ABSTRACT

Isobaric vapor-liquid equilibrium (VLE) data of 2-ethylthiophene and n-octane binary system were measured at 101.33 kPa with a modified Rose-Williams still. Gas chromatography was used to analyze compositions of the samples from the vapor-liquid equilibrium system. The VLE measurement passed the thermodynamic consistency test proposed by Herington and no azeotropic behavior was found. The experimental data were correlated by Wilson, the non-random two-liquid (NRTL) and universal quasi-chemical activity coefficient (UNIQUAC) models, respectively. The corresponding parameters for the three models were obtained. Results showed that the Wilson model gave better predictions than NRTL andUNIQUAC models.

Compounds

#	Formula	Name
1	C8H18	octane
2	C6H8S	2-ethylthiophene

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	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	1
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	1
POMD	1 2	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	16
POMD	1 2	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Gas Liquid	Chromatography	16

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Isobaric vapor-liquid equilibrium for binary systemof 2-ethylthiophene + n-octane at 101.33 kPa

Wang, X.[Xue], Li, Y.[Yonghong]

ABSTRACT