Analysis of Index Gases of Coal Spontaneous Combustion Using Fourier Transform Infrared Spectrometer

Table 4

Testing results.

Item	Concentration of index gas/
	CH4	C2H6	C3H8	C4H10	C4H10	C2H4	C3H6	C2H2	CO	CO2
1
Exp	976	19.8	0	0	0	0	0	0	0	760
Anal	986	18.7	0.0	0.7	0.0	0.5	1.0	0.2	1.8	764
2
Exp	99972	998	199	0	0	0	0	0	0	0
Anal	98823	981	202	0.3	3.5	0.2	0.4	0.1	1.5	0.0
3
Exp	99819	498	199	50.0	50.0	50.0	50.0	50.0	10.0	230
Anal	100000	487	212	47.5	56.1	45.3	52.2	48.6	9.0	231
4
Exp	19988	498	199	100	100	498	200	50.4	15.0	1010
Anal	19880	486	214	95.1	82.2	467	205	47.4	15.3	1022
5
Exp	199790	9996	2987	2993	2497	2989	998	999	600	10020
Anal	201060	10221	3159	3053	2565	2920	1051	1007	611	10172
6
Exp	10001	497	100	50.0	30.0	0	0	0	20	490
Anal	9970	485	92.3	52.4	28.3	0.9	0.0	0.4	22	494
7
Exp	10011	501	100	50.0	100	19.8	9.7	0	200	2520
Anal	10309	499	86.9	53.5	106	17.4	10.8	0.3	198	2503
8
Exp	99892	2021	1001	500	602	501	200	100	300	2300
Anal	99619	2126	1012	494	590	510	202	97	309	2327
9
Exp	501020	20012	4987	4993	5017	4989	2998	2998	5002	200020
Anal	511060	20722	5059	5053	5065	4962	3051	3016	4911	201703
10
Exp	45004	2000	1000	500	400	20.1	10.1	10.2	10.2	2200
Anal	44636	2030	1051	489	405	20.4	10.0	9.7	9.2	2219
11
Exp	198972	978	255	302	200	49.8	40.0	19.8	199	700
Anal	196650	960	264	307	201	50.7	40.2	20.1	201	690
12
Exp	198	18.1	15.0	10.0	0	0	0	0	0	504
Anal	201	16.3	16.1	10.8	0.9	0	0.2	0.0	0.5	500
13
Exp	502	10.1	5.0	0	0	0	0	0	0	20.2
Anal	501	9.2	4.2	0.1	1.2	0.2	0.1	0.2	0.9	18.6
14
Exp	39995	1987	100	40.0	30.0	20.0	19.9	0	400	998
Anal	39534	1956	96.1	39.1	27.1	18.1	18.7	0.3	387	986
15
Exp	1989	98.2	19.0	10.0	0	10.0	0	5	0	0
Anal	1925	96.1	17.1	10.2	1.1	9.8	0.0	5.5	0.1	0.0