An in-situ diffusion parameter for the Pittsburgh and Pocahontas No. 3 coalbeds.
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 7668, 1972 Jan; :1-13
In this report the importance of diffusion in controlling the emission of methane in mines is examined. An in situ diffusion parameter is defined and calculated for a hypothetical unfractured lump of coal in the Pittsburgh and Pocahontas No. 3 Coalbeds. The values obtained are similar to those obtained with lump coal in laboratory experiments.
Mining-industry; Methane-control; Methane-drainage; Underground-mining; Coal-mining; Mine-ventilation; Mine-gases; Methanes; Explosive-gases; Explosive-atmospheres; Control-technology; Engineering-controls; Explosion-prevention; Explosive-hazards
IH; Report of Investigations
NTIS Accession No.
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 7668