FIELD: process engineering.
SUBSTANCE: invention relates to selective recovery and removal. Proposed multistage device and method exploits aerodynamic reactors and aerocoagulators. Said devices are connected in series for selective recovery and removal of carbon dioxide gas, mercury, metals and aerosols of solid disperse particles by circulation system of chemical generation-recovery. Said system used solution of alkaline metal chloride after multiple oxidations of mercury vapors and oxides in selective recovery and removal with subsequent oxidation to alkaline metal sulphate and nitrate by evaporation and crystallisation. Carbon dioxide recovery and removal are performed by selective thermal decarbonisation from alikaline fluid with subsequent extraction as gas flow.
EFFECT: extraction of various contaminants from flue gases as commercial byproducts.
