Details:

Personal Author:
Matta, J. E. ; LaScola, John C.Kissell, Fred N.
Matta, J. E. ; LaScola, John C.Kissell, Fred N. Less -
Corporate Authors:
United States. Bureau of Mines.
Description:
"The methane gas emitted from coal samples collected from the conveyor belts dumping into silos was measured by the Bureau of Mines. Approximately 50 pct of the total gas desorbed into a sealed can within 1 week was released during the first 24 hours. No simple correlation between the gassiness of the coal stored and the methane concentration in the silo open space above the coal was found. This was probably because the gassier coals were stored in open-top silos, which were better ventilated. Although the methane concentration in the open space above the coal pile was less than 1 pct for all 34 silos investigated, a methane measurement in the coal pile showed that high methane concentrations can exist. The methane released in the pile appears to accumulate and not liberate freely into the open space above the coal pile. Probably this gas is released during reclaiming operations, but further research is required to substantiate this claim." - NIOSHTIC-2

NIOSHTIC no. 10000621


Subject:
[+]
Bituminous Coal -- Storage.
Coal -- Storage.
Methane.
Mine Gases.

Series:
Report of investigations (United States. Bureau of Mines) ; 8269
Document Type:
Report
Collection(s):
National Institute for Occupational Safety and Health
Main Document Checksum:
[+]
urn:sha256:73f40e3e2a4dda618b7b185a96ca334ca7fc055c4d414d980458ec784f4c6ec7
File Type:

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