| ABE | Acetone butanol ethanol |
| FTIR | Fourier transform infrared spectroscopy |
| GC-MS | Gas chromatography mass spectrometry |
| HPLC | High Performance Liquid Chromatography |
| MFC | Mass flow controller |
| NRTL | Non-random two-liquid model |
| SNPs | Silica nano particles (Surface modified with CTAB) |
| STP | Standard temperature and pressure (273.15 K, 101.325 kPa)Greek letters |
| γ | Activity coefficient |
| β | Separation factor |
| α | Selectivity |