Dürr - Model Sorpt.X SW - Wet Scrubbers for Acid Gas Absorption
From Exhaust Gas and Air Pollution Control – Sorpt.X – Sorptive Processes
Dürr provides a variety of Sorpt.X SW wet scrubbers including spray tower, tray tower and packed tower designs for industrial acid gas emissions control.
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Benefits
- Simplicity of construction and operation
- Flexibility of operation (gas volume, acid gas concentration, etc.)
- Low pressure drop
- High removal efficiencies for a variety of acid gases, including SOx (SO2 and SO3), HF, and HCl
- Not susceptible to plugging
- Small footprint
- Low capital equipment and installation cost
Functionality
Functionality Sorpt.X SW
The principle of acid gas removal is to expose the acid gas to an alkaline agent and by chemical reaction form a stable salt, which subsequently can easily be removed with the liquid. This is accomplished in a spray chamber, most often a vertical tower, where water containing the reagent provides the necessary contact surface for the chemical reaction to take place.
The most common reagents include:
- Sodium hydroxide (caustic) NaOH
- Sodium carbonate (soda ash) Na2CO3
- Magnesium hydroxide Mg(OH)2
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