Measurements and modeling of LLE and HE for (methanol + 2,4,4-trimethyl-1-pentene), and LLE for (water + methanol + 2,4,4-trimethyl-1-pentene)

Abstract

Excess enthalpy (HE) for the binary system of (methanol+2,4,4-trimethyl-1-pentene) (TMP-1) is reported at T=298.15K and 101kPa. (Liquid+liquid) equilibrium (LLE) for the same system is measured at atmospheric pressure (101kPa). LLE for ternary system of (water+methanol+2,4,4-trimethyl-1-pentene) is measured at T=(283 and 298)K.The parameters of Non-Random Two-Liquid (NRTL) model were regressed for the system of (methanol+TMP-1) using HE and LLE from this work combined with isobaric (101kPa) and isothermal (T=331K) VLE data from literature. The NRTL parameters for the binary system of (water+TMP-1) were fitted to a binary LLE data set from literature. NRTL parameters for the binary system of (water+methanol) were taken from ASPEN PLUS. The LLE for the ternary system was modeled by the three binary NRTL interaction parameters systems. The binary and ternary models were compared against the measured data.