LAB SecoLAB - Direct Injection of Dry Powdered Reagent System

The SecoLAB ® system uses a direct injection of dry powdered reagent (hydrated lime and activated carbon) into the flue gas duct. The acid gases are neutralized through dry reactions, and the resulting particulates are collected by a high-efficiency bag house filter. To get better removal efficiency and less reagent consumption, a high rate of residue is recirculated into the LAB-Loop ® reactor, where it is mixed again with flue gas and can react with acid pollutants. To improve the reaction the residues are getting into contact with a dedicated flow of water into a humidification screw before being transported back into the LAB-Loop ®.