Abstract
In previous work, we developed the crossover SAFT-VR equation of state (SAFT-VRX) for pure fluids by following the crossover approach proposed by Kiselev. The SAFT-VRX equation was shown to be very accurate in the prediction of PVT and phase behaviour for both non-associating and associating fluids. In particular, simple expressions for the potential model parameters for the n-alkane homologous series were developed, allowing the prediction of the thermodynamic properties without fitting to experimental data. In this work, we have applied the SAFT-VRX equation to binary mixtures of short-chain n-alkanes, using the prescriptions for the model parameters developed previously to determine the pure fluid parameters. The SAFT-VRX equation is found to accurately predict the gas-liquid critical locus and vapor-liquid equilibrium data for the systems studied without fitting to binary experimental mixture data.
Original language | English |
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Pages (from-to) | 275-282 |
Number of pages | 8 |
Journal | Fluid Phase Equilibria |
Volume | 228-229 |
DOIs | |
Publication status | Published - Feb 2005 |
Keywords
- Alkanes
- Binary mixtures
- Equation of state
- Hydrocarbons
- Phase equilibria
- SAFT
- SAFT-VRX
ASJC Scopus subject areas
- General Chemical Engineering
- General Physics and Astronomy
- Physical and Theoretical Chemistry