TY - JOUR
T1 - CO2 + Methanol + Glycerol
T2 - Multiphase behaviour
AU - Carrera, Gonçalo V.S.M.
AU - Visak, Zoran P.
AU - Lukasik, Rafal M.
AU - da Ponte, Manuel Nunes
N1 - Sem PDF.
PY - 2018/11
Y1 - 2018/11
N2 - The phase behaviour of the system CO2 + methanol + glycerol has been studied at low concentrations of this tri-alcohol. The synthetic method was implemented in a visual sapphire cell. New phase diagrams were obtained at temperatures of 313.15 and 333.15 K. Different methanol/glycerol molar ratios of 113, 50 and 30 were considered and its influence on phase behaviour accounted for. Pressures were varied from 6.03 to 11.44 MPa. A specific experiment is reported, starting from an initial volume of 4 mL of liquid mixture methanol + glycerol (methanol/glycerol molar ratio 30), where, with a stepwise addition of CO2, diverse fluid phase phenomena were detected, such as VLE, Critical Point, VLLE, VLLLE, LLE and LE.
AB - The phase behaviour of the system CO2 + methanol + glycerol has been studied at low concentrations of this tri-alcohol. The synthetic method was implemented in a visual sapphire cell. New phase diagrams were obtained at temperatures of 313.15 and 333.15 K. Different methanol/glycerol molar ratios of 113, 50 and 30 were considered and its influence on phase behaviour accounted for. Pressures were varied from 6.03 to 11.44 MPa. A specific experiment is reported, starting from an initial volume of 4 mL of liquid mixture methanol + glycerol (methanol/glycerol molar ratio 30), where, with a stepwise addition of CO2, diverse fluid phase phenomena were detected, such as VLE, Critical Point, VLLE, VLLLE, LLE and LE.
UR - http://www.scopus.com/inward/record.url?scp=85038884146&partnerID=8YFLogxK
U2 - 10.1016/j.supflu.2017.12.032
DO - 10.1016/j.supflu.2017.12.032
M3 - Article
AN - SCOPUS:85038884146
SN - 0896-8446
VL - 141
SP - 260
EP - 264
JO - Journal of Supercritical Fluids
JF - Journal of Supercritical Fluids
ER -