All About the Production Process and Uses of Biogas

Biogas: production process and end uses

• First, we collect organic matter: livestock manure and agricultural residues, waste from the agri-food industry, biowaste generated in urban areas.
• These organic matters go through an anaerobic digestion process: by fermentation at around 42 degrees for around 40 days in the absence of oxygen to produce biogas.
• The biogas is either purified into biomethane, which offers identical characteristics to natural gas, and injected into the gas network as a complement to natural gas, either transported to a combined heat and power plant, where it is burned to produce both electricity and heat.
• Methanization also products digestate: an organic fertilizer for more sustainable agriculture.

Biomethane 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.