EXHAUST GAS CLEANING SYSTEM Russian patent published in 2019 - IPC B01D53/78 B01D53/14 C21B13/00 C22B7/02 

FIELD: technological processes.

SUBSTANCE: invention relates to a system for cleaning exhaust gas from a reducing device. System includes a reducing device configured to perform a reducing process for converting iron oxide into reduced iron, device for extraction of acid gas absorbing acid gas with liquid from exhaust gas, containing solid substances on base of iron and acid gas, released from recovery device, collector of extraction device for collection of solid substances based on iron contained in absorbing liquid, and a return line of the removed substances, on which the iron-based solid substances collected by the collector are removed, wherein the return line is intended for return of removed substances of the extraction device containing previously removed iron-based solid substances to the side of the reducing device.

EFFECT: invention provides efficient utilization of collected iron-based substances from exhaust gas and reduced amount of wastes.

7 cl, 11 dwg