Natural gas is mostly composed of methane and accounts for 25 % of the primary energy consumed in the world, totaling 4,038 billion m 3 in 2021. The current extraction of natural gas is primarily sourced from fossil fuels. However, efforts to transition towards more sustainable productions have led to the development of alternative methods. Some companies aim to reduce their carbon footprint by producing and using local, low-carbon energy. Biogas facilities employ anaerobic digestion to produce methane, 2 and methane can also be produced by the chemical hydrogenation of CO2 to methane (the Sabatier reaction). The former method relies on methanogens, capable of digesting organic wastes in anaerobic conditions. This process produces methane in a mixture with CO2, which requires further purification. Conversely, the direct CO2 hydrogenation to methane, often demands harsh conditions (200-400°C, 5-15 bar).