Abstract
A generalized equation of state that explicitly recognizes self-association and cross-association has been evaluated for systems with two associating species at high pressures as well as low pressures. Forty-five systems were evaluated for components ranging from water to propanol. The Soave equation of state and the UNIFAC model were used for comparison. Percent average absolute deviations in bubble-point pressure were 3.54 for the Soave equation, 2.53 for UNIFAC, and 1.62 for the association model. Generalized correlations of the pure-component parameters and a single binary interaction parameter were used for all models. Some limitations are discussed, but the results show that the reaction equilibrium approach is a clear improvement over the Soave equation of state and competitive with UNIFAC.
| Original language | English |
|---|---|
| Pages (from-to) | 524-532 |
| Number of pages | 9 |
| Journal | Industrial and Engineering Chemistry Research |
| Volume | 30 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1 Mar 1991 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- Industrial and Manufacturing Engineering
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