Group of at least two gas-flow reactors supplied with chemical neutralization and/or sorption agent

A gas treatment center consisting of at least one group of at least two gas-flow reactors which are supplied with a gas-flow to be purified and with an agent having at least one of a chemical neutralization and sorption action and of the powdery material type that is capable of adsorbing effluents present in said gas flow by bringing said powdery agent into contact with said gas flow, each of said reactors comprising:

• a) injection means for injecting said powdery agent into the respective reactor;
• b) collecting means for collecting said powdery agent after said powdery agent has been brought into contact with said gas flow, and is laden with effluents in the respective reactor, and
• c) discharging means for discharging said laden powdery agent collected, after having been brought into contact with said gas flow in the respective reactor, said discharging means being connected to said collecting means of the respective reactor,
• wherein said reactors are supplied in parallel with said gas-flow, and said discharging means of each reactor are connected to said injection means of at least one other reactor, so that said laden powdery agent collected after having been brought into contact with said gas-flow into said each reactor is again brought into contact with said gas flow and laden with effluents into said at least one other reactor, except for at least one reactor said discharging means of which feed a main discharging line with said laden powdery agent having been brought into contact with said gas-flow into said at least one reactor.