Page 253 - Advanced Mine Ventilation

Reservoir Properties of Coal Seams
Seams (%) Composition a Value Calorific BTU/ft 3 CO 2 H 2 C 3 H 8 C 2 H 6 CH 4 (ft 3 /t) 949e1058 0.2e0.5 0.02 Trace 1e2 97e98 900e1058 e e e 0.01 99.20 1020 0.1e0.2 e Trace 0.02 95e98 1024 e e e 0.01 96 949e1000 2e11 e Trace 0.25e0.5 89e95 938 12 e e e 88 100%. total the mak
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 ,