By the end of June 2025, more than 770 methanization units were injecting biomethane into French gas networks, and around 100 sites were directly connected to the NaTran network. With the growth of this sector, the naturally high oxygen content of biomethane is becoming a real issue: certain infrastructures and industries are sensitive to O₂, making purification essential.
At NaTran R&I, we have taken up this challenge and developed innovative solutions to ensure safe and efficient injection of biomethane into the grid. Several technologies have been tested in the field, five of which stand out in particular:
Corentin Dussenne, research engineer at NaTran R&I, explains this innovation:
"We replaced the activated carbon with an iron oxide-based filter, capable of eliminating hydrogen sulfide even in the absence of oxygen. Field tests confirm our laboratory results: purification is effective, oxygen content is controlled and operating costs are reduced."
💡 To find out more and discover these innovations in pictures, watch the video here: https: //www.youtube.com/watch?v=Yhpgolw_1f4
