ABSTRACT

Bio-based products and processes were favored recently, because shifting towards a more sustainable economy might be a long-term solution for global challenges. Within this context, gamma-valerolactone emerges as a sustainable alternative for industrially relevant solvents and as a potential additive for liquid fuels. Yet, few data have been published regarding the solubility behavior of binary mixtures containing this molecule, which is crucial for assessing its possible applications. Hence, this work determined the mutual solubility of gamma-valerolactone and n-tetradecane, a representative molecule of diesel, using the cloud point method at temperatures between 288.15 K and 333.15 K, which guarantees compounds stability. This method was also employed to determine the lactone solubility in commercial diesel at selected temperatures. Results were correlated by the NRTL and UNIQUAC models, which succeeded in representing experimental data but could not predict the upper critical solution temperature.

Compounds

#	Formula	Name
1	C5H8O2	.gamma.-valerolactone
2	C14H30	tetradecane

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	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	1 2	Mass fraction - 1 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	10
POMD	1 2	Mass fraction - 1 ; Liquid mixture 2	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Titration method	10

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Solubility behavior of .gamma.-valerolactone + n-tetradecane or diesel mixtures at different temperatures

Correa, Lucas Farias Falcchi, Soares, Rafael de Pelegrini, Ceriani, Roberta

ABSTRACT