METHOD OF EXTRACTING CARBON DIOXIDE FROM FLUE GASES AND DEVICE FOR REALIZING SAID METHOD Russian patent published in 2020 - IPC B01D53/62 

FIELD: chemistry.

SUBSTANCE: invention relates to production of carbon dioxide using fume gases produced as a raw material during combustion of natural gas and liquid hydrocarbons. Method includes stabilization of temperature of flue gases, their purification from nitrogen oxides, absorption and desorption of carbon dioxide with a triple ethanolamine composition, cleaning and regeneration of absorbent, compression of carbon dioxide with its cooling, drying and conversion into liquefied state. Device for implementing the method comprises a flow reactor for catalytic purification of flue gases from nitrogen oxides, heat exchanger for liquefied ammonia evaporation and maintenance of optimum process temperature, gas blower, absorbers, desorber, carbon dioxide compressor, gas drying devices, condenser and refrigerating machine. It includes two absorbers, a boiler-condenser and two apparatus for cleaning absorbent from resin compounds and corrosion products.

EFFECT: technical result is higher efficiency of removing carbon dioxide from flue gases while reducing the effect of waste on the environment and increasing service life of the device.

2 cl, 1 dwg