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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
  1. a% removed from wood