Patent ID: 8770497

Claim:
A process for treatment of a flue gas, comprising: placing a device for distributing a gas loaded with solid particles inside a duct through which a flue gas to be treated travels, wherein the device comprises a pipe ( 1 ) provided with at least one inlet orifice ( 2 ) and with a series of outlet orifices ( 3 ) spread along the pipe ( 1 ) and placed in the side wall of said pipe, wherein the pipe has an open downstream end, acting as supplementary outlet orifice ( 7 ) whose diameter is less than the diameter of the pipe ( 1 ), and wherein at least one deformed section ( 4 ) of the wall of the pipe, located downstream of at least one outlet orifice ( 3 ) and limited by a section ( 5 ) of the edge of such outlet orifice ( 3 ), has a concave shape such that said section ( 5 ) of the edge of this outlet orifice ( 3 ) is positioned inside the pipe ( 1 ) so that, when the device is in service, the flow direction of a gas loaded with solid reactant particles exiting such outlet orifice ( 3 ) and travelling along said deformed concave wall section ( 4 ), is controlled by the shape of said section ( 5 ) of the edge; introducing the gas stream loaded with solid reactant particles into the inlet orifice ( 2 ) of the pipe ( 1 ) so as to distribute said loaded gas stream homogeneously in the duct; reacting the solid reactant particles with the flue gas in order to treat said flue gas; and separating said treated flue gas from the solid reactant particles.