5 innovative and cost-effective methods to control oxygen content in biomethane
Wednesday, September 24
By the end of June 2025, more than 730 methanization units will be injecting into the gas networks in France. Around one hundred are directly connected to the NaTran network, and many other sites benefit from our infrastructure through reverse flow stations.
Biomethane is richer in oxygen than natural gas. This is due to the addition of oxygen during its production process to purify biogas, a treatment solution whose efficiency and low cost have enabled the development of the sector.
As the share of biomethane injected into gas networks continues to grow, this high oxygen content is becoming a major issue. Several network interfaces are sensitive to O₂, such as storage operators, adjacent network operators, and certain industrial users.
NaTran supports the biomethane sector and has therefore joined forces with other network operators to explore alternative solutions for biomethane purification. Several innovative and cost-effective methods to control oxygen content have been tested, some of them directly on operational sites. Discover five of them in pictures:
- Use of operating techniques
- Automatic oxygen regulation
- Desulfurization using ferric salts
- Washing-based desulfurization (Clairion solution)
- Washing-based desulfurization (Starklab solution)
