FACILITY AND METHOD FOR RECOVERING GASEOUS SUBSTANCES FROM GASEOUS CURRENTS

摘要

The invention allows CO2 to be recovered from combustion gases with large cost-savings in relation to the use of chemical absorption, without producing environmentally harmful substances. The facility comprises: a) a first reactor (5) for receiving a first gaseous inflow current (6) comprising CO2, said first reactor (5) containing adsorption materials (7) for adsorbing CO2 from the first inflow current (6), producing a first outflow current (8) with a lower CO2 concentration than that of the first inflow current (6), and b) first depression means (12) for triggering a depression in the first reactor (5) for the desorption of the CO2, producing a second outflow current (13) with a higher CO2 concentration than that of the first inflow current (6). The adsorption-desorption can be iteratively repeated in a second reactor (15) and in successive reactors.