Table 1 Elemental composition by CHN analysis

From: Production and characterisation of adsorbents synthesised by hydrothermal carbonisation of biomass wastes

Element (% wt.)	Raw biomass					Hydrochar
Element (% wt.)	ES	RH	LP	CP	CS	ES	RH	LP	CP	CS
C	12.74	38.88	42.07	36.66	48.07	12.18	48.66	48.66	63.21	58.55
H	0.23	5.39	5.99	3.95	5.59	0.20	4.27	5.63	4.63	5.40
N	0.37	0.76	1.61	0.48	0.22	0.16	0.62	2.25	0.72	0.41
O^a	86.66	54.98	50.32	58.91	46.12	87.46	46.45	30.47	31.45	35.64
H/C	0.02	0.14	0.14	0.11	0.12	0.02	0.09	0.09	0.07	0.09
O/C	6.80	1.41	1.20	1.61	0.96	7.18	0.95	0.49	0.50	0.61
C/N	34.44	51.15	26.13	76.91	215.24	77.77	78.91	27.44	88.41	143.98

^aCalculated as difference between 100 and total of C/H/N

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