Table 5. Semichar Stability Test Experiment for Lignitea.
| final temperature (°C) | accumulated gas flow (L) | tar and water production (g) | semichar yield (g) | particle size (mm) | particle size mass distribution (g) | distribution percentage (%) | volatile (%) |
|---|---|---|---|---|---|---|---|
| >6 | 10.87 | 88.3 | 26.4 | ||||
| 450 | 1.3 | 5.431 | 12.282 | 3–6 | 1.217 | 9.89 | 25.0 |
| <3 | 0.223 | 1.81 | — | ||||
| total | 12.31 | 100 | — | ||||
| >6 | 10.903 | 94.86 | 12.6 | ||||
| 550 | 1.8 | 5.386 | 11.476 | 3–6 | 0.459 | 3.99 | — |
| <3 | 0.132 | 1.15 | — | ||||
| total | 11.494 | 100 | — | ||||
| >6 | 9.016 | 87.37 | 8.16 | ||||
| 650 | 3.2 | 5.662 | 10.159 | 3–6 | 1.084 | 10.5 | 7.43 |
| <3 | 0.219 | 2.12 | — | ||||
| total | 10.319 | 100 | — |
a
″—″ in the table means that the quality is lower than the standard inspection quality.