Processo di bi-reforming elettrificato a emissioni zero

A process for producing syngas comprising the steps of: a) burning methane or natural gas with oxygen and water steam for producing flue gas comprising CO2 and H2O according to the following reaction: [1] CH4+2O2-→ CO2+2H2O b) mixing the flue gas coming from the previous step with steam and methane; c) carrying out reforming reactions with the stream coming from step b) according to the following schemes: [2] CH4 + CO2 → 2 CO + 2 H2 10 producing a hot stream of low-grade syngas [3] CH4 + H2O → CO + 3 H2 d) cooling the hot stream of syngas coming from the step c) by heat exchange with a water stream which is thereby vapourised, e) separating water from wet syngas coming from step d); f) carrying out electrolysis of a steam stream in a solid oxide electrolytic cell (SOEC), thereby obtaining oxygen gas and wet hydrogen gas according to the following reaction scheme: [4] H2O(g)→ H2+1/2O2 g) separating wet hydrogen from oxygen, h) drying wet hydrogen by water condensation, i) mixing syngas coming from step e) with hydrogen of step h) for producing a high-grade stream of syngas.