The Scientific World Journal / 2014 / Article / Tab 2

Research Article

Characterization of Coal Porosity for Naturally Tectonically Stressed Coals in Huaibei Coal Field, China

Table 2

DFT cumulative specific surface area, cumulative pore volume, and pore average width by N2 isotherm for deformed coal samples.

Deformation seriesSample
ID
Deformation degreesSpecific
surface area/m2·g−1
Cumulative
pore volume/cm3·g−1
Average
width/nm

Brittle deformationY04Weak1.58155.541616.3869
L10Weak1.12404.741516.2702
L01Weak1.18006.316420.5245
H12Strong2.52979.531711.9679
T02Strong2.34919.051712.6179
Z02Weak1.64655.173112.5544

Ductile deformationL04Weak4.000910.9437.87924
K04Weak4.143412.1837.79493
H02Strong2.37089.254813.4231
H09Strong2.60919.558612.1140
H03Strong2.743011.57415.2008
T05Strong2.717110.05012.0523