Study on Pyrolysis Characteristics of Coal and Combustion Gas Release in Inert Environment

Table 1

Proximate analysis of the investigated samples.

Sample	Type	Industrial analysis					HHV	LHV	Elemental analysis
		(%)	(%)	(%)	(%)	(%)	Card (g)
a	High-volatile C bituminous	2.06	15.2	21.77	1.17	62.19	6780	6425	71.14	4	1.05	5.81
b	High-volatile A bituminous	3.9	9.36	30.81	5.66	59.36	7804	7246	77.27	4.88	1.28	4.99
c	Sub-bituminous C	1.6	30.19	26.51	6.21	42.62	5423	5156	55.26	3.49	0.9	7.58
d	Bituminous	1.83	8.74	18.29	1.68	71.64	7449	7091	80.88	4.21	1.23	2.38
e	Sub-bituminous B	1.33	19.27	20.82	2.38	59.43	6630	6339	71	4.06	1.19	1.95
f	Sub-bituminous B	2.6	11.78	29.03	4.08	58.99	7538	7101	76.41	4.73	1.36	3.36