Characterization of Biochar Properties Affected by Different Pyrolysis Temperatures Using Visible-Near-Infrared Spectroscopy

Table 2

Intercorrelation coefficients among ash, volatile matter (VM), fixed carbon (Fc) contents, and calorific value (CV) of biochar samples.

	Ash (wt.%)	VM (wt.%)	Fc (wt.%)	CV (MJ/kg)
Ash (wt.%)	1	−0.52	0.03	−0.14
VM (wt.%)	−0.52	1	−0.87	−0.73
Fc (wt.%)	0.03	−0.87	1	0.94
CV (MJ/kg)	−0.14	−0.73	0.94	1