FT-IR Investigation of the Structural Changes of Sulcis and South Africa Coals under Progressive Heating in Vacuum: Correlation with Volatile Matter

Table 1

Elemental and proximate analysis data of investigated coals*.

Coal	Elemental analysis (wt% d.b.)					Proximate analysis (wt%)
	C	H	N	S	O	M	Cf	Vm	A
Sulcis	52.8	4.2	1.4	5.9	11.5	8.2	40.1	35.6	16.0
South Africa	66.5	3.6	1.7	0.6	8.6	2.5	47.8	23.3	16.5

*As − received.
d.b.: on dry basis; M: moisture; C_f: carbon Fixed; A: ashes; V_m: volatile matter.
Oxygen content was calculated by difference. O = 100 − C − H − N − S − ash.