Influence of depressurization rate on gas production capacity of high-rank coal in the south of Qinshui Basin, China
SU Xuefeng,LIU Yan,CUI Zhouqi,ZHANG Jianguo,YU Li,WANG Kai
Table 2 Final desorption volume at different decompression rates.
Depressuri-
zation rate/
(MPa·d-1)
Desorption time/h Desorption volume/mL Theoretical adsorption
capacity/mL
Desorption rate/%
3.0 197 2788.2 3046 91.54
1.0 255 2969.5 3046 97.49
0.5 281 2978.7 3046 97.79
0.3 355 2875.5 3046 94.40