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Methanation
BIOGAZ Project
Power to gas - Power to methane.
The thermochemical recovery of CO2 today is one of the pivotal aspects of the energy transition. Indeed, the latter allows both to considerably reduce CO2 emissions from various industrial sectors and to store in chemical form the surplus electricity that can be produced by ENR. This makes it possible to respond to the time profile of demand and fluctuations in the source (peak).

Our products: Catalytic Methanation Reactors


Our goal : to develop plug and play solutions that can treat CO2 from different industrial environments.


Minerve project Power to Gas
Methanation, a process that converts hydrogen from renewable electricity by electrolysis into synthetic methane by reaction with CO2 on a catalyst, is a promising solution ... and already operational in Germany with the 6 MWe AUDI site. In this context, and in its vision of experimenting with the transitions to be made, AFUL Chantrerie has initiated a power-to-gas demonstrator called MINERVE, on the Chantrerie site.




The electrolyser converts grid electricity into hydrogen by electrolysis of water. The selected electrolyzer is a PEM (proton exchange membrane) electrolyzer. PEM technology divides pure water into hydrogen and oxygen by applying a DC voltage.
The hydrogen produced is then stored in 4 bottles of 50L at 200 bar, i.e. an effective storage volume of 37 Nm3. This storage allows the methanation reactor to operate in nominal mode for more than 15 hours without the electrolyser being started up.
By the methanation reaction, hydrogen and CO2 are converted into synthetic methane in the methanation reactor (0.57 Nm3/h with a consumption of 2.37 Nm3/h of H2 and 0.6 Nm3/h of CO2) which can itself be stored in 8 bottles (capacity of 74Nm3).
The methanation reactor developed by Top Industrie is a fixed bed reactor with electric gas heating and vortex cooling. These devices are less constraining and less dangerous than the classical oil bath devices. The unit is composed of 2 reactors in series in order to obtain the quality of methane compatible with CNG mobility. The installation of the platform is carried out on the roof of the gas boiler room, the H2 storage is located at the foot of the building with the C02 storage. The CNG station is located a few meters away.