ABSTRACT

The phase boundaries of the CO2 + toluene, CO2 + acetone, and CO2 + ethanol binary systems have been measured via a dynamic synthetic method based on a fiber optic reflectometer. We focus on a wide range of concentration of CO2 from 0.2 to 0.9 in mole fraction with temperatures up to 572 K. The results are correlated by the Peng-Robinson equation of state (PR-EOS) with two interaction parameters, which shows that the PREOS can predict the phase boundaries of CO2 + toluene and CO2 + acetone well but cannot predict the phase boundaries of the CO2 + ethanol binary system.

Compounds

#	Formula	Name
1	C7H8	toluene
2	C3H6O	acetone
3	C2H6O	ethanol
4	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 4	Critical pressure, kPa ; Liquid	Mole fraction - 1; Liquid		Liquid Gas	Direct measurement	2
POMD	1 4	Critical temperature, K ; Liquid	Mole fraction - 1; Liquid		Liquid Gas	Visual observation in a stirred cell	2
POMD	1 4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid		Liquid Gas	Closed cell (Static) method	47
POMD	1 4	Vapor or sublimation pressure, kPa ; Gas	Temperature, K; Gas Mole fraction - 1; Gas		Gas Liquid	Closed cell (Static) method	25
POMD	1 4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid		Liquid Gas	Closed cell (Static) method	18
POMD	1 4	Vapor or sublimation pressure, kPa ; Gas	Temperature, K; Gas Mole fraction - 1; Gas		Gas Liquid	Closed cell (Static) method	31
POMD	2 4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid		Liquid Gas	Closed cell (Static) method	42
POMD	2 4	Vapor or sublimation pressure, kPa ; Gas	Temperature, K; Gas Mole fraction - 2; Gas		Gas Liquid	Closed cell (Static) method	36
POMD	2 4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid		Liquid Gas	Closed cell (Static) method	1
POMD	2 4	Vapor or sublimation pressure, kPa ; Gas	Temperature, K; Gas	Mole fraction - 2; Gas	Gas Liquid	Closed cell (Static) method	3
POMD	3 4	Critical pressure, kPa ; Liquid	Mole fraction - 3; Liquid		Liquid Gas	Direct measurement	2
POMD	3 4	Critical temperature, K ; Liquid	Mole fraction - 3; Liquid		Liquid Gas	Visual observation in a stirred cell	2
POMD	3 4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid		Liquid Gas	Closed cell (Static) method	55
POMD	3 4	Vapor or sublimation pressure, kPa ; Gas	Temperature, K; Gas Mole fraction - 3; Gas		Gas Liquid	Closed cell (Static) method	43
POMD	3 4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid		Liquid Gas	Closed cell (Static) method	3
POMD	3 4	Vapor or sublimation pressure, kPa ; Gas	Temperature, K; Gas Mole fraction - 3; Gas		Gas Liquid	Closed cell (Static) method	8

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

Phase Boundaries of CO2 + Toluene, CO2 + Acetone, and CO2 + Ethanol at High Temperatures and High Pressures

Wu, W.[Weize], Ke, J.[Jie], Poliakoff, M.[Martyn]

ABSTRACT