(P, x) vapor-liquid equilibrium (VLE) data for the (O2 + C3H8) binary system were measured using a static-analytic method coupled to a gas chromatograph analysis at temperatures of (110.22, 120.13, 130.58, and 139.95) K. Parameters of a proposed thermodynamic profile were adjusted on the basis of experimental VLE data determined in this work, allowing a complete isothermal phase diagram for this hazardous system to be obtained. The vapor-liquid-liquid equilibrium (VLLE) thermodynamic behavior was predicted by modeling and then confirmed by visual observations. On the basis of this work, solubility values of propane in liquid oxygen can be deduced for both the propane-lean and propane-rich liquid phases at temperatures above the melting temperature of pure propane. The device allowing these data to be measured for such a hazardous mixture is also presented, as are the accuracies of the measurements.
Compounds
#
Formula
Name
1
O2
oxygen
2
C3H8
propane
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
2
1
Vapor or sublimation pressure, kPa ; Liquid mixture 2
Temperature, K; Liquid mixture 2
Mole fraction - 1; Liquid mixture 2
Liquid mixture 2
Gas
CCELL:UFactor:2
8
POMD
2
1
Vapor or sublimation pressure, kPa ; Liquid mixture 1