Table 1 Industrial and elemental analysis of coal.

From: Experimental study on the effect of room temperature pre-oxidized time on spontaneous combustion characteristics of coal

Coal sample

Proximate analysis (mass%)

Ultimate analysis (mass%)

Mad

Aad

Vad

FCad

Cdaf

Hdaf

Odaf

Ndaf

HM

9.85

11.35

33.69

45.11

58.08

5.85

34.56

1.51

CYM

7.22

11.71

30.56

50.51

73.62

4.81

20.56

1.01

JM

2.69

5.28

20.74

71.29

82.69

3.94

12.76

0.61

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