Research Article
The Effect of Static Blasting Materials on Coal Structure Changes and Methane Adsorption Characteristics
Table 2
Density and proximate analysis of coal sample.
| Parameters |
| Proximate analysis | ā | Total moisture (Mt %) | 2.7 | External moisture (Mf %) | 1.0 | Inherent moisture (Minh %) | 1.7 | Ash content (Ad %) | 15.12 | Volatility ( %) | 31.03 | Total sulphur (St,d %) | 0.42 | Calorific value (Qnet,ar MJ/kg) | 26.98 |
| Density | ā | True relative density (g/cm3) | 1.46 | Apparent relative density (g/cm3) | 1.43 |
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