Biogas - Typical Composition

Typical composition of biogas produced from household waste

Biogas can be produced from several biomass resources. Typically by anaerobic digestion with an anaerobic bacteria or by fermentation of biodegradable materials such as

  • crops
  • manure
  • sewage
  • municipal waste
  • green waste
  • plant material

Typical composition of biogas produced from household waste is indicated below:

SubstanceWeight (%)
TypicalRange
Ash 25 15 - 40
Carbon 25 15 - 35
Chlorine 0.7 0.5 - 1.0
Hydrogen 3 2 - 5
Nitrogen 0.6 0.2 - 1.0
Oxygen 18 12 - 24
Sulphur 0.003 0.002 - 0.6
Water 20 15 - 35

The energy released by the combustion of methane, hydrogen, and carbon monoxide (CO) in the biogas can be used for any heating purpose. The energy can also be used in gas engines to produce electricity. Compressed biogas can be used to power motor vehicles.

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