Research Article
Effects of Maceral Compositions of Coal on Methane Adsorption Heat
Table 2
Physical parameters of the collected coal samples.
| | Coal number | Mass (kg) | (%) | Proximate (%) | Coal quality indices | Coal rank | | Mad | Aad | Vad | FCad | Vdaf (%) | G (%) | Y (mm) |
| | Number 1 | 3.6 | 0.59 | 7.82 | 25.12 | 27.85 | 39.21 | 41.53 | 27.6 | — | Long-flame coal | | Number 2 | 2.9 | 1.12 | 1.01 | 8.3 | 31.57 | 59.12 | 34.81 | 92.1 | 29.8 | Fat coal | | Number 3 | 3.1 | 1.46 | 6.03 | 9.13 | 29.58 | 55.26 | 34.87 | 84.47 | 13.7 | Coking coal | | Number 4 | 4.2 | 2.11 | 0.91 | 13.42 | 8.66 | 77.01 | 10.11 | 3.2 | — | Lean coal | | Number 5 | 3.8 | 2.86 | 1.27 | 5.67 | 8.9 | 84.16 | 9.56 | — | — | Anthracite | | Number 6 | 3.4 | 2.37 | 0.72 | 13.88 | 7.54 | 77.86 | 8.83 | — | — | Anthracite |
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