All About the Production Process and Uses of Biogas
07/12/2024
Biogas, a renewable gas, is produced by the breakdown of organic waste. Injected into gas networks in the form of biomethane, it contributes to the decarbonization of natural gas uses. How is biogas produced? What are its uses?
TotalEnergies
Biogas: production process and uses
How is biogas produced?
- Collection of organic matter:
Livestock effluents and agricultural residues, waste from the agri-food industry, biowaste from local authorities. - Methanization process
Fermentation of organic matter at around 42 degrees for around 40 days in the absence of oxygen to produce biogas. - Capture of the biogas, which is then used either in a cogeneration unit or to produce digestate, an organic fertilizer for more sustainable agriculture.
- Purified, the biogas becomes biomethane, with characteristics identical to those of natural gas.
Biomethane is injected into gas networks as a complement to natural gas, helping to reduce its carbon intensity.
It can then be used :
- As a complement to natural gas in industrial processes
- As a complement to natural gas for domestic use
- To produce bioGNC or bioGNL, alternative fuels for low-carbon mobility.
When it leaves cogeneration units, biogas is used to produce renewable electricity and heat.