composition
- Most organic materials undergo a natural anaerobic digestion in the presence
- of moisture and absence of oxygen and produce biogas.
- The biogas so obtained is a mixture of methane : 55-65% and
- Carbon dioxide : 30-40%.
- The biogas contains traces of Hydrogen, Hydrogen sulphide and Nitrogen.
- The calorific value of biogas ranges from 5000 to 5500 Kcal/Kg.
- The biogas can be upgraded to synthetic natural gas (SNG) by
- removing Carbon dioxide and Hydrogen sulphide.
