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Fuel Gases and their Combustion Values

Combustion values for some fuel gases like natural gas, propane and butane - Btu per cubic feet

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Combustion or heat values of fuel gases:

Fuel GasCombustion ValueSpecific Gravity
Blast furnace gas 92 3400 1.02
Butane 3184 118600 2
(heavier than air)
Coke oven 570 21200 0.40
Manufactured Gas 500 - 600 18600 - 22300
Natural Gas 950 - 1150 35000 - 42800 0.660 - 0.708
(lighter than air)
Propane 2504 93300 1.77
(heavier than air)
Propane-Butane Mix 2500 - 3200 93000 - 119000
Produces Bituminous 163 6000 0.86
  • 1 Btu/ft3 = 8.9 kcal/m3 = 3.73x104 J/m3
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