Nature protection technologies

1.3.2.10. Applying Venturi scrubbers

Part 1. AIR PROTECTION FROM POWER INDUSTRY EMISSIONS

1.3. Sulfur oxide emission reduction

1.3.2. Technologies of sulfur oxide emission reduction

1.3.2.10. Application of Venturi scrubbers

Shmigol I.N., JSC “VTI“

Application of Venturi scrubbers for sulfur dioxide collection is based on washing of flue gases with soda solution accompanied by conversion of the reaction product in calcium sulfate. The main chemical reactions of the technology are the following:

2NaOH + SO2 = Na2SO3 + H2O;

Na2CO3 + SO2 = Na2SO3 + CO2;

Na2SO3 + Ca(OH)2 + 2H2O + 1/2O2 = CaSO4·2H2O + 2NaOH.