GreenGas demonstrates the strategic potential of syngas.
The GreenGas project has taken shape around the methanation reactor andCO2 capture membranes whose research work Gaznat has been supporting and following for several years. Based on these two promising innovations, GreenGas has been built to meet the Aigle site's electrical and thermal energy needs by integrating a Power-to-Gas installation.
The nanopore graphene membranes enable the capture ofCO2 from flue gases emitted by heat-force couplings used to produce thermal and electrical energy. The captured carbon dioxide is used to produce synthetic methane.
The catalytic methanation reactor produces synthesis gas from the combination of hydrogen andCO2, according to the Sabatier reaction. It also represents a major technological breakthrough, as it has the high performance to convert 99% ofCO2 in a single pass.
The GreenGas project aims to demonstrate the key role that carbon dioxide-neutral renewable gases (hydrogen and syngas) could play in the future. Indeed, various studies show that renewable electricity production will be increasingly in surplus during the summer months. The intermittency of these energies, particularly in winter, will also need to be countered by finding ways of storing energy in large quantities. Storing this electricity in the form of syngas is a major challenge if we are to achieve a low-carbon energy mix, and adjust supply to demand to manage seasonal variations in demand.
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