Isothermal vapor-liquid equilibria for 1,1,1,2-tetrafluoroethane + propane and propane + 1,1,1,-trifluoroethane at 283.18 K

Journal Article · Sun Mar 01 04:00:00 EST 1998 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je970191u· OSTI ID:624285

Stryjek, R ^[1]; Bobbo, S; Camporese, R ^[2]

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1. Polish Academy of Sciences, Warsaw (Poland). Inst. of Physical Chemistry
2. National Research Council, Padova (Italy). Inst. of Refrigeration Engineering

Isothermal vapor-liquid equilibria (VLE) for the binary systems 1,1,1,2-tetrafluoroethane (R134a) + propane (R290) and propane + 1,1,1-trifluoroethane (R143a) were measured at 283.18 K using a recirculation apparatus in which the vapor phase was forced through the liquid. The phase composition at equilibrium was measured by gas chromatography, calibrating its response using gravimetrically prepared mixtures. The data were correlated using the Carnahan-Starling-De Santis and Peng-Robinson equations of state. The authors found positive homoazeotropes for R134a (1) + R290 (2) at a pressure P = 1,000.5 kPa and a composition x{sub 1} = 0.386, and for R290 (1) + R143a (2) at P = 796 kPa and x{sub 1} = 0.363. For the R134a + R290 there was a valid consistency with the values reported in the literature.

• OSTI ID: 624285
• Journal Information: Journal of Chemical and Engineering Data, Journal Name: Journal of Chemical and Engineering Data Journal Issue: 2 Vol. 43; ISSN JCEAAX; ISSN 0021-9568
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
40 CHEMISTRY
CHLOROFLUOROCARBONS
EQUATIONS OF STATE
EQUILIBRIUM
EXPERIMENTAL DATA
FLUORINATED ALIPHATIC HYDROCARBONS
MATERIAL SUBSTITUTION
PROPANE
REFRIGERANTS
THERMODYNAMIC PROPERTIES