The Stamicarbon Strip Venturi Scrubber – A New Concept of Dust and Fume Extraction (Patent Pending)

A new scrubber design has been developed by Stamicarbon for the dedusting of large-scale particulate emissions such as from fertilizer prilling towers and rotary dryers. This paper discusses the operating principle and a number of improvements such as the use of two interactive auxiliary media and of strip venturis, which make for high flexibility with respect to capacity, pressure drop and collection efficiency. Re-entrainment of the concentrated wash liquor is negligible thanks to a specially designed demister. The upscaling factor is unity, which means that commercial units are essentially identical to the pilot unit. Consequently, the pilot unit can be used for the purpose of determining the maximum energy economy at the desired collection efficiency for any service. Higher capacities can be attained through paralleled operation. A number of experimental results are discussed.