ABSTRACT

The vapor-liquid equilibria (VLE) for the carbon dioxide + octane, and carbon dioxide + decane systems were measured from (322 to 372) K and (319 to 372) K, respectively. The measurements were carried out with a static-type apparatus connected online to a gas chromatograph. A good agreement was found between the experimental measurements for the studied systems and those reported in the literature at 348 and 344 K for the carbon dioxide + octane and carbon dioxide + decane systems, respectively. Both systems were correlated using the Peng-Robinson equation of state with classical and Wong-Sandler mixing rules. The best VLE representation was obtained using the Wong-Sandler mixing rule with an absolute average deviation less than 1.8 % and 0.0020 mole fraction for pressure and equilibrium compositions, respectively.

Compounds

#	Formula	Name
1	C8H18	octane
2	C10H22	decane
3	CO2	carbon dioxide

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 3	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 3; Liquid Temperature, K; Liquid	Liquid Gas	CCELL:UFactor:8	28
POMD	1 3	Mole fraction - 3 ; Gas	Mole fraction - 3; Liquid Temperature, K; Gas	Gas Liquid	Chromatography	28
POMD	2 3	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 3; Liquid Temperature, K; Liquid	Liquid Gas	CCELL:UFactor:8	29
POMD	2 3	Mole fraction - 3 ; Gas	Mole fraction - 3; Liquid Temperature, K; Gas	Gas Liquid	Chromatography	29

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Experimental Vapor-Liquid Equilibria for the Carbon Dioxide + Octane and Carbon Dioxide + Decane Systems

Jimenez-Gallegos, R., Galicia-Luna, L. A., Elizalde-Solis, O.

ABSTRACT