Method for cleaning exhaust gases in a waste incinerator plant

摘要

The mass flow of fresh sorbent is regulated as a function of the concentration of fresh sorbent and/or sorbed pollutant in the recirculated solid matter. The concentration of fresh sorbent or sorbed pollutant is determined by utilizing a Fourier Transform near-infrared spectrometer. The determination is carried out using a sample of solid matter withdrawn from the circulation by utilizing a cyclone (40). The mass flow of solid matter discharged from the circulation is also regulated as a function of the concentration of fresh sorbent and/or sorbed pollutant in the recirculated solid matter. An independent claim is included for an exhaust gas prufication system.