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Non-algae feedstock (biogas)
9-10
Technology Description
In an anaerobic digestor, bacteria break down to biomass without oxygen and in the process produce biogas, composed mostly of methane (50-75%) and carbon dioxide (25-45%). Biomass can be in the form of animal manure, organic portion of municipal solid waste (MSW), industrial waste such as dry distillers grain (DDG) from ethanol production, agricultural residues, and energy crops. The biogas can be burned directly, without upgrading to biomethane.
Relevance for Net Zero
Biogas is a low-quality fuel compared to biomethane, and therefore its demand is limited by its limited application.
Key Countries
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