Table 1.
Sample Proportions
| Sample | Designation | Proportions |
|---|---|---|
| 1 | Coal | 100% |
| 2 | Coal: Rice Husk | 75%: 25% |
| 3 | Coal: Rice Husk | 50%:50% |
| 4 | Coal: Rice Husk | 25%: 75% |
| 5 | Coal: Rice Husk | 100% |
Figure 1.
Higher Heating Value
Figure 2.
Elemental Analysis
Figure 3.
Mass Degradation of coal, rice husk and their blends
Figure 4.
DTGA Data Evaluationblends
Figure 5.
Activation Energy
Table 2.
Kinetics Data
| Samples | Devolatilization | Char Degradation | ||||||
|---|---|---|---|---|---|---|---|---|
| Tm1 (K) | Ea1 (kJ/mol) | K (min−1) | A (min−1) | Tm2 (K) | Ea2 (kJ/mol) | K (min−1) | A (min−1) | |
| 100% Coal | --- | --- | --- | --- | 722.8 | 60.4 | 0.1391 | 3241.1 |
| 75/25: C/R | 594 | 22.9 | 0.0776 | 7.854 | 710.6 | 57.7 | 0.1375 | 2413.7 |
| 50/50: C/R | 584 | 24.4 | 0.0845 | 11.88 | 707.5 | 48.8 | 0.1173 | 471.5 |
| 25/75: C/R | 582 | 27.6 | 0.0981 | 29.48 | 719.6 | 31.8 | 0.0739 | 15.18 |
| 100%Rice Husk | 574 | 45.2 | 0.1645 | 2111.4 | 674.3 | 14.2 | 0.0373 | 0.4603 |