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Venturi Scrubbers

The Venturi Scrubber is used in environments where there is a need to reduce the particle content in a contaminated gas.

The venturi tube consists of three sections: the conical taper section, the cylindrical neck and the conical outlet extension (diffuser).

In the venturi scrubber, gas and liquid are fed into the scrubber in the same direction (co-current manner). By passing the gas stream through the conical taper section and through the narrow throat, an area of high velocity flow and turbulence is created. On leaving this compressed zone, the gas-liquid mixture expands as it passes through the conical outlet extension. In this zone, particles are captured by the scrubbing liquid at a very high efficiency. In general, the smaller the particle the greater the pressure drop required for efficient transfer.

Venturi scrubbers can be designed to capture sub-micron particulate matter. They are very robust, easy to operate and can be supplied with adjustable throats for added scrubbing flexibility.

Venturi scrubbers do not break down as there are no mechanical moving parts. Their inherent large orifices ensure continuous clog free operation. Compared to other particulate scrubbers, venturis are maintenance free and offer the lowest cost of ownership for most applications.

Where venturi scrubbers are used as a stand-alone step, the venturi tube will typically be connected to a water trap. Venturi scrubbers are also commonly used as a pre-treatment step before a packed bed scrubber.

Characteristics and features of the atea venturi scrubber:
  • Small space requirement
  • Single or multiple stages
  • High efficiency removal of particles
  • Particles do not adhere to the inside of the scrubber (no problems with “clogging”)
  • No moving parts
  • Minimal maintenance required
  • Ease of operation / user friendly
  • Inexpensive

Examples of application:

  • Separation of even the finest types of dust
  • Aerosol separation
  • Gas quenching
  • Air humidification

Construction material:

  • Thermoplastics (polypropylene, polyethylene, PVDF, etc.)
  • Duro-plastics
  • Glass-fiber reinforced plastics (FRP)
  • Steel and other alloys
  • Steel with rubber lining
  • Titanium

atea venturi scrubbers are available in standard pre-engineered sizes. However, we are able to design scrubbers to meet your specific requirements.

As with all of our systems, atea engineers will provide you with a complete service; from process engineering, concept design, detail design to the supply, fabrication, assembly and commissioning of the systems. For more information, please refer to our services