Gaseous Fuels and Chemical Composition

Chemical composition of some common gaseous fuels - coal gas, natural gas, propane and more

Chemical composition of some common gaseous fuels are indicated in the table below:

Composition (%)
Fuel Carbon Dioxide
(CO2)
Carbon Monoxide
(CO)
Methane
(CH4)
Butane
(C4H10)
Ethane
(C2H6)
Propane
(C3-H8)
Hydrogen
(H2)
Hydrogen Sulfide
(H2S)
Oxygen
(O2)
Nitrogen
(N2)
Carbon Monoxide   100                
Coal Gas 3.8 28.4 0.2       17.0     50.6
Coke Oven Gas 2.0 5.5 32       51.9   0.3 4.8
Digester Gas 30   64       0.7 0.8   2.0
Hydrogen             100      
Landfill Gas 47 0.1 47       0.1 0.01 0.8 3.7
Natural Gas 0 - 0.8 0 - 0.45 82 - 93   0 - 15.8   0-1.8 0 - 0.18 0 - 0.35 0.5 - 8.4
Propane Gas       0.5 - 0.8 2.0 - 2.2 73 - 97        

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