Study on the Effect of Soft and Hard Coal Pore Structure on Gas Adsorption Characteristics

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Coal mine</td><td class="align_center">Mark as</td><td class="align_center">Relative pressure <i>P</i>/<i>P</i><sub>0</sub> range</td><td class="align_center">Formula (<a href="https://static.hindawi.com/articles/ace/volume-2021/1425227/figures/#EEq1" target="_blank">1</a>) fractal dimension calculation</td><td class="align_center">Formula (<a href="https://static.hindawi.com/articles/ace/volume-2021/1425227/figures/#EEq2" target="_blank">2</a>) fractal dimension calculation</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left" rowspan="2">Lvtang</td><td class="align_center">LT-1</td><td class="align_center">0.15–0.96</td><td class="align_center">2.34</td><td class="align_center">2.23</td></tr><tr><td class="align_center">LT-2</td><td class="align_center">0.17–0.97</td><td class="align_center">2.35</td><td class="align_center">2.25</td></tr><tr><td class="align_left" colspan="5"><hr/></td></tr><tr><td class="align_left" rowspan="2">Quanlun</td><td class="align_center">QL-1</td><td class="align_center">0.44–0.99</td><td class="align_center">1.58</td><td class="align_center">1.43</td></tr><tr><td class="align_center">QL-2</td><td class="align_center">0.43–0.99</td><td class="align_center">1.62</td><td class="align_center">1.55</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Calculation results of the surface fractal dimensions of coal samples.</div>

Advances in Civil Engineering

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Table 3

Table 3: Study on the Effect of Soft and Hard Coal Pore Structure on Gas Adsorption Characteristics 