A continuous flow apparatus for measuring the phase equilibria of liquids in CO2 is presented. Phase equilibrium measurements have been made on the ternary system CO2 EtOH H2Oat 313Kand pressures of 100 300 bar, and comparisons have been made with literature data where possible. Ethanol partition coefficients, selectivities and loadings for the CO2 EtOH H2O system at 313K and pressures of 100 300 bar are reported. Binary data from the literature and ternary CO2 EtOH H2O equilibrium measurements from this work were compared with results predicted using the Peng Robinson equation of state with quadratic andWong Sandler mixing rules. The phase behaviour of the ternary systems was predicted more accurately with the Wong Sandler mixing rules than with the quadratic mixing rules.
Compounds
#
Formula
Name
1
C2H6O
ethanol
2
CO2
carbon dioxide
3
H2O
water
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.