Table 2.
Organic element analysis (OEA) results of carbonized samples.
| HTT (°C) | Element Content (wt.%) | C/H | C/N | C/O | |||
|---|---|---|---|---|---|---|---|
| C | H | N | O | ||||
| untreated | 69.25 | 3.069 | 11.52 | 17.95 | 22.56 | 6.011 | 3.858 |
| 700 | 70.80 | 2.124 | 11.58 | 15.75 | 33.33 | 6.113 | 4.496 |
| 750 | 73.83 | 2.697 | 9.849 | 13.64 | 27.37 | 7.496 | 5.412 |
| 800 | 76.02 | 2.335 | 8.396 | 13.48 | 32.56 | 9.054 | 5.639 |
| 850 | 76.73 | 2.039 | 8.153 | 13.72 | 37.63 | 9.411 | 5.592 |
| 900 | 77.58 | 1.852 | 7.988 | 12.23 | 41.89 | 9.712 | 6.343 |
| 1100 | 83.39 | 1.163 | 6.554 | 8.548 | 71.70 | 12.72 | 9.755 |
| 1300 | 93.20 | 0.522 | 3.228 | 3.258 | 178.5 | 28.87 | 28.61 |
| 1400 | 95.76 | 0.418 | 2.381 | 2.090 | 229.1 | 40.21 | 45.82 |