COMPARISON OF FUEL GAS PROPERTIES |
---|
COMBUSTION PROPERTIES |
FXD+ |
FXD +Propane | FXD +Butane | ACETYLENE | MAPP GAS | NATURAL GAS | PROPANE | BUTANE | APACHI/HPG |
---|---|---|---|---|---|---|---|---|---|
Flame Temp in Oxygen, F |
5900 + |
5900 + |
6000 |
5875 |
5301 |
4600 |
4579 |
4925 |
5300 |
Total Heating Value after |
28520 |
22896 |
22743 |
21500 |
21100 |
24800 |
19768 |
19494 |
22100 |
Heating Value of gas, BTU/ft3 |
1108 |
2700 |
3603 |
1480 |
2380 |
1050 |
2560 |
3374 |
2400 |
Burning Velocity in |
16.6 |
14.3 |
12.5 |
22.7 |
15.4 |
15.2 |
12.2 |
11 |
15 |
Formation Reaction |
Exothermic |
Exothermic |
Exothermic |
Endothermic |
Endothermic |
Exothermic |
Exothermic |
Exothermic |
Endothermic |
Primary Combustion |
68 |
350 |
360 |
505 |
484 |
55 |
295 |
315 |
438 |
Secondary Combustion |
1036 |
2270 |
3240 |
1134 |
1896 |
995 |
2268 |
3114 |
1962 |
Combustion Ratio, |
2:1 |
2.06:1 |
1.9:1 |
1.5:1 |
3.5:1 |
2:1 |
4.7:1 |
1.8:1 |
3.1:1 |
SAFETY |
Stable |
Stable |
Stable |
Unstable |
Relatively |
Stable |
Stable |
Stable |
Stable |
Explosive Limits |
5.0 - 59 |
2.5 - 58 |
1.7 - 60 |
3.0 - 93 |
2.5 - 60 |
5.0 - 59 |
2.4 - 57 |
1.8 - 60 |
2.0 - 57 |
Explosive Limits |
5.3 - 14 |
2.25 - 9.40 |
1.7 - 9.0 |
2.5 - 80 |
3.4-10.8 |
5.3 - 14 |
2.3 - 9.5 |
1.8 - 8.4 |
2.0 - 10.0 |
Maximum allowable |
Line |
Cylinder |
Cylinder |
PSI 15 |
Cylinder |
Line |
Cylinder |
Cylinder |
Cylinder |
Tendency to Backfire |
Slight |
Slight |
Slight |
Considerable |
Moderate |
Slight |
Slight |
Slight |
Slight |
Reactions with |
Few Restrictions |
Few Restrictions |
Few Restrictions |
Copper & |
Copper & Silver Alloy |
Few Restrictions |
Few Restrictions |
Few Restrictions |
Few Restrictions |
PHYSICAL PROPERTIES |
---|
FXD+propane | Acetylene | MAPP | NG | Propane | APG | |
Specific Gravity of Liquid (60F) |
0.527 |
-- |
0.576 |
-- | 0.507 | 0.527 |
Pounds Per |
4.24 |
-- |
4.8 |
-- |
4.22 |
4.38 |
Cubic Feet Per |
8.46 |
14.5 |
8.85 |
23.6 |
8.45 |
9.2 |
Specific Gravity of |
1.55 |
0.906 |
1.48 |
0.555 |
1.55 |
1.42 |
Vapor Pressure |
119 |
-- |
94 |
-- |
120 |
135 |
Boiling Range at |
-45 |
-119 |
-36 to -4 |
-250 |
-44 |
-50 |
Latent Heat of |
183 |
-- |
227 |
-- |
184 |
187 |