Biogas is produced from the decomposition of organic materials. These residues are placed in a biogas digester in the absence of oxygen. With the help of a range of bacteria, organic matter breaks down, releasing a blend of gases: 45 85 vol% methane (CH4) and 25 50 vol% carbon dioxide (CO2). The output is a renewable gas which can be used for multiple applications.
If we upgrade biogas, we obtain biomethane. This purified form of raw biogas can be used as a natural gas substitute: CO2, H2O, H2S and other impurities are removed during biomethane production, leaving a high-caloric, pure gas.
