ABSTRACT

The gamma-valerolactone (GVL) has been proposed as a biomass-based platform molecule. However its vapor-liquid equilibrium has not been exhaustively studied yet. Antoine constants of GVL were determined and vapor-liquid equilibrium (VLE) data for water(1) GVL(2) binary system were measured at atmospheric and reduced (50.66 and 10.1 kPa) pressures. The thermodynamic consistency were investigated by applying Herrington's area test. It was established that no azeotropic mixture was formed for water-GVL system in the full concentration range. Data were regressed using ChemCAD Software in order to generate binary interaction parameters for Wilson, NRTL, and UNIQUAC activity coefficient models. Good agreements between calculated and experimental VLE data were obtained.

Compounds

#	Formula	Name
1	H2O	water
2	C5H8O2	.gamma.-valerolactone
3	CH4O	methanol

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	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	2
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	3
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	17
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	2
POMD	3	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	5
POMD	2 1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	28
POMD	2 1	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Temperature, K; Liquid		Gas Liquid	from refractive indices	42
POMD	2 1	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	42
POMD	3 1	Mole fraction - 3 ; Gas	Mole fraction - 3; Liquid Temperature, K; Liquid		Gas Liquid	from refractive indices	16
POMD	3 1	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	16

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

Vapor-Liquid Equilibrium Study of the Gamma- Valerolactone-Water Binary System

Havasi, D.[David], Mizsey, P.[Peter], Mika, L. T.[Laszlo T.]

ABSTRACT