Patent ID: 7658897
Filing Date: 2010-02-09
Classification: B01D,F27D

Abstract:
1. A process for treating flue gas from a sintering plant streaming in a flue gas flowing direction in a flue gas duct including a widened section having a diameter greater than an immediately preceding portion and an immediately following portion of the flue gas duct, the process comprising: introducing at a feed position along the flue gas duct away from the widened section dry additive comprising at least an adsorbent; feeding recirculated material to the flue gas duct at a recirculation feed position, the recirculated material being dry additive separated out of the flue gas by a fabric filter and at least partially recirculated to the flue gas duct at the recirculation feed position, wherein the dry additive is introduced in a direction opposite to the direction of flow of the flue gas upstream of the widened section.