Research Article

A Study of the Differences in the Gas Diffusion and Migration Characteristics of Soft and Hard Coal in High Gas Coal Seams

Table 1

Pore structural parameters of the soft coal and hard coal in the different coal seams.

Pore structural parameters (m2/g)Soft coal and hard coal bodies of the different coal seams
No. 6 softNo. 6 hardNo. 11 softNo. 11 hard

BET specific surface areas3.54211.80081.61790.8278
BJH specific surface areas2.96421.45931.49210.453