During the combustion of a fuel in a combustion chamber enclosing {TAIL ~ a fluidized bed}, a fuel and {HEAD ~ an absorbent} are supplied to the fluidized bed 
During the combustion of a fuel in a combustion chamber enclosing { TAIL ~ a fluidized bed } , a fuel and { HEAD ~ an absorbent } are supplied to the fluidized bed
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH