Table 3.
Select compounds identified in pyrograms obtained from biomass and lignin pyrolysis
| Compound | Retention time (minutes) | Source |
|---|---|---|
| Benzene | 2.6 | Lignin |
| Hydroxyacetaldehyde | 2.8 | Lignin + holocellulose |
| Acetic acid | 3.0 | Lignin + holocellulose |
| Toluene | 3.4 to 3.5 | Lignin |
| 1-hydroxy-2-propanone | 3.5 | Lignin + holocellulose |
| Acetone | 5.2 | Lignin + holocellulose |
| Furfural | 5.4 to 5.9 | Lignin + holocellulose |
| 2(5H)-furanone | 7.9 | Lignin + holocellulose |
| Phenol | 8.9 to 9.1 | Lignin |
| 2-methoxyphenol | 9.1 to 9.2 | Lignin |
| 2-methylphenol | 9.4 to 9.5 | Lignin |
| 2,6-dimethylphenol | 9.7 to 9.8 | Lignin |
| 4-methylphenol | 10.1 to 10.5 | Lignin |
| 2-methoxy-4-methylphenol | 10.7 to 11.2 | Lignin |
| 4-ethyl-2-methoxyphenol | 11.8 to 12.1 | Lignin |
| 2-methoxy-4-vinylphenol | 12.4 to 13.1 | Lignin |
| 2,6-dimethoxyphenol | 13.2 to 13.6 | Lignin |
| 2-methoxy-4-(1-propenyl) phenol | 14.2 | Lignin |
| 2-methoxy-4-(2-propenyl) phenol | 12.6 | Lignin |
| Vanillin | 14.4 | Lignin |