| Title | Measurement and modelling of the ternary phase equilibria for high pressure carbon dioxide-ethanol-water mixtures |
| Publication Type | Journal Article |
| Year of Publication | 2007 |
| Authors | Durling, N.E., Catchpole O.J., Tallon S.J., and Grey J.B. |
| Journal | Fluid Phase Equilibria |
| Volume | 252 |
| Issue | 1-2 |
| Pagination | 103 - 113 |
| Date Published | 2007 |
| ISSN | 03783812 (ISSN) |
| Keywords | Carbon dioxide, Equations of state, Ethanol, High pressure effects, Mixing, Peng-Robinson equation of state, Phase equilibria, water, Wong Sandler mixing rules |
| Abstract | 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-H2O at 313 K and 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 313 K 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 and Wong-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. © 2007 Elsevier B.V. All rights reserved. |
| URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-33846930937&partnerID=40&md5=456eca61b280a19801ae1c9e51d1774d |
| DOI | 10.1016/j.fluid.2006.12.014 |
