Bright Biomethane constructed a biogas upgrading system in France. The system facilitates production of biomethane from biogas, which is produced from various waste residues.
Next to the MICROFERM+ plant, which is specially designed for on-farm anaerobic digestion of liquid and solid agricultural feedstock, Bright has build a PurePac Compact. A maximum of 7,400 tonnes of mainly cattle manure and maize silage is anaerobic digested annually and produces biogas. Bright’s biogas upgrading system upgrades 100 Nm³ biogas to 55 Nm³ biomethane each hour.
The produced biomethane is directly injected into the national grid and is used for cooking and heating. Alternatively, the produced gas the could also be used as CNG (vehicle fuel). In addition to the production of biomethane, the system can also be extended with a Bright CO₂-liquefaction system to recover and liquefy the CO₂.