Page 254 - Advanced Mine Ventilation
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Reservoir Properties of Coal Seams 231
Value
Calorific BTU/ft 3 949e1058 900e1058 1020 1024 949e1000 938
CO 2 0.2e0.5 e 0.1e0.2 e 2e11 12
H 2 0.02 e e e e e
(%)
Composition a C 3 H 8 Trace e Trace e Trace e 100%. total
C 2 H 6 1e2 0.01 0.02 0.01 0.25e0.5 e the make
to
CH 4 97e98 99.20 95e98 96 89e95 88 needed are
Seams (ft 3 /t) but listed
Coal not
US Content are
of Gas 450e650 200e500 200e300 200e500 100e250 100e300 contents
Composition argon and
and bituminous Anthracite,
Content Rank LV LV LV LV HVA Sub Volume
Methane (NM) High - HVA
Coalbed (VA) #3 (OK) (PA) (AL) (WV) #8 Formation Volume,
14.1 Seam Pocahontas Hartshorne Kittanning Lee Pittsburgh Mesaverde Low -
Table Coal Mary a N 2 LV ,
