Table 5 Major pyrolysis products identified in chromatograms of cedar bio-oil produced at 500 °C and analytical cedar pyrolysis at 500 °C
From: Characterization of Japanese cedar bio-oil produced using a bench-scale auger pyrolyzer
Peak no. | Compounds | Area % | |
|---|---|---|---|
Bio-oil | Analytical pyrolysis | ||
1 | Methane | N.D. | 1.90 |
2 | Acetaldehyde | 0.69 | 1.15 |
3 | Methanol | 5.30 | 1.99 |
4 | Acetol | 14.13 | 7.18 |
5 | Glycolaldehyde | 8.44 | 6.73 |
6 | Acetic acid | 12.05 | 4.80 |
7 | Furfural | 1.48 | 1.08 |
8 | 2(5H)Furanone | 1.69 | 1.40 |
9 | 2-Hydroxy-2-cyclopenten-1-one | 0.97 | 3.98 |
10 | 2-Hydroxy-3-methyl-2-cyclopenten-1-one | 1.58 | 1.59 |
11 | Guaiacol | 3.85 | 5.11 |
12 | 4-Methylguaiacol | 3.60 | 3.26 |
13 | Phenol | 0.88 | 0.54 |
14 | 4-Ethylguaiacol | 0.74 | 1.03 |
15 | Eugenol | 1.14 | 1.56 |
16 | 4-Vinylguaiacol | 0.26 | 6.06 |
17 | Z-Isoeugenol | 0.98 | 1.12 |
18 | E-Isoeugenol | 0.61 | 5.18 |
19 | 5-Hydroxymethylfurfural | 1.26 | 0.82 |
20 | Vanillin | 1.77 | 1.39 |
21 | Acetoguaiacone | 0.70 | 0.63 |
22 | Dihydroconiferylalcohol | 0.67 | 1.68 |
23 | Coniferylaldehyde | 0.67 | 2.28 |
24 | Coniferylalcohol | N.D. | 2.96 |
25 | Levoglucosan | 2.81 | 3.00 |