Table 3 Example of sugar solubilization (yield is g per 100 g unless otherwise stated) with raw material, liquid fraction of the slurry after pretreatment, and liquid fraction after EH (hydrolysate) with a combined severity factor of 3.17 (corresponding to 1% H2SO4 for 7 min at 202°C).
From: Impact of dual temperature profile in dilute acid hydrolysis of spruce for ethanol production
Raw material | Slurry | Hydrolysate | |
|---|---|---|---|
Glucose | 50.1 | 14.2 | 28.8 |
Galactose | 3.2 | 1.4 | 1.6 |
Mannose | 13.1 | 6.2 | 6.4 |
Cellubiose | 1 | 1.0 | 1.0 |
Xylose | 5.8 | 2.6 | 2.8 |
Arabinose | 1.3 | 0.9 | N/A |
Overall yield hexoses | 66.3 | 21.8 | 36.7 |
Yield hexoses (g/g total C6), % | - | 33 | 55 |
Liquid | 100 | 28 | 394 |
Solids (WIS) | - | 52 | 41 |
Total solids, % | 41.7 (37.72) | 19.4 (12.73) | - |