| |
Kraft process |
Sulfite process |
| pH |
13-14 |
1-4 |
| temperature |
160-180°C |
125-170°C |
| |
Pine%w/w DM |
Birch%w/w DM |
Spruce%w/w DM |
Birch%w/w DM |
| Monosaccharides
arabinose |
|
|
1 |
0 |
| galactose |
|
|
5 |
1 |
| glucose |
|
|
4 |
1 |
| mannose |
|
|
12 |
6 |
| xylose |
|
|
6 |
21 |
| Organic acids
acetic acid |
4 |
9 |
4 |
|
| aldonic acids |
|
|
5 |
|
| formic acid |
6 |
4 |
|
|
| glucuronic acid |
|
|
|
2 |
| glucoisosaccharinic acid |
7 |
3 |
|
|
| glycolic acid |
2 |
2 |
|
|
| lactic acid |
3 |
2 |
|
|
| 2-hydroxybutanoic acid |
1 |
5 |
|
|
| 3,4-dideoxy pentanoic acid |
2 |
1 |
|
|
| 3-deoxypentanoic acid |
1 |
1 |
|
|
| xyloisosaccharinic acid |
1 |
2 |
|
|
| other acids |
4 |
|
|
|
| Others |
|
|
|
|
| lignin |
33 |
27 |
|
|
| lignosulfonate |
|
|
55 |
|
| hemicellulose |
8 |
12 |
|
|
|
