ABSTRACT

Experimental VLE data for long chain n-alkane + naphthenic mixtures are scarce in the open literature. In this study, VLE data for representative binary mixtures of naphthenes with long chain n-alkanes are presented. The selected compounds include two n-alkanes (n-hexadecane and n-eicosane), and three naphthenes (cyclohexane, methylcyclohexane, and ethylcyclohexane). The experimental data are compared with computed bubble pressures using the Peng-Robinson and PC-SAFT equations of state in order to evaluate the accuracy of predictions and to obtain regressed kij values. Expected applications of these contributions include improved phase behavior model accuracy for hydrocarbon production, transport, and refining applications.

Compounds

#	Formula	Name
1	C16H34	hexadecane
2	C20H42	eicosane
3	C6H12	cyclohexane
4	C7H14	methylcyclohexane
5	C8H16	ethylcyclohexane
6	C7H16	heptane
7	C8H18	octane
8	C10H22	decane
9	C12H26	dodecane
10	C6H6	benzene
11	C7H8	toluene

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	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	5
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	7
POMD	5	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	10
POMD	6	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	6
POMD	8	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	10
POMD	9	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	6
POMD	11 4	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 11; Liquid Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	15
POMD	11 3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Mole fraction - 11; Liquid	Liquid Gas	Closed cell (Static) method	8
POMD	3 6	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Mole fraction - 3; Liquid	Liquid Gas	Closed cell (Static) method	3
POMD	10 7	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Mole fraction - 10; Liquid	Liquid Gas	Closed cell (Static) method	5
POMD	1 3	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	55
POMD	1 4	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	65
POMD	1 5	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	70
POMD	2 3	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 2; Liquid Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	16
POMD	2 4	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 2; Liquid Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	23
POMD	2 5	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 2; Liquid Temperature, K; Liquid		Liquid Gas	Closed cell (Static) method	30

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

Bubble Pressure Measurement and Prediction for n-Hexadecane and n-Eicosane + Cyclohexane, Methylcyclohexane, and Ethylcyclohexane Binary Mixtures from 303.15 to 393.15 K

Ahitan, Sourabh, Shaw, John M.

ABSTRACT