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Table 1 Proximate and ultimate analyses, source and calorific value of coal samples during campaign A, B and C

From: Mass flows and characteristic of mercury emitted from coal-fired power plant equipped with seawater flue gas desulphurization

 

Boiler

Coal type

Hg

(mg kg−1)

Cl

(mg kg−1)

S

(%)

Proximate analysis (Wad%)

Lower heating value (MJ kg−1)

M

A

V

FC

A

I

Indonesian coal + Australian coal

0.046

95.7

0.50

4.08

11.4

33.7

50.8

28.3

II

Indonesian coal + Australian coal

0.033

95.4

0.50

4.41

10.3

35.0

50.3

28.1

III

Indonesian coal + Australian coal

0.041

101

0.51

6.73

8.76

35.4

49.1

27.4

 

Average

 

0.040

97.4

0.5

5.07

10.1

34.7

50.1

28.0

B

I

Indonesian coal + Russian coal

0.055

45.2

0.60

4.07

10.8

28.2

56.9

28.7

II

Indonesian coal + Australian coal

0.039

81.8

0.60

7.19

7.18

35.2

50.4

27.1

III

Indonesian coal + Russian coal

0.057

42.2

0.59

6.71

8.44

33.2

51.7

27.4

 

Average

 

0.050

56.4

0.6

5.99

8.8

32.2

53.0

27.7

C

I

Indonesian coal + Russian coal

0.043

41.3

0.52

3.82

10.9

33.5

51.7

28.9

II

Australian coal

0.034

137

0.47

3.46

12.2

30.8

53.5

28.2

III

Russian coal + Australian coal

0.031

51.6

0.51

4.66

12.4

32.2

50.7

27.6

 

Average

 

0.036

76.6

0.50

3.98

11.8

32.2

52.0

28.2

  1. M Moisture content, A Ash content, V Volatile content, FC Fixed carbon content, Wad% air dried weight percentage