Research Article
Thermodynamic Characteristics of Methane Adsorption of Coal with Different Initial Gas Pressures at Different Temperatures
| Samples | Free gas pressure (MPa) | Free gas content (L) | Temperature (°C) |
| #1 | | | 30, 40, …, 90 | | | 30, 40, …, 90 | | | 30, 40, …, 90 |
| #2 | | | 30, 40, …, 90 | | | 30, 40, …, 90 | | | 30, 40, …, 90 |
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