ABSTRACT

In recent years, trans-1,3,3,3-tetrafluoropropene (R1234ze(E)) was proposed as a possible replacement for hydrofluorocarbons. In this work, the vapor-liquid phase equilibrium of R1234ze(E) with three imidazolium ionic liquids (ILs) were measured from (283.15 to 343.15) K based on the isochoric method. The ILs include 1-ethyl-3-methylimidazolium tetrafluoroborate ([Emim][BF4]), 1-hexyl-3-methylimidazolium tetrafluoroborate ([Hmim][BF4]), and 1-octyl-3-methylimidazolium tetrafluoroborate ([Omim][BF4]). The experimental results were correlated using NRTL activity coefficients model. The deviations between experimental data and calculated values for pressure was 1.77 %, 2.07 %, and 2.32 % for R1234ze(E) + [Emim][BF4], + [Hmim][BF4], + [Omim][BF4] systems, respectively.

Compounds

#	Formula	Name
1	CO2	carbon dioxide
2	C3H2F4	trans-1,3,3,3-tetrafluoropropene
3	C6H11BF4N2	1-ethyl-3-methylimidazolium tetrafluoroborate
4	C10H19BF4N2	1-hexyl-3-methylimidazolium tetrafluoroborate
5	C12H23BF4N2	1-methyl-3-octylimidazolium tetrafluoroborate

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 3	Mole fraction - 1 ; Liquid	Pressure, kPa; Liquid	Temperature, K; Liquid	Liquid Gas	Phase equilibration	8
POMD	1 4	Mole fraction - 1 ; Liquid	Pressure, kPa; Liquid	Temperature, K; Liquid	Liquid Gas	Phase equilibration	8
POMD	2 3	Mole fraction - 2 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid Gas	Phase equilibration	49
POMD	2 4	Mole fraction - 2 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid Gas	Phase equilibration	49
POMD	2 5	Mole fraction - 2 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid Gas	Phase equilibration	49

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

Phase Equilibria of trans-1,3,3,3-Tetrafluoropropene with Three Imidazolium Ionic Liquids

Wang, X.[Xiaopo], Zhang, Y.[Yao], Wang, D.[Dongbo], Sun, Y.[Yanjun]

ABSTRACT