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

ABSTRACT

In this work, the solubilities and trans-1-chloro-3,3,3-trifluoropropene (R1233zd(E)) diffusion coefficients of refrigerant in three imidazolium ionic liquids were measured at temperatures from 303.1 to 343.2 K, pressures up to 0.14 MPa. The ionic liquids include 1-hexyl-3-methyl-imidazolium 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide trifluoromethanesulfonate ([HMIM][Tf2N]), ([HMIM][TfO]) and 1-hexyl-3-methyl-imidazolium tetrafluoroborate([HMIM][BF4]). The Non-Random Two-Liquid (NRTL) activity coefficient model was employed to correlate the experimental solubility data successfully, the AAD between the measured data and calculated values for the solubilities of R1233zd(E) in [HMIM][Tf2N], [HMIM][TfO] and [HMIM][BF4] are 3.1 %, 2.5 % and 4.0 %, respectively. The Wilke-Chang equation was used to correlate diffusion coefficients, the relative deviations between experimental results and the values calculated are most within 10 %. Meanwhile, the solubility and diffusivity of refrigerant gases R32, R125, R152a, R161, R143a, R1234yf, R1234ze(E) and R1233zd(E) in ionic liquids [HMIM][Tf2N], [HMIM][TfO] and [HMIM][BF4] were compared and analyzed.