Table 4.
Potential concentrations of inhibitor compounds formed at 20-minute reaction times at 200°C under hydrothermal conditions
|
Species |
Molecular weight |
Liquor ratio = 10:1 |
|
Liquor ratio = 4:1 |
|
|---|---|---|---|---|---|
| g/kg | mM | g/kg | mM | ||
| Lignin |
188a |
13 |
6.9 |
18 |
9.5 |
| Acetic acid |
60 |
9 |
15 |
16 |
27 |
| Furans |
96b |
2.5 |
2.6 |
18 |
19 |
| Formic acid | 46 | 5 | 10.9 | 8.5 | 18.5 |
aVanillic acid; bfurfural.