Chem. Process Des. Dev.; (United States)
DOI:https://doi.org/10.1021/i200022a021· OSTI ID:5760596
; ;
The Soave modification of the Redlich-Kwong equation of state is used to predict phase equilibrium in mixtures found in acid gas removal processes used to clean gases produced from coal. Binary mixture equilibrium calculations compare favorably with data obtained from the literature, provided a temperature-dependent interaction parameter is used in some cases. Predictions of equilibrium behavior in systems containing methanol were satisfactory if the solute composition in the liquid was limited to approximately 5 mol % nitrogen or 30 mol % for the other components. Parameters evaluated, and their correlations with temperature, were used to illustrate predictions of multicomponent system behavior. The results should be applicable in many systems of industrial interest where the concentration is maintained at levels consistent with those found as upper limits on the accuracy of the Soave equation.
Research Organization:
Department of Chemical Engineering, North Carolina State University, Raleigh, North Carolina 27650
OSTI ID:
5760596
Journal Information:
Ind. Eng. Chem. Process Des. Dev.; (United States), Journal Name: Ind. Eng. Chem. Process Des. Dev.; (United States) Vol. 22:3; ISSN IEPDA
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
090210 -- Alcohol Fuels-- Properties-- (1976-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALCOHOLS
BINARY MIXTURES
COAL GAS
COMPUTER CALCULATIONS
CORRELATIONS
DISPERSIONS
ELEMENTS
EQUATIONS
EQUATIONS OF STATE
EQUILIBRIUM
FLUIDS
GASES
HYDROXY COMPOUNDS
INTERACTIONS
LIQUIDS
METHANOL
MIXTURES
NITROGEN
NONMETALS
ORGANIC COMPOUNDS
PHASE STABILITY
PHYSICAL PROPERTIES
PURIFICATION
STABILITY
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
VAPORS