Research Article
Study on Reutilization of Pyrolytic Residues of Oily Sludge
Table 4
Elemental analysis of pyrolytic residues at different stages.
| Sample | Element type and mass fraction (%) | C | O | Na | Al | Si | S | Ca | Fe |
| Pyrolytic residues | 38.77 | 21.12 | 1.16 | 21.31 | 12.14 | 0.94 | 1.88 | 2.67 | Acid-soluble product | 58.48 | 18.81 | — | 1.36 | 20.67 | 0.68 | — | — | Pyrolytic carbon | 90.75 | 6.42 | — | 1.87 | 0.66 | 0.30 | — | — | Activated carbon | 91.03 | 7.18 | — | 0.85 | 0.33 | 0.61 | — | — |
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