ABSTRACT

Isobaric vapor-liquid equilibrium (VLE) data for the system (ethyl myristate + ethyl palmitate) were measured at 0.5, 1.0 and 1.5 kPa with a VLE modified Othmer still. The esters used in this study are the major components of biodiesel. Thermodynamic consistency of the experimental data was checked both with the Herington consistency test and point consistency test of Van Ness Test, which ensure the reliability of experimental data. Furthermore, the experimental VLE data were regressed with Nonrandom Two-Liquid (NRTL) activity coefficient model and predicted by UNIFAC and Dortmund (modified UNIFAC) models. The results show that the calculated values of the vapor-phase mole fraction and boiling temperature by NRTL, UNIFAC models and Dortmund model agree well with the experimental data.

Compounds

#	Formula	Name
1	C16H32O2	ethyl tetradecanoate
2	C18H36O2	ethyl hexadecanoate

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	Phase	Method	#Points
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	11
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	11
POMD	1 2	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid Pressure, kPa; Gas	Liquid Gas	Ebulliometric method (Recirculating still)	42
POMD	1 2	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Pressure, kPa; Gas	Gas Liquid	Chromatography	42

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Isobaric vapor liquid equilibrium for binary system of ethyl myristate + ethyl palmitate at 0.5, 1.0 and 1.5 kPa

Tang, G.[Guiwen], Ding, H.[Hui], Hou, J.[Jun], Xu, S.[Shimin]

ABSTRACT