Compressed Bio-gas

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  • Bio-gas is produced naturally through process of anaerobic decomposition from waste and bio-mass sources like agriculture residue, cattle dung, municipal solid waste, sugarcane press mud, sewage treatment plant (STP) waste, etc.  
  • It is called CBG after biogas is purified and compressed, which has pure methane content of over 95%.
  • CBG is exactly similar to commercially available natural gas in its composition and energy potential.
  • It has calorific value (~52,000 KJ/kg) and other properties are similar to CNG.
  • CBG can be used as alternative, renewable automotive fuel.  
  • It has potential to replace CNG in automotive, industrial and commercial uses in the coming years, given the abundance of biomass in the country.
  • Advantages of converting agricultural residue, cattle dung and municipal solid waste into CBG on commercial scale are
    • It results in responsible waste management, reduction in carbon emissions and pollution.
    • It generates additional revenue source for farmers.
    • It boosts entrepreneurship, rural economy and employment.
    • It supports national commitments in achieving climate change goals
    • It also helps in reduction in import of natural gas and crude oil.
    • It also serves as buffer against crude oil and gas price fluctuations.

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