ABSTRACT

(Vapour + liquid) equilibrium (P x y) data are reported at three isotherms for the (propane + decafluorobutane), and (1-butene + decafluorobutane) binary systems. The range of temperatures extended from 312.92 K to 342.94 K. An apparatus based on the "static-analytic" method, which had two electromagnetic ROLSI(TM) samplers, for repeatable and reliable equilibrium phase sampling and handling, was used to undertake the measurements. The experimental values were correlated with the "PR-MC-NRTL-WS" model which comprised the Mathias-Copeman alpha function, Wong-Sandler mixing rule, and NRTL local composition model which were incorporated into the Peng-Robinson equation of state. Maximum pressure azeotropy is observed for both systems at all investigated temperatures. Liquid liquid immiscibility was not observed over the range of temperatures studied.

Compounds

#	Formula	Name
1	C4F10	decafluorobutane
2	C3H8	propane
3	C4H8	1-butene

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	17
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	9
POMD	2 1	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 2; Liquid Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	37
POMD	2 1	Mole fraction - 2 ; Gas	Mole fraction - 2; Liquid Temperature, K; Liquid	Gas Liquid	Chromatography	37
POMD	2 1	Azeotropic pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	By P(X) extreme	3
POMD	2 1	Azeotropic composition: mole fraction - 2 ; Liquid	Temperature, K; Liquid	Liquid Gas	By T or P extreme	3
POMD	3 1	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 3; Liquid Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	38
POMD	3 1	Mole fraction - 3 ; Gas	Mole fraction - 3; Liquid Temperature, K; Liquid	Gas Liquid	Chromatography	38
POMD	3 1	Azeotropic pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	By P(X) extreme	3
POMD	3 1	Azeotropic composition: mole fraction - 3 ; Liquid	Temperature, K; Liquid	Liquid Gas	By T or P extreme	3

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Experimental (vapour + liquid) equilibrium data and modelling for binary mixtures of decafluorobutane with propane and 1-butene

Subramoney, S. C.[Shalendra Clinton], Naidoo, P.[Paramespri], Valtz, A.[Alain], Coquelet, C.[Christophe], Richon, D.[Dominique], Ramjugernath, D.[Deresh]

ABSTRACT