ABSTRACT

The infinite dilution activity coefficients for 12 non-polar hydrocarbon solutes in the solvents, monoethylene and diethylene glycol, were measured using the gas-liquid chromatography technique. Presaturation of the carrier gas was required to avoid solvent loss from the chromatographic column during the measurements that were carried out at T = (303.15, 313.15 and 323.15) K for monoethylene glycol and at T = (304.15, 313.15 and 323.15) K for diethylene glycol. The solutes investigated include n-alkanes, 1-alkenes, and cycloalkanes. The new data are compared with the highly scattered data that is available in the open literature. Finally, these highly non-ideal systems are modeled with the GCA-EoS.

Compounds

#	Formula	Name
1	C2H6O2	1,2-ethanediol
2	C4H10O3	diethylene glycol
3	C5H12	pentane
4	C6H14	hexane
5	C7H16	heptane
6	C8H18	octane
7	C9H20	nonane
8	C6H12	hex-1-ene
9	C7H14	1-heptene
10	C8H16	oct-1-ene
11	C9H18	1-nonene
12	C5H10	cyclopentane
13	C6H12	cyclohexane
14	C7H14	methylcyclohexane

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	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	1 3	Activity coefficient - 3 ; Liquid	Temperature, K; Liquid	Mole fraction - 3; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	3 2	Activity coefficient - 3 ; Liquid	Temperature, K; Liquid	Mole fraction - 3; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	1 4	Activity coefficient - 4 ; Liquid	Temperature, K; Liquid	Mole fraction - 4; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	1 5	Activity coefficient - 5 ; Liquid	Temperature, K; Liquid	Mole fraction - 5; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	1 6	Activity coefficient - 6 ; Liquid	Temperature, K; Liquid	Mole fraction - 6; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	1 7	Activity coefficient - 7 ; Liquid	Temperature, K; Liquid	Mole fraction - 7; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	1 8	Activity coefficient - 8 ; Liquid	Temperature, K; Liquid	Mole fraction - 8; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	1 9	Activity coefficient - 9 ; Liquid	Temperature, K; Liquid	Mole fraction - 9; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	1 10	Activity coefficient - 10 ; Liquid	Temperature, K; Liquid	Mole fraction - 10; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	1 11	Activity coefficient - 11 ; Liquid	Temperature, K; Liquid	Mole fraction - 11; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	1 12	Activity coefficient - 12 ; Liquid	Temperature, K; Liquid	Mole fraction - 12; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	1 13	Activity coefficient - 13 ; Liquid	Temperature, K; Liquid	Mole fraction - 13; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	1 14	Activity coefficient - 14 ; Liquid	Temperature, K; Liquid	Mole fraction - 14; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	4 2	Activity coefficient - 4 ; Liquid	Temperature, K; Liquid	Mole fraction - 4; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	2 5	Activity coefficient - 5 ; Liquid	Temperature, K; Liquid	Mole fraction - 5; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	2 6	Activity coefficient - 6 ; Liquid	Temperature, K; Liquid	Mole fraction - 6; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	2 7	Activity coefficient - 7 ; Liquid	Temperature, K; Liquid	Mole fraction - 7; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	2 8	Activity coefficient - 8 ; Liquid	Temperature, K; Liquid	Mole fraction - 8; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	2 9	Activity coefficient - 9 ; Liquid	Temperature, K; Liquid	Mole fraction - 9; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	2 10	Activity coefficient - 10 ; Liquid	Temperature, K; Liquid	Mole fraction - 10; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	2 11	Activity coefficient - 11 ; Liquid	Temperature, K; Liquid	Mole fraction - 11; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	2 12	Activity coefficient - 12 ; Liquid	Temperature, K; Liquid	Mole fraction - 12; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	13 2	Activity coefficient - 13 ; Liquid	Temperature, K; Liquid	Mole fraction - 13; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3
POMD	14 2	Activity coefficient - 14 ; Liquid	Temperature, K; Liquid	Mole fraction - 14; Liquid Pressure, kPa; Liquid	Liquid	Chromatography	3

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Activity coefficients at infinite dilution of hydrocarbons in glycols: Experimental data and thermodynamic modeling with the GCA-EoS

Prieto, M. G.[Mariana Gonzalez], Williams-Wynn, M. D.[Mark D.], Bahadur, I.[Indra], Sanchez, F. A.[Francisco A.], Mohammadi, A. H.[Amir H.], Pereda, S.[Selva], Ramjugernath, D.[Deresh]

ABSTRACT