Table 3 Mercury intrusion porosimetry results of coal samples.
Sample | Porosity Parameters | 0Â kHz/0Â kV | 80Â kHz/1Â kV | 80Â kHz/3Â kV | 80Â kHz/5Â kV | 7Â kHz/1Â kV | 40Â kHz/1Â kV |
|---|---|---|---|---|---|---|---|
#9 | Total Pore Area S/(m2·g− 1) | 2.977 | 4.763 | 4.946 | 5.117 | 4.636 | 4.680 |
Volume Median Pore Size Dv/nm | 74.6 | 78.1 | 80.9 | 82.6 | 76.4 | 77.7 | |
Area Median Pore Size Da/nm | 7.8 | 8.5 | 9.2 | 9.7 | 8.1 | 8.4 | |
Average Pore Diameter d/nm | 18.6 | 20.3 | 23.7 | 25.8 | 19.7 | 20.2 | |
#15 | Total Pore Area S/(m2·g− 1) | 2.205 | 4.733 | 5.205 | 5.273 | 4.332 | 4.515 |
Volume Median Pore Size Dv/nm | 64.2 | 69.5 | 70.1 | 78.9 | 66.7 | 68.3 | |
Area Median Pore Size Da/nm | 7.5 | 8.4 | 8.8 | 9.4 | 7.9 | 8.1 | |
Average Pore Diameter d/nm | 17.2 | 19.4 | 19.7 | 22.5 | 18.1 | 18.8 |
