The vapor–liquid equilibrium for a methanol + methyl palmitate system was measured using a flow-type method at a pressure range of 1.86–8.81 MPa and a temperature range of 493–543 K, which is near the critical temperature of methanol (512.64 K). The mole fractions of methyl palmitate in the vapor phase were nearly zero, and the errors were also close to zero at all temperatures. The measuring errors of the liquid phase were slightly higher than those of the vapor phase. The Soave–Redlich–Kwong equation of state (SRK EOS), the Peng–Robinson equation of state (PR EOS), and the Cubic-Plus-Association equation of state (CPA EOS) combined with the Adachi–Sugie (AS) mixing rule were employed to correlate the measured data. The correlated results are consistent with the measured data. Because of their accuracy and concise calculation, the SRK and PR EOSs are better choices for correlating the methanol + methyl palmitate system when considering the accuracy and conciseness of calculating.
Isothermal (vapour + liquid) equilibrium data for the binary systems of (CO + methyl propionate) and (CO + ethyl propionate) were measured at temperatures of (293.15, 313.15, 333.15, 353.15, and 373.15) K and at elevated pressures up to 10.00 MPa. The measurements were carried out in a cylindrical autoclave with a moveable piston and an observation window. The experimental results were correlated using the Peng–Robinson (PR) equation of state and Peng–Robinson–Stryjek–Vera (PRSV) equation of state with the two-parameter van der Waals II or Panagiotopoulos–Reid mixing rule. The comparisons of the calculation results with experimental values indicate that the PRSV equation of state with van der Waals II mixing rule produced the better correlated results.
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