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Cross current scrubber

The principle behind the cross current scrubber is the absorption of waste contaminants contained in a gaseous phase (process exhaust) and transferring them to a liquid phase. 

In the cross current scrubbers, liquid flows from the top of the scrubber through the packing material with the gas flowing horizontally (or in a cross pattern, hence the name) through the scrubbers.

For some materials, the use of water as the adsorption material is sufficient, however, most materials must be separated by means of chemisorption. The proportion of chemical that needs to be injected will depend on the type of contaminants

Characteristics and features of the atea cross current scrubber:

  • Low pressure loss

  • Small area of space required

  • Low energy consumption

  • Suitable for large gas flow rate systems

  • Suitable for large through-put fluctuations

  • Level control

  • Optional measuring parameters to indicate and control the performance of the scrubber including pH, redox potential, electrical conductivity, density, temperature.

Examples of application:

  • Air humidification

  • Separation of gaseous materials, such as:

 

  • Hydrogen chloride

  • Hydrogen fluoride

  • Ammonia

  • Sulfur dioxide

  • Amines

  • Hydrogen sulfide

  • Chloride

Materials used in the construction of cross current scrubbers include:

  • Thermoplastics (polypropylene, polyethylene, PVDF, etc.)

  • Glass-fiber reinforced plastics (FRP)

Horizontal scrubbers (type SES) are commonly used.