Table 5 Mass of components in treated wood chips, precipitates of acidification of hydrolysis liquor, acidified hydrolysis liquor, acidified soda liquor, and soda liquor lignin (based on 100 g oven dried wood)
From: A process for producing lignin and volatile compounds from hydrolysis liquor
Sample ID | Acidified hydrolysis liquor, %a | Precipitates of acidified hydrolysis liquor, %a | Acidified soda liquor, %a | Wood residue, % | Total, % | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mono sugar | Poly sugar | Hydrolysis lignin | Furfural | Acetic acid | Mono sugar | Poly sugar | Hydrolysis lignin | Furfural | Acetic acid | Lignin in solution | Lignin precipitated | |||
4 | 2.9 | 8.6 | 5.8 | 0.1 | 0.1 | NA | NA | 0.1 | 0.1 | 0.6 | 0.5 | 0.2 | 76.7 | 95.7 |
5 | 5.1 | 8.0 | 5.9 | 0.3 | 0.3 | 0.7 | 0.7 | 0.1 | 0.5 | 0.4 | 0.6 | 0.5 | 75.1 | 98.2 |
6 | 6.9 | 3.3 | 7.5 | 0.6 | 0.2 | NA | NA | NA | 1.9 | 0.3 | 1.0 | 0.6 | 74.3 | 96.6 |