Abstract: Disclosed is a method and a device for capturing the SO2 present in gases by igneous electrolysis implemented on a group of at least two filtering modules traversed in parallel by the gas flow to be purified, and supplied with a powder material sorbent capable of adsorbing effluents in the gas flow by bringing the sorbent into contact with the gas flow, each filtering module having a unit for collecting the sorbent after it has been brought into contact with the gas flow, in the filtering module, and a unit for discharging the sorbent collected being contact with the gas flow to a unit for injecting same into at least one other of the filtering modules of the at least one series, except for the last filtering module of each series, and, on exiting the last filtering module or modules, the gas flow is sent to a desulfurization unit.

Abstract: Disclosed is a method and a device for capturing the SO2 present in gases by igneous electrolysis implemented on a group of at least two filtering modules traversed in parallel by the gas flow to be purified, and supplied with a powder material sorbent capable of adsorbing effluents in the gas flow by bringing the sorbent into contact with the gas flow, each filtering module having a unit for collecting the sorbent after it has been brought into contact with the gas flow, in the filtering module, and a unit for discharging the sorbent collected being contact with the gas flow to a unit for injecting same into at least one other of the filtering modules of the at least one series, except for the last filtering module of each series, and, on exiting the last filtering module or modules, the gas flow is sent to a desulfurization unit.

Abstract: A method and device for capturing SO2 present in gases originating from cells for the industrial production of aluminum by igneous electrolysis, implemented over a group of at least two reactors passed through in parallel by a gas stream and supplied with a powdered sorption agent capable of adsorbing effluents present in the gas stream by placing the sorption agent in contact with the gas stream, each reactor having collection elements for collecting the sorption agent after contact with the gas stream, at least one of the reactors having discharge elements for discharging the sorption agent after contact with the gas stream to injection elements for injecting into at least another one of the reactors; and desorbing elements located between the discharge elements and the injection elements, for desorbing the SO2 adsorbed by the sorption agent before it reaches the discharge elements.

Abstract: A method and device for capturing SO2 present in gases originating from cells for the industrial production of aluminum by igneous electrolysis, implemented over a group of at least two reactors passed through in parallel by a gas stream and supplied with a powdered sorption agent capable of adsorbing effluents present in the gas stream by placing the sorption agent in contact with the gas stream, each reactor having collection elements for collecting the sorption agent after contact with the gas stream, at least one of the reactors having discharge elements for discharging the sorption agent after contact with the gas stream to injection elements for injecting into at least another one of the reactors; and desorbing elements located between the discharge elements and the injection elements, for desorbing the SO2 adsorbed by the sorption agent before it reaches the discharge elements.