Patent ID: 7033548

Claim:
A system for dry removal of target pollutants from gases, comprising: A. at least one feeder containing a supply of sorbent, the feeder being configured to handle and feed oxides of manganese which, upon regeneration, are in particle form and are defined by the chemical formula MnO X , where X is about 1.5 to 2.0 and wherein the oxides of manganese have a particle size of less than about 0.1 to about 500 microns and a BET value ranging from about 1 to about 1000 m 2 /g; B. a first reaction zone configured for introduction of sorbent and a gas containing at least first and second target pollutants, where the gas is introduced and contacted with the sorbent for a time sufficient to effect capture of at least the first target pollutant; C. a second and a third reaction zones each connected to the first reaction zone by a common conduit through which the gas passes from the first reaction zone and configured for introduction of sorbent from at least one feeder and the gas passing from the first reaction zone, where the gas passing from the first reaction zone is introduced and contacted with the sorbent for a time sufficient to effect capture of a least the second target pollutant; D. a diverter valve positioned in the common conduit so as to direct the gas from the first reaction zone to the second reaction zone and/or the third reaction zone, the diverter valve having variable positions, in one position gas from the first reaction zone is directed to the second reaction zone, in another position gas from the first reaction zone is directed to both the second and third reaction zones, and in a further position gas from the first reaction zone is directed to the third reaction zone; and E. a controller for simultaneously monitoring and adjusting system operational parameters, the controller providing integrated control of system differential pressure and other operational parameters selected from the group consisting of first target pollutant capture rate, second target pollutant capture rate, gas inlet temperature, feeder rate and any combination thereof, wherein differential pressure within the system is regulated so that any differential pressure across the system is no greater than a predetermined level and target pollutants are removed at their targeted capture rate set points.