EXHAUST GAS CLEANING DEVICE AND CO EXTRACTION DEVICE USING IT Russian patent published in 2019 - IPC B01D53/14 B01D53/56 B01D53/62 B01D53/78 

FIELD: technological processes.

SUBSTANCE: invention relates to waste gas purification device and device for extraction of carbon dioxide. Exhaust gas purification device comprises nitrogen oxides absorption unit configured to absorb and remove nitrogen oxides from exhaust gas by means of liquid absorbing nitrogen oxides by introducing exhaust gas released from fuel combustion system device and comprises nitrogen oxides and carbon dioxide, a waste gas discharge line for discharging the cleaned exhaust gas, a nitrogen oxide absorbing fluid circulation line which connects the lower part and the upper portion of the nitrogen oxides absorption unit, a nitrogen oxide absorbing liquid collection line which is branched from the liquid circulation line, a nitrogen oxide absorbing liquid heating/regenerating unit configured to produce a released gas containing nitrogen monoxide and carbon dioxide, and regenerated liquid absorbing nitrogen oxides by heating and regenerative treatment of collected nitrogen oxide absorbing fluid, a line of released gas for introduction of released gas from unit of heating/regeneration of liquid to exhaust line of exhaust gas and line of outlet of regenerated liquid for input of regenerated liquid absorbing nitrogen oxides from unit of heating/regeneration of liquid into line of liquid circulation.

EFFECT: invention enables reuse of liquid absorbing nitrogen oxides during removal of nitrogen oxides from exhaust gas and reduced residue fraction during regeneration treatment, elimination of decomposition of carbon dioxide-absorbing liquid and efficient removal of carbon dioxide from exhaust gas.

10 cl, 6 dwg