Highly Porous Carbon Materials from Biomass by Chemical and Carbonization Method: A Comparison Study

Table 3

Elemental composition (value in wt.%) in biomass-based carbon.

Elements	Carbonization method			Dehydration method			Commercial charcoal (CC)	Lignite (coal)
	FP	Bamboo	EFB	FP	Bamboo	EFB
C	84.2	74.58	71.43	85.30	77.72	76.55	73.60	60–75
H	3.62	2.26	2.54	4.46	3.82	3.17	4.82	6.0–5.8
N	0.31	0.82	1.47	0.21	1.10	1.1	1.4	34–17
Volatile elements	11.87	22.34	24.56	9.89	17.36	19.18	20.18	45–65