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Joint research unit UPPA/CNRS - Institute of analytical sciences andphysical chemistry for the environment and materials (IPREM)

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  • > ORHYON Chair - Micro-organismes et réactivité de l’hydrogène dans le sous-sol

ORHYONMicro-Organisms and Reactivity of Hydrogen in underground

Hydrogen (H2) is a very promising resource but H2 is mainly obtained by hydrocarbon reforming, though it can also be generated by water electrolysis using the excess of energy produced by renewables.

It can be transported and stored in large amounts into underground natural reservoirs, such as aquifers. Although quantities remain to be determined, H2 is also produced as a geological resource from natural emissions.

The ORHYON industrial chair, funded by the ANR and Engie, is based on the complementary strengths of Engie, the UPPA and the IFPEN. This project, in line with the partners activities, will focus on H2 mobility and bio-chemical reactivity in natural porous media, from deep environments to surface.

The results will lead:

  • to a better understanding of the processes controlling H2 migration and retention in geological formations;
  • to new tools and methodologies to reduce the risks associated with geological storage;
  • to provide technical guidance for its exploration and production.



Anthony Ranchou-Peyruse is a member of the IPREM.

As part of his research activity, he is interested in understanding the functioning of deep continental microbial ecosystems and has been collaborating for more than 10 years with industrialists exploiting geological resources.