Isothermal Vapor-Liquid Equilibria for Methanol + Ethanol + Water, Methanol + Water, and Ethanol + Water

Abstract

Isothermal vapor-liquid equilibria were measured for the ternary system methanol + ethanol + water and its constituent binary systems of methanol + water and ethanol + water at 323.15, 328.15, and 333.15 K. The apparatus that was used made it possible to control the measured temperature and total pressure by computer. The experimental binary data were correlated by the NRTL equation. The ternary system was predicted using the binary NRTL parameters with good accuracy.

Thermodynamic properties of {xCH3OH +(1−x)H2O} withx= (1.0000 and 0.4993) in the temperature range from 320K to 420K at pressures up to 200MPa

“…(1) We believe that our sample of CH 3 OH is free from the presence of water. (32) Kurihara et al, (33) and Bao et al, (35) whereas the measurements of Griswold and Wong (34) at T = 373.137 K are lower than the present measurements.…”

“…Williamson; (32) , Kurihara et al; (33) +, Griswold and Wong (34) at T = 373.137 K; , Bao et al (35) for each temperature. The differences in the p s measurements at each temperature are within ±0.5 kPa.…”

Thermodynamic properties of { C2H5OH+(1− )H2O} in the temperature range from 320 K to 420 K at pressures up to 200 MPa

“…Figure 2 shows the deviations from Raoult's law at 0.21 Q x Q 0.27 as a function of temperature, comparing our results with the literature values. (1,(5)(6)(7)(8)10,13,14) Although the temperature dependence at 300 Q (T/K) q 360, where Pemberton and Mash measured, is weak, our results at (T/K) Q 360 show the deviations decrease with increasing temperature.…”

“…(1) at x = (0.2464 to 0.2469); R, Mertl (5) at x = (0.2300 to 0.2520); R, Linderstro m-Lang and Vaslow (6) at x = 0.2561; t, Dornte (7) at x = 0.2515; +, Udovenko and Fatkulina (8) at x = (0.2460 to 0.2670); T, Kurihara et al (10) at x = (0.2506 to 0.2606); r, Griswold et al (13) at x = (0.2370 to 0.2650); w, Barr-David and Dodge (14) at x = (0.2140 to 0.2640). (28) at T = 323.137 K; r, Winnick and Kong (34) at T = 323.137 K; r, Marsh and Richards (35) at T = 328.136 K; q, Westmeier …”

Correlação De Dados De Equilíbrio Líquido-Vapor Para Sistemas Aquosos Com Álcool E Sal Usando O Modelo Uniquac Original

“…c Parâmetros estimados dos dados de ELV etanol+ água (Pemberton e Mash, 1978;Niesen et al, 1986;Kurihara et al, 1993Kurihara et al, , 1995Arce et al, 1996;Navarro-Espinosa et al, 2010;Lai et al 2014). d Parâmetros estimados dos dados de ELV água+NaCl, metanol+água+NaCl e etanol+água+NaCl (Clarke e Glew, 1985;Gmehling, 1997;Yang e Chul et al, 1998;Jödecke et al, 2005), fixando os parâmetros MeOH+EtOH, MeOH+H2O e EtOH+H2O, determinados previamente a partir dos binários a,b,c .…”