Figure 1
The principle of measuring the sorption time constant (Gawor and Skoczylas 2014).
Figure 2
Temperature change when measuring the adsorption and CO2 desorption time constant.
Figure 3
Scheme of the setup for testing the gas filtration coefficient in coal grains.
Figure 4
The relationship between pressure and time in the initial desorption period of CO2 and He; grains 25 - 32 μm.
Figure 5
Amount of desorbed CO2 in the initial desorption period, p0 = 0.25 MPa.
Figure 6
Amount of desorbed CO2 in time, p0 = 0.25 MPa.
Figure 7
Scheme of the measurement station for determining the gas filtration coefficient in coal briquettes.
Figure 8
Saturation of the briquette with carbon dioxide - the bottom of the briquette is closed.
Figure 9
Removing carbon dioxide from briquettes - the bottom of the briquette is closed.