GAS PURIFICATION METHOD Russian patent published in 2023 - IPC B01D47/06 B01D47/10 B01D53/14 B01D53/78 

FIELD: chemical, metal, oil, and food industries.

SUBSTANCE: invention may be used in chemical, metal, oil, food and other industries. A gas purification method, in which saline solutions are formed or harmful gas components are absorbed by the absorption solution to form water-soluble salts, is proposed. The absorbent liquid is injected into a circulating collector of the first venturi scrubber absorber along the gas path. The injection is controlled via the circulating solution pH value. The second downstream Venturi scrubber is irrigated with water. The first Venturi scrubber-absorber circulating collector liquid level is maintained and controlled automatically by water supply to the second Venturi scrubber-absorber collector.

EFFECT: method prevents the release of absorption liquid droplets and neutralisation products containing dissolved salts into the atmosphere, maintains the gas purification efficiency and also provides for increasing the plant reliability and simplifying the second Venturi scrubber-absorber separator design.

1 cl, 1 dwg