Research Article
Characterization of Some Nigerian Coals for Power Generation
Table 4
Results of ash composition tests of the five coal samples.
| Constituents | Samples | Odagbo | Owukpa | Ezimo | Amansiodo | Inyi |
| Al2O3 (%) | 25.78 | 27.60 | 20.76 | 29.13 | 19.02 | CaO (%) | 2.15 | 0.95 | 0.60 | 0.34 | 0.05 | Cr2O3 (%) | 0.03 | 0.03 | 0.02 | 0.04 | 0.01 | Fe2O3 (%) | 7.98 | 4.48 | 2.93 | 6.90 | 1.70 | K2O (%) | 0.31 | 0.06 | 1.13 | 1.32 | 0.36 | MgO (%) | 1.31 | 0.04 | 0.16 | 0.35 | 0.06 | MnO (%) | 0.41 | 0.03 | 0.04 | 0.05 | — | Na2O (%) | 0.07 | 0.02 | 0.03 | 0.06 | 0.01 | P2O5 (%) | 0.06 | 0.77 | 0.21 | 0.22 | 0.06 | SiO2 (%) | 56.81 | 61.64 | 70.92 | 58.94 | 75.92 | TiO2 (%) | 1.98 | 2.98 | 2.29 | 2.13 | 2.29 | V2O5 (%) | 0.09 | 0.03 | 0.02 | 0.04 | 0.02 | ZrO2 (%) | 0.10 | 0.13 | 0.11 | 0.07 | 0.15 | Ba (%) | 0.20 | 0.17 | 0.08 | 0.06 | 0.02 | Sr (%) | 0.04 | 0.13 | 0.04 | 0.05 | 0.01 | SO3 (%) | 1.74 | — | 0.28 | — | — |
|
|