ABSTRACT

Isothermal vapor-liquid equilibrium data for the binary mixture of 2,3,3,3-tetrafluoroprop-1-ene (HFO-1234yf) + isobutane (HC-600a) were measured at temperatures from 283.15 K to 323.15 K using a recirculation apparatus. The experimental data were correlated using the Peng-Robinson equation of state with vdW mixing rule and Wong-Sandler mixing rule, respectively. The comparison between the correlation results and experimental data showed a good agreement, and Wong-Sandler mixing rule gave more accurate calculations for this binary system. Azeotropic behavior was found at high mole fraction of HFO-1234yf.

Compounds

#	Formula	Name
1	C3H2F4	2,3,3,3-tetrafluoro-1-propene
2	C4H10	2-methylpropane

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	5
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	5
POMD	2 1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Liquid Gas	Closed cell (Static) method	60
POMD	2 1	Mole fraction - 1 ; Gas	Temperature, K; Liquid Mole fraction - 1; Liquid	Gas Liquid	Chromatography	60
POMD	2 1	Azeotropic composition: mole fraction - 1 ; Liquid	Temperature, K; Liquid	Liquid Gas	By X=Y	5
POMD	2 1	Azeotropic pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	By X=Y	5

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Vapor-liquid equilibria for binary system of 2,3,3,3-tetrafluoroprop-1-ene (HFO-1234yf) + isobutane (HC-600a)

Hu, P. [Peng], Chen, L.-X.[Long-Xiang], Chen, Z.[Ze-shao]

ABSTRACT