TY - JOUR
T1 - Phase equilibria for {2,3-epoxypropanol (Glycidol) + carbon dioxide} from T = 292 K to T = 343 K at pressures up to 27 MPa
AU - Pereira, P. J.
AU - Azevedo, E. J. S. Gomes de
AU - Nunes da Ponte, M.
N1 - This work was partially supported Junta Nacional de Investigação Científica e Tecnológica.
PY - 1997/1/1
Y1 - 1997/1/1
N2 - Fluid phase equilibria for (carbon dioxide + Glycidol) were studied at temperatures from 292 K to 343 K and pressures up to 27 MPa. Six (vapour + liquid) pressure against composition isotherms, from T = 298 K to T = 343 K, were measured using an analytical method, in the pressure range from 9 MPa to 27 MPa. At lower pressures, the (p, T) projection of the three-phase (liquid + liquid + vapour) equilibrium surface was followed from T = 292 K up to the critical end-point, at T = 309.00 K and p = 7.966 MPa. An attempt to fit several cubic equations of state to the VLE isotherms, using different mixing and combining rules, was most successful for the Soave-van der Waals equation with the Panagiotopoulos-Reid combining rule. This, and other equations of state with good fitting results, were used to predict the behaviour of the system for higher pressures and temperatures than those of this experimental study.
AB - Fluid phase equilibria for (carbon dioxide + Glycidol) were studied at temperatures from 292 K to 343 K and pressures up to 27 MPa. Six (vapour + liquid) pressure against composition isotherms, from T = 298 K to T = 343 K, were measured using an analytical method, in the pressure range from 9 MPa to 27 MPa. At lower pressures, the (p, T) projection of the three-phase (liquid + liquid + vapour) equilibrium surface was followed from T = 292 K up to the critical end-point, at T = 309.00 K and p = 7.966 MPa. An attempt to fit several cubic equations of state to the VLE isotherms, using different mixing and combining rules, was most successful for the Soave-van der Waals equation with the Panagiotopoulos-Reid combining rule. This, and other equations of state with good fitting results, were used to predict the behaviour of the system for higher pressures and temperatures than those of this experimental study.
UR - http://www.scopus.com/inward/record.url?scp=0000543338&partnerID=8YFLogxK
U2 - 10.1006/jcht.1996.0148
DO - 10.1006/jcht.1996.0148
M3 - Article
AN - SCOPUS:0000543338
SN - 0021-9614
VL - 29
SP - 197
EP - 209
JO - Journal of Chemical Thermodynamics
JF - Journal of Chemical Thermodynamics
IS - 2
ER -