Alkali loading%, gm/gm dry solids | Temperature (°C) | Residence time (min) | aModified CS factor, log M 0 | Solids recovery% | Residue composition%, dry basis | |||
---|---|---|---|---|---|---|---|---|
Dilute NaOH | Aqueous NH3 | Glucose | bTotal sugars | cTotal lignin (AIL + ASL) | ||||
2.0 | 2.0 | 100 | 5 | 0.09 (n = 0.89) | 80.6 ± 0.1 | 24.2 ± 0.2 | 41.1 ± 0.6 | 31.1 ± 0.1 |
4.0 | 4.0 | 100 | 5 | 0.35 | 76.6 ± 0.0 | 24.7 ± 0.4 | 42.0 ± 0.4 | 31.0 ± 0.4 |
6.0 | 6.0 | 100 | 5 | 0.51 | 72.0 ± 0.5 | 25.0 ± 0.3 | 41.4 ± 0.5 | 29.0 ± 0.4 |
8.0 | 8.0 | 100 | 5 | 0.62 | 68.9 ± 0.1 | 27.3 ± 0.7 | 44.4 ± 1.2 | 28.6 ± 0.2 |
10.0 | 10.0 | 100 | 5 | 0.71 | 64.6 ± 0.3 | 28.2 ± 1.5 | 43.2 ± 1.2 | 27.6 ± 0.5 |
2.0 | 2.0 | 121/15 psi | 60 | 0.26 (n = 3.1) | 78.1 ± 0.2 | 25.3 ± 0.2 | 42.1 ± 0.2 | 31.5 ± 0.1 |
4.0 | 4.0 | 121/15 psi | 60 | 1.20 | 71.2 ± 0.6 | 26.6 ± 0.8 | 42.9 ± 1.0 | 28.8 ± 0.3 |
6.0 | 6.0 | 121/15 psi | 60 | 1.74 | 63.0 ± 0.2 | 30.0 ± 0.7 | 46.9 ± 1.0 | 26.5 ± 0.1 |
8.0 | 8.0 | 121/15 psi | 60 | 2.14 | 57.0 ± 0.6 | 32.5 ± 0.0 | 52.3 ± 0.0 | 22.8 ± 0.0 |
10.0 | 10.0 | 121/15 psi | 60 | 2.43 | 51.2 ± 0.0 | 32.8 ± 0.0 | 53.5 ± 0.0 | 19.5 ± 0.1 |
2.0 | - | 121/15 psi | 60 | 0.21 (n = 2.2) | 79.0 ± 0.1 | 25.5 ± 0.0 | 42.4 ± 0.0 | 33.2 ± 0.4 |
4.0 | - | 121/15 psi | 60 | 0.89 | 72.6 ± 0.8 | 27.0 ± 1.1 | 44.2 ± 1.2 | 30.5 ± 0.2 |
6.0 | - | 121/15 psi | 60 | 1.28 | 64.2 ± 0.1 | 31.1 ± 0.5 | 48.5 ± 1.3 | 27.3 ± 0.1 |
8.0 | - | 121/15 psi | 60 | 1.56 | 58.5 ± 0.1 | 32.2 ± 0.0 | 48.9 ± 0.0 | 23.9 ± 1.3 |
10.0 | - | 121/15 psi | 60 | 1.77 | 52.0 ± 0.3 | 31.8 ± 0.0 | 50.0 ± 0.0 | 20.1 ± 0.1 |
- | 2.0 | 121/15 psi | 60 | 0.21 (n = 2.2) | 83.1 ± 0.4 | 22.9 ± 1.2 | 41.2 ± 1.8 | 33.1 ± 0.3 |
- | 4.0 | 121/15 psi | 60 | 0.89 | 79.5 ± 1.2 | 22.7 ± 0.1 | 42.2 ± 0.3 | 33.2 ± 0.2 |
- | 6.0 | 121/15 psi | 60 | 1.28 | 79.3 ± 1.6 | 22.2 ± 0.3 | 42.0 ± 0.0 | 32.6 ± 0.7 |
- | 8.0 | 121/15 psi | 60 | 1.56 | 77.2 ± 0.4 | 23.2 ± 0.4 | 43.1 ± 0.8 | 32.4 ± 0.2 |
- | 10.0 | 121/15 psi | 60 | 1.77 | 76.8 ± 0.8 | 23.2 ± 0.4 | 43.1 ± 0.8 | 31.2 ± 0.8 |
R2 | Â | Â | Â | Â | 0.95 | 0.90 | 0.79 | 0.87 |
RMSE | Â | Â | Â | Â | 2.26 | 1.19 | 1.84 | 1.57 |
Tukey’s HSD (P < 0.05) | 43.34 | 17.84 | 25.5 | 16.07 |