Table 1. Property Analysis of Oily Sludge.
| items | content |
|---|---|
| water (wt %) | 31.2 |
| oil (wt %) | 23.3 |
| solid particles (wt %) | 45.5 |
| SARA analysis (wt %) | |
| saturates | 43.68 |
| aromatics | 30.82 |
| resins | 13.01 |
| asphaltenes | 12.49 |
| elemental content (wt %) | |
| C | 81.26 |
| H | 12.48 |
| O | 2.88 |
| N | 0.55 |
| S | 2.83 |
| density (g·cm–3) (20 °C) | 0.9705 |
| viscosity (mm2·s–1) (80 °C) | 168.6 |
| pH | 6.42 |
| calorific valuea (kJ·kg–1) | 43,217 |
a
Calorific value was calculated from elemental analysis data using the following equation:37 calorific value (H) = 339C + 1256H – 109(O – S), where C, H, O, and S are mass ratios of element carbon, hydrogen, oxygen and sulfur.