ABSTRACT

Isothermal vapour liquid equilibrium measurements for the systems of butane with methanol, 2-propanol, 1-butanol, 2-butanol and 2-methyl- 2-propanol were made at 364.5K using a static total pressure apparatus. The obtained pressure temperature total composition (PTz) data were converted into pressure temperature liquid vapour composition (PTxy) form by means of the Barker method. Error analysis was performed on measured and calculated variables. The systems of butane with methanol and 2-propanol showed azeotropic behaviour at 364.5 K. Wilson and NRTL parameters were regressed. The VLE measurements were compared with predictions obtained using the UNIFAC, UNIFAC-Dortmund and COSMO-RS models.

Compounds

#	Formula	Name
1	C4H10	butane
2	CH4O	methanol
3	C3H8O	propan-2-ol
4	C4H10O	butan-1-ol
5	C4H10O	butan-2-ol
6	C4H10O	2-methylpropan-2-ol

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	Closed cell (Static) method	4
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	1
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	1
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	1
POMD	5	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	1
POMD	6	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	1
POMD	2 1	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	27
POMD	2 1	Azeotropic pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	By P(X) extreme	1
POMD	2 1	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid	Temperature, K; Liquid	Gas Liquid	calculated from Barker method	27
POMD	2 1	Azeotropic composition: mole fraction - 1 ; Liquid	Temperature, K; Liquid		Liquid Gas	By X=Y	1
POMD	3 1	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	27
POMD	3 1	Azeotropic pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	By P(X) extreme	1
POMD	3 1	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid	Temperature, K; Liquid	Gas Liquid	calculated by Barker method	27
POMD	3 1	Azeotropic composition: mole fraction - 1 ; Liquid	Temperature, K; Liquid		Liquid Gas	By X=Y	1
POMD	4 1	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	27
POMD	4 1	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid	Temperature, K; Liquid	Gas Liquid	calculated by Barker method	27
POMD	5 1	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	27
POMD	5 1	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid	Temperature, K; Liquid	Gas Liquid	calculated by Barker method	27
POMD	6 1	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	27
POMD	6 1	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid	Temperature, K; Liquid	Gas Liquid	calculated by Barker method	27

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Vapour liquid equilibrium for the systems butane + methanol, +2-propanol, +1-butanol, +2-butanol, +2-methyl-2-propanol at 364.5K

Dell'Era, C.[Claudia], Zaytseva, A.[Anna], Uusi-Kyyny, P.[Petri], Pokki, J. -P.[Juha-Pekka], Pakkanen, M.[Minna], Aittamaa, J.[Juhani]

ABSTRACT