Table 4.

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

	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

DE = drupe endocarp.