Phase Equilibria of {Carbon Dioxide + Acetone + Dimethyl Sulfoxide} Systems: Experimental Data and Thermodynamic Modeling

Dimethyl sulfoxide (DMSO) and acetone are frequently used in supercritical antisolvent (SAS) processes, since they have very different physical properties and have complex phase behavior. This paper reports experimental phase equilibrium data for {CO 2  + DMSO} and {CO 2  + acetone + DMSO} systems....

Full description

Saved in:
Bibliographic Details
Published in:Journal of solution chemistry 2022-10, Vol.51 (10), p.1292-1309
Main Authors: Bacicheti, Jacqueline Mansano Ortega, Oliveira, José Augusto, Barros, Thiago Vinicius, Ferreira-Pinto, Leandro, Castillo, Pedro Felipe Arce, Cabral, Vladimir Ferreira, Cardozo-Filho, Lucio
Format: Article
Language:English
Subjects:
Acetone
Carbon dioxide
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Deviation
Dimethyl sulfoxide
Equilibrium
Geochemistry
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Liquid-liquid equilibrium
Liquid-vapor equilibrium
Oceanography
Phase equilibria
Phase transitions
Physical Chemistry
Physical properties
Sulfoxides
Ternary systems
Thermodynamic models
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Dimethyl sulfoxide (DMSO) and acetone are frequently used in supercritical antisolvent (SAS) processes, since they have very different physical properties and have complex phase behavior. This paper reports experimental phase equilibrium data for {CO 2  + DMSO} and {CO 2  + acetone + DMSO} systems. The static synthetic method was employed to obtain phase equilibrium behavior in pressures up to 12.1 MPa, temperature range between 313.15 and 343.15 K, the concentration of 5.5 mol·kg −1 (solute: DMSO; solvent: acetone) on a CO 2 -free basis, and CO 2 mole fractions between 0.652 and 0.953. The experimental data measured here presented transitions of VLE (vapor–liquid equilibrium) and LLE (liquid–liquid equilibrium) phases. In this work, the effects of association between molecules are considered. Thus, the PC-SAFT EoS was used to model the experimental data and phase transitions, and the pressure deviation between experimental and calculated data for the binary and ternary system was 0.81% and 0.51%, respectively. The percentage average absolute relative deviation (%AARD) for {CO 2  + DMSO}, {CO 2  + acetone} and {DMSO + acetone} system was 0.57, 0.89 and 0.29, respectively.
ISSN:0095-9782
1572-8927
DOI:10.1007/s10953-022-01196-6