Patent ID: 7857889

Claim:
A method for purifying exhaust gases from a waste incineration plant by utilizing a sorption method in a circulating fluidized bed, the method comprising supplying fresh sorbent into a fluidized bed reactor and putting the fresh sorbent into contact with the exhaust gases in the circulating fluidized bed, whereby pollutants sorb to the fresh sorbent and a raw gas is purified to result in a pure gas, separating solid matter loaded with the pollutants and discharging it from circulation or recirculating it to the fluidized bed reactor, and wherein a mass flow of the supplied fresh sorbent is regulated as a function of a concentration of the fresh sorbent in the recirculated solid matter and/or at least one sorbed pollutant in the recirculated solid matter; wherein an analysis device is used for determining the concentration of the components in the recirculated solid matter.