Method for flue gas scrubbing
View Patent ↗A method of scrubbing flue gas includes introducing flue gas comprising an acidic gas through an inlet into a tower; spraying an acid-absorptive fluid into the tower such that the acid-absorptive fluid contacts the flue gas; accumulating the acid-absorptive fluid in a recycle tank portion of the tower; and introducing an oxygen-containing gas into the acid-absorptive fluid in the recycle tank portion of the tower, wherein the oxygen-containing gas is introduced through at least one opening of an aerator, each of the at least one openings are positioned to release the oxygen-containing gas at least at a distance greater than or equal to a predetermined radial distance from the flue gas inlet, the predetermined radial distance being equal to at least 10% of a diameter of the recycle tank portion of the tower.
1. A method of scrubbing flue gas comprising:
introducing flue gas comprising an acidic gas through an inlet into a tower;
spraying an acid-absorptive fluid into the tower such that the acid-absorptive fluid contacts the flue gas;
accumulating the acid-absorptive fluid in a recycle tank portion of the tower; and
introducing an oxygen-containing gas into the acid-absorptive fluid in the recycle tank portion of the tower,
wherein the oxygen-containing gas is introduced through at least one opening of an aerator, each of the at least one opening being positioned to release the oxygen-containing gas at least at a distance greater than or equal to a predetermined radial distance F from the flue gas inlet, the predetermined radial distance F being equal to at least 10% of a diameter D of the recycle tank portion of the tower.
2. A method according to claim 1 , wherein the aerator includes at least one sparger pipe and the at least one opening is disposed along a length of the sparger pipe.
3. A method according to claim 2 , further comprising positioning the at least one sparger pipe parallel to the flow of flue gas from the inlet.
4. A method according to claim 2 , further comprising position the at least one sparger pipe parallel to the flow of flue gas from the inlet.
5. A method according to claim 1 , wherein the predetermined radial distance F is at least 15% of the diameter D of the recycle tank portion of the tower.
6. A method according to claim 1 , wherein the predetermined distance F is at least 20% of the diameter D of the recycle tank portion of the tower.