TY - JOUR
T1 - Vapor-Liquid Equilibrium of Ethanol + Sulfur Dioxide and Ethanol + Water + Sulfur Dioxide at Six Temperatures
AU - Pokki, Juha-Pekka
AU - Uusi-Kyyny, Petri
AU - Alopaeus, Ville
N1 - Publisher Copyright:
© 2024 American Chemical Society
PY - 2024/10/10
Y1 - 2024/10/10
N2 - Binary isothermal vapor-liquid equilibrium (VLE) of ethanol and sulfur dioxide (SO2) at six temperatures (303-353 K) was measured. The systems were modeled using the non-random two-liquid (NRTL)-Hayden-O’Connell (HOC) model. The NRTL parameters were optimized using Barker’s data reduction method. Ternary isothermal VLE of ethanol, water, and SO2 at six temperatures (303-353 K) was measured. The binary isothermal VLE of SO2 and water in the dilute range of SO2 and liquid-liquid equilibrium (LLE) were found in the literature, and the NRTL parameters were optimized for the system. In addition, the isothermal VLE for ethanol and water found in the literature was used to evaluate the default parameters of Aspen Plus and found accurate. The binary LLE of water and SO2 was essential in modeling the phenomenologically proper phase behavior. With the optimized parameters, it was possible to calculate the LLE and vapor-liquid-liquid equilibrium (VLLE) regions of the ternary system. The comparison of the model and measurements to the literature were presented, and very good accuracy was found.
AB - Binary isothermal vapor-liquid equilibrium (VLE) of ethanol and sulfur dioxide (SO2) at six temperatures (303-353 K) was measured. The systems were modeled using the non-random two-liquid (NRTL)-Hayden-O’Connell (HOC) model. The NRTL parameters were optimized using Barker’s data reduction method. Ternary isothermal VLE of ethanol, water, and SO2 at six temperatures (303-353 K) was measured. The binary isothermal VLE of SO2 and water in the dilute range of SO2 and liquid-liquid equilibrium (LLE) were found in the literature, and the NRTL parameters were optimized for the system. In addition, the isothermal VLE for ethanol and water found in the literature was used to evaluate the default parameters of Aspen Plus and found accurate. The binary LLE of water and SO2 was essential in modeling the phenomenologically proper phase behavior. With the optimized parameters, it was possible to calculate the LLE and vapor-liquid-liquid equilibrium (VLLE) regions of the ternary system. The comparison of the model and measurements to the literature were presented, and very good accuracy was found.
UR - http://www.scopus.com/inward/record.url?scp=85192191156&partnerID=8YFLogxK
U2 - 10.1021/acs.jced.3c00766
DO - 10.1021/acs.jced.3c00766
M3 - Article
AN - SCOPUS:85192191156
SN - 0021-9568
VL - 69
SP - 3506
EP - 3520
JO - Journal of Chemical and Engineering Data
JF - Journal of Chemical and Engineering Data
IS - 10
ER -