Measurements and correlations of isothermal (vapour + liquid) equilibrium for the {isobutane (R600a) + cis-1,3,3,3-tetrafluoropropene (R1234ze(Z))} system at temperatures from (303.150 to 353.150) K
作者： Xuedong Zhang , Xueqiang Dong , Hao Guo , Maoqiong Gong , Jun Shen
DOI: 10.1016/J.JCT.2016.08.031
关键词:
摘要: Abstract In this paper, the (vapour + liquid) phase equilibrium for (isobutane + cis-1,3,3,3-tetrafluoropropene) system was measured by static-analytical method at six temperatures from (303.150 to 353.150) K. The combined standard uncertainties of temperature, pressure and composition were less than ±5 mK, ±0.0005 MPa ±0.005, respectively. experimental results correlated means Peng–Robison (PR) equation state (EoS) with Van der Waals (VDW) mixing rule Huron–Vidal (HV) involving non-random two-liquid (NRTL) activity coefficient model. Good consistency is found both models. average absolute relative deviations are between 0.44% 0.58% PR-VDW model, while 0.12% PR-HV-NRTL vapour mole fraction lay 0.007 0.008 0.004 show that model has better performance binary system. Obviously an azeotropic behaviour can be observed
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