Page 381 - Advanced Mine Ventilation

Ash-Free Oxygen
Dry 2.9 3.7 3.6 2.6 2.3 2.5 2.3

Oxygen (O) 3.3 4.2 4.3 3.5 2.9 2.6 3.5

pct)
(wt Sulfur (S) 0.7 0.5 0.5 0.6 1.7 1.1 0.6
Analysis

Ultimate Nitrogen (N) 1.8 1.5 1.7 1.7 1.3 1.1 1.1

Carbon (C) 82.6 81.0 82.0 82.2 82.6 77.0 83.9

Hydrogen (H) 4.8 4.8 4.5 4.7 4.2 3.9 2.1

Ash 6.9 8.0 7.1 7.3 7.3 14.3 8.9 1987:28.

pct) 9079 R.I.

(wt Fixed Carbon 70.4 69.5 72.7 71.3 73.2 67.5 84.7 USBM
Analysis coal, US

Proximate Volatile Matter Moisture 22.0 21.6 19.2 20.2 18.7 17.6 4.7 of studies combustion

Characteristicsdcont’d SHT 8C 0.7 120 0.9 120 1.1 135 1.3 135 0.9 135 0.6 130 1.7 140 Spontaneous

Seam State CO CO AL AL VA VA PA temperature. CP. Lazzara

Coal Creek Lee 3- 3- (an): self-heating A, Smith
21.2 Rank and Seam Coal: Coal Basind1 Coal Basind2 Coal: Blue Mary Pocahontas Pocahontas Anthracite Anthracite minimum from

Table mvb lvb 1 2 SHT, Adapted