ABSTRACT

Vapor-liquid (VLE) data for the carbon dioxide + 1,2-dimethoxyethane binary system at (313.15, 323.15, 333.15, and 343.15) K up to 10.69 MPa and the critical curve are reported for the first time. Phase behavior measurements were made in a high-pressure visual cell with variable volume, using a static-analytical method with phases sampling by rapid online sample injectors (ROLSI) coupled to a gas chromatograph (GC) for analysis. The new measured data for carbon dioxide + 1,2-dimethoxyethane system were modeled with two cubic equations of state (EoS), namely the Peng-Robinson (PR), and Soave-Redlich-Kwong (SRK), coupled with both classical van der Waals (two-parameter conventional mixing rule, 2PCMR) and Gibbs excess energy mixing rules (HV-residual UNIQUAC, MHV1, MHV2, COMB1, COMB2).

Compounds

#	Formula	Name
1	CO2	carbon dioxide
2	C4H10O2	1,2-dimethoxyethane

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 2	Vapor or sublimation pressure, kPa ; Gas	Temperature, K; Liquid Mole fraction - 1; Liquid	Gas Liquid	Closed cell (Static) method	32
POMD	1 2	Mole fraction - 1 ; Gas	Temperature, K; Liquid Mole fraction - 1; Liquid	Gas Liquid	Chromatography	32
POMD	1 2	Critical temperature, K ; Liquid	Mole fraction - 1; Liquid	Liquid Gas	Visual observation in an unstirred cell	17
POMD	1 2	Critical pressure, kPa ; Liquid	Mole fraction - 1; Liquid	Liquid Gas	visual observation	17

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Phase equilibria of CO2 + 1,2-dimethoxyethane at high-pressures

Sima, Sergiu, Secuianu, Catinca, Feroiu, Viorel

ABSTRACT