METHOD FOR CLEANING THE EMISSIONS OF A COAL PITCH GRANULATION PLANT Russian patent published in 2021 - IPC B01D53/44 B01D53/72 B01D53/74 

FIELD: gas-air mixture purification.

SUBSTANCE: present invention relates to methods for cleaning gas-air mixtures from organic resins and benzapyrene and can be used at enterprises of the chemical and chemical-recovery industries. The invention relates to a method for cleaning emissions from a coal pitch granulation plant, including moving emissions through a pipeline using steam jet ejectors with saturation of emissions with hot water vapor and heating to a temperature of 80-90°C, followed by cooling in a refrigerator to a temperature of 35-45°C. After condensation, the liquid and gas phases are separated, the gas phase with the remaining impurities of organic resins and benzapyrene is fed to a gas separator, in which the liquid and gas phases are additionally separated with the direction of the liquid phase consisting of organic substances and water, after condensation and separation into the collector, and the purified gas phase into the atmosphere.

EFFECT: simplification of the technological process while improving the quality of cleaning emissions from organic resins and benzopyrene and reduction of material and financial costs.

1 cl, 1 dwg