Abstract
The effect of different ionic liquids on relative volatilities of benzene-cyclohexane system was determined at 0.101 MPa. The azeotropic point of benzene-cyclohexane system was eliminated in extractive distillation with ionic liquid, and relative volatility of cyclohexane to benzene increased. In comparison with regular extractive distillation, extractive distillation with ionic liquid makes small extractant ratio possible and can obtain high purity of cyclohexane. By flash distillation of residue, benzene and ionic liquid could be separated.
| Original language | English |
|---|---|
| Pages (from-to) | 905-909 |
| Number of pages | 5 |
| Journal | Petrochemical Technology |
| Volume | 37 |
| Issue number | 9 |
| Publication status | Published - 15 Sept 2008 |
Keywords
- Azeotrope
- Benzene-cyclohexane system
- Extractive distillation
- Ionic liquid
- Separation
- Vapor-liquid equilibrium
ASJC Scopus subject areas
- General Chemical Engineering
- Fuel Technology