ABSTRACT

This work aims to study the vapor liquid equilibrium (VLE) of the higher alcohols present in the ethanol distillation process. The VLE data for binary and ternary systems composed by 2-propanol, 2-methyl-1-propanol, and 3-methyl-1-butanol were measured at pressures of 101.3 kPa and 74.7 kPa. An ebulliometer apparatus (Fisher) was used to VLE data measurements, and the compositions of vapor and liquid phases were determined by gas chromatography. The VLE data were tested for thermodynamic consistency using the tests of Van Ness modified by Fredenslund and the area test. Binary interaction parameters for the liquid phase activity coefficients were adjusted using the Wilson, nonrandom two-liquid (NRTL), or universal quasichemical (UNIQUAC) models, and the vapor phase fugacity coefficients were calculated using the virial equation with the Hayden and O Connell approach.

Compounds

#	Formula	Name
1	C3H8O	propan-2-ol
2	C4H10O	2-methyl-1-propanol
3	C5H12O	3-methylbutan-1-ol

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	11
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	11
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	EBULLIO:UFactor:8	3
POMD	2 3	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid Gas	EBULLIO:UFactor:8	14
POMD	2 3	Mole fraction - 2 ; Gas	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Gas Liquid	CHROM:UFactor:4	14
POMD	1 3	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid Pressure, kPa; Liquid		Liquid Gas	EBULLIO:UFactor:16	27
POMD	1 3	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Pressure, kPa; Liquid		Gas Liquid	CHROM:UFactor:4	27
POMD	1 2 3	Mole fraction - 2 ; Liquid Mole fraction - 2 ; Gas Mole fraction - 1 ; Gas	Temperature, K; Liquid Pressure, kPa; Liquid Mole fraction - 1; Liquid		Liquid Gas	CHROM:UFactor:4 CHROM:UFactor:4 CHROM:UFactor:4	48

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Vapor Liquid Equilibrium of Mixtures Containing the Following Higher Alcohols: 2-Propanol, 2-Methyl-1-propanol, and 3-Methyl-1-butanol

Dias, T. P. V. B.[Telma P. V. B.], Fonseca, L. A. A. P.[Luciana A. A. P.], Ruiz, M. C.[Maira C.], Batista, F. R. M.[Fabio R. M.], Batista, E. A. C.[Eduardo A. C.], Meirelles, A. J. A.[Antonio J. A.]

ABSTRACT