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Table 4 Comparison of compounds (% area on pyrogram) produced from whole biomass pyrolysis at 650°C

From: Identification and thermochemical analysis of high-lignin feedstocks for biofuel and biochemical production

  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
  1. DE = drupe endocarp.