ABSTRACT

This work reports solubility data of methane and carbon dioxide in 1,2-propylene glycol and the Henry s law constant of each solute in the studied solvent at saturation pressure. The measurements were performed at 303, 323, 373, 398 and 423.15 K and pressures up to 4.5 MPa for carbon dioxide solubility and pressures up to 12.1 MPa for methane solubility. The experiments were performed in an autoclave type phase equilibrium apparatus using the total pressure method (synthetic method). All investigated systems show an increase of gas-solubility with the increase of pressure. A decrease of carbon dioxide solubility with the increase of temperature and an increase of methane solubility with the increase of temperature was observed. From the variation of solubility with temperature, partial molar enthalpy and entropy change of the solute for each mixture were calculated.

Compounds

#	Formula	Name
1	C3H8O2	1,2-propanediol
2	CH4	methane
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	Constraint	Phase	Method	#Points
POMD	1 2	Henry's Law constant (mole fraction scale), kPa - 2 ; Liquid	Temperature, K; Liquid	Mole fraction - 2; Liquid	Liquid Gas	Chromatography	5
POMD	1 2	Mole fraction - 2 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid Gas	Synthetic Method	25
POMD	1 3	Henry's Law constant (mole fraction scale), kPa - 3 ; Liquid	Temperature, K; Liquid	Mole fraction - 3; Liquid	Liquid Gas	Chromatography	5
POMD	1 3	Mole fraction - 3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid Gas	Synthetic Method	20

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Methane and carbon dioxide solubility in 1,2-propylene glycol at temperatures ranging from 303 to 423 K and pressures up to 12 MPa

Galvao, A. C., Francesconi, A. Z.[Artur Z.]

ABSTRACT