Table 6 Coal quality measurement results.

From: Experimental study on the impact of “IDS + JFCS” complex wetting agent on the characteristics of coal bodies

Kinds

Dry basis ash (%)

Dry, ash-free volatile matter (%)

Dry basis full sulfur (%)

Air drying base high-level heat generation (MJ/kg)

Coal type

Raw coal

34.36

20.4

4.76

13.1

Coking coal

IDS-soaked coal samples

32.42

19.66

4.12

13.0

Coking coal

Complex wetting agent soaking coal samples

31.22

20.28

4.02

13.3

Coking coal