Coal

LIG

SUB

BIT-LV

BIT-HV

SA

ANT

Inherent moisture (air dried) wt%

1.7

1.9

1.3

2.7

2.3

2.5

Ash (air-dried) wt%

0.8

2.0

3.3

1.2

1.8

1.5

Volatile matter (air-dried) wt%

60.3

43.2

25.0

27.2

9.6

6.8

Fixed carbon (air-dried) wt%

37.3

53.0

70.4

68.9

86.3

89.2

Carbon (daf) wt%

69.2

75.1

80.9

83.4

89.0

85.6

Hydrogen (daf) wt%

6.2

5.2

4.2

4.6

3.3

2.4

Nitrogen (daf) wt%

0.6

1.8

2.3

2.0

1.8

2.0

Oxygen (daf) wt%

20.3

17.4

12.3

9.1

5.0

7.7

Sulphur (daf) wt%

2.7

0.1

0.3

1.0

0.7

2.1

Gross calorific value (MJ/kg)

28.9

29.3

30.0

32.0

33.3

32.7

Total reflectance (Ro)

0.35

0.77

1.27

1.23

2.45

2.94

H/C

1.08

0.83

0.62

0.66

0.45

0.34

O/C

0.22

0.17

0.11

0.08

0.04

0.07

f_a

0.40

0.58

0.74

0.72

0.84

0.98

Fuel ratio

0.6

1.2

2.8

2.5

9.0

13

DR surface area (m²/g)

109

140

169

142

199

136