All fossil fuels contain combustible and incombustible components (also known as diluents)Fossil fuel
Combustible components
Incombustible or diluents
Solid fuels: C,S,H
N,O, ash and moisture
Liquid fuels C,H,S
N,O
Gaseous fuels H2, CO,
N2, CO2, O2, SO2 hydrocarbons, NH3 and H2S
In the table C is carbon, S is sulphur, H is hydrogen, N is nitrogen, O is oxygen. Note that in the solid fuels they are present in the elemental form.
