Table 4 Comparison of compounds (% area on pyrogram) produced from whole biomass pyrolysis at 650°C
| Â | Feedstock | ||||
|---|---|---|---|---|---|
Compound | Switchgrass | Walnut (DE) | Olive (DE) | Coconut (DE) | Peach (DE) |
Hydroxyacetaldehyde | 5.11 | 3.36 | 3.91 | 3 | 3.89 |
Acetic acid | 18.41 | 11.77 | 12.96 | 12.49 | 10.78 |
1-hyroxy-2-propanone | 16.18 | 5.36 | 6.76 | 4.52 | 3.97 |
Acetone | 10.82 | 5.01 | 5.2 | 4.37 | 3.49 |
Furfural | 8.42 | 3.31 | 4.08 | 2.86 | 3.86 |
2(5H)-furanone | 3.93 | 3.32 | 2.6 | 2.27 | 0.89 |
Phenol | 0 | 3.84 | 3.76 | 15.96 | 3.28 |
2-methoxyphenol | 3.31 | 10.66 | 11.65 | 7.4 | 3.65 |
2-methylphenol | 0 | 1.41 | 1.73 | 1.44 | 0.48 |
4-methylphenol | 0.89 | 1.9 | 0 | 1.61 | 2.18 |
2-methoxy-4-methylphenol | 0 | 8.83 | 4.9 | 3.9 | 3.98 |
4-ethyl-2-methoxyphenol | 0 | 2 | 0.6 | 0.9 | 1.04 |
2-methoxy-4-vinylphenol | 1.02 | 1.37 | 0 | 1.56 | 7.54 |
2,6-dimethoxyphenol | 0 | 0 | 0 | 0 | 0 |
2-methoxy-4-(2-propenyl)-phenol | 0 | 0 | 0 | 0 | 3.88 |
Vanillin | 0 | 0 | 0 | 0 | 0 |
Sum lignin | 5.21 | 30.01 | 22.63 | 32.75 | 26.03 |