ABSTRACT

Isobaric vapor liquid equilibria (VLE) data for the ethylene glycol + 1,2-propylene glycol, 1,2-propylene glycol + 1,3-butanediol, 1,2-propylene glycol + 1,2-butanediol, and ethylene glycol + 1,3-butanediol binary systems have been measured at 10.00 kPa using a VLE recirculating still. The experimental VLE data were correlated with nonrandom two-liquid (NRTL), Wilson, and universal quasichemical (UNIQUAC) activity coefficient models. The results showed that the calculated values of the vapor-phase mole fraction and boiling temperature by the NRTL, Wilson, and UNIQUAC models agreed well with the experimental data. The experimental data were checked with the Herington consistency test and Van Ness test method, which also showed thermodynamic consistency.

Compounds

#	Formula	Name
1	C2H6O2	1,2-ethanediol
2	C3H8O2	1,2-propanediol
3	C4H10O2	1,2-butanediol
4	C4H10O2	1,3-butanediol

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	EBULLIO:UFactor:8	15
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Ebulliometric method (Recirculating still)	1
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	EBULLIO:UFactor:8	21
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	EBULLIO:UFactor:8	22
POMD	2 4	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	20
POMD	2 4	Mole fraction - 2 ; Gas	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Gas Liquid	Chromatography	20
POMD	1 4	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	23
POMD	1 4	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Gas Liquid	Chromatography	23
POMD	2 1	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	20
POMD	2 1	Mole fraction - 2 ; Gas	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Gas Liquid	Chromatography	20
POMD	2 3	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	20
POMD	2 3	Mole fraction - 2 ; Gas	Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Gas Liquid	Chromatography	20

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

Isobaric Vapor Liquid Equilibria for the Binary Mixtures Composed of Ethylene Glycol, 1,2-Propylene Glycol, 1,2-Butanediol, and 1,3-Butanediol at 10.00 kPa

Zhang, L.[Luhong], Wu, W.[Weihua], Sun, Y.[Yongli], Li, L.[Lingqiao], Jiang, B.[Bin], Li, X.[Xingang], Yang, N.[Na], Ding, H.[Hui]

ABSTRACT