Dergiler / Turkish Journal of Chemistry / 2002 / Cilt: 26 - Sayı: 4
Vapour Liquid Equilibrium in Asymmetric Mixtures of n-Alkanes with Ethane
- Sayfa
- 481–490
- DOI
- —
Özet
The paper presents a vapour liquid equilibria study in binary mixtures of n-alkanes with high dimensional asymmetry. Each mixture contains ethane and alkanes higher than eicosane. Calculations were done using two equations of state, Peng-Robinson (PR) and Soave (SRK), in combination with van der Waals mixing rules, corrected with two interaction parameters. A limited temperature dependence of the interaction parameters was found. The correlations between the interaction parameters and the number of carbon atoms of the higher n-alkane led to equations valid for systems ethane + C3 up to C44. The results of the prediction calculations were good, both with PR and SRK.
Abstract
The paper presents a vapour liquid equilibria study in binary mixtures of n-alkanes with high dimensional asymmetry. Each mixture contains ethane and alkanes higher than eicosane. Calculations were done using two equations of state, Peng-Robinson (PR) and Soave (SRK), in combination with van der Waals mixing rules, corrected with two interaction parameters. A limited temperature dependence of the interaction parameters was found. The correlations between the interaction parameters and the number of carbon atoms of the higher n-alkane led to equations valid for systems ethane + C3 up to C44. The results of the prediction calculations were good, both with PR and SRK.