Bright Biomethane constructed a new biogas upgrading system in a small village in the north of Scotland. The system facilitates production of Renewable Natural Gas from biogas, which is produced from various waste residues.

What makes this system unique, is its ability to expand production of RNG by adding additional upgrading membrane modules. This system will initially produce 374 SCFM of RNG (600 Nm³/hr biomethane) from 623 SCFM of biogas (1,000 Nm³/hr raw biogas), but can be extended in the future to produce 450 SCFM of RNG (720 Nm³/hr biomethane) from 748 SCFM of biogas (1,200 Nm³/hr raw biogas).

The produced RNG will be directly injected into the national grid and is sufficient for supplying roughly 2,600 Scottish households with green gas, used for cooking and heating. After the installation of additional upgrading modules, another 500 households can be supplied with green gas. Alternatively, the produced gas the can also be used as CNG (vehicle fuel).

In addition to the production of RNG, the system can also be extended with a Bright CO2-liquefaction system to recover and liquefy the CO2.