Table 2 Steepest ascent experiment of AAO pretreatment
Runs | X 1 | X 2 | X 3 | Delignification (%) |
|---|---|---|---|---|
Time (h) | Acetic acid (%) | H2SO4 addition (%) | ||
1 | 1.3 | 40 | 0.45 | 23.2 |
2 | 1.4 | 45 | 0.51 | 37.7 |
3 | 1.6 | 50 | 0.58 | 60.1 |
4 | 1.8 | 55 | 0.64 | 64.1 |
5 | 2.0 | 60 | 0.70 | 66.3 |
6 | 2.2 | 65 | 0.76 | 67.3 |
7 | 2.4 | 70 | 0.83 | 68.3 |