Table 2.
Ash composition of the coals and raw biomass.
| Type of Material | Coals | Woody Biomass | Lignocellulosic Wastes | ||
|---|---|---|---|---|---|
| Code Sample | LVC | HVC | EU | AB | OW |
| Na2O (%) | 0.65 | 0.48 | 1.82 | 4.19 | 4.89 |
| K2O (%) | 1.90 | 2.02 | 1.97 | 38.30 | 3.15 |
| CaO (%) | 4.49 | 3.08 | 11.82 | 9.28 | 25.10 |
| MgO (%) | 2.06 | 1.57 | 3.99 | 8.01 | 3.09 |
| Fe2O3 (%) | 6.08 | 6.40 | 28.74 | 0.70 | 3.26 |
| MnO (%) | 0.10 | 0.06 | nd | <0.001 | 0.29 |
| P2O5 (%) | 0.66 | 0.17 | 0.62 | 26.90 | 1.60 |
| ZnO (%) | 0.12 | 0.23 | <0.10 | 0.27 | 0.27 |
| Al2O3 (%) | 23.02 | 22.25 | 18.96 | 1.15 | 6.44 |
| SiO2 (%) | 57.37 | 59.89 | 32.10 | 5.78 | 39.85 |
| TiO2 (%) | 0.24 | 1.06 | 0.26 | <0.01 | 5.01 |
| Basicity index -BI- | 2.01 | 0.93 | 0.15 | 20.04 | 0.82 |