| from the mixture | 3 | other |
| from the gas production onsite | 2 | location |
| by cooling to -48 ° c. | 2 | manner |
| butane → be → separated | 8 |
| negative | neutral | positive |
| 0.117 | 0.837 | 0.046 |
| Raw frequency | 8 |
| Normalized frequency | 0.362 |
| Modifier score | 0.500 |
| Perplexity | 314.830 |