Patent ID: 6967005
Filing Date: 2005-11-22
Classification: B01D,B01J,F23C,F23J

Abstract:
1. In combination, a CFB reactor or combustor arrangement and an SGR system, comprising: a CFB reactor enclosure for conveying a flow of flue gas/solids therethrough, primary particle separator means for separating solids particles from the flow of flue gas/solids, and means for returning the solids particles collected by the primary particle separator means to the reactor enclosure; at least one of superheater and reheater heat transfer surface located downstream of the primary particle separator means with respect to the flow of flue gas/solids; multiclone dust collector means, located downstream of the at least one of superheater and reheater heat transfer surface, for further separating solids particles from the flow of flue gas/solids, and means for returning the solids particles collected by the multiclone dust collector means to the reactor enclosure; an SCR system located downstream of the multiclone dust collector means for removing NO dry scrubber means located downstream of the SCR system; a sorbent contained in the flue gas/solids; particle collector means located downstream of the dry scrubber means, wherein at least a portion of the sorbent contained in the flue gas/solids is introduced into the dry scrubber means, and provides a means for sulfur oxides reduction therein; and means for injecting ammonia into the flow of flue gas/solids upstream of the SCR system.