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FLEXIFIBER® Type BD (Brownian Diffusion) Mist Eliminator

High collection efficiency on submicron liquid particles; low to moderate pressure drop 

The FLEXIFIBER type BD element uses the Brownian Diffusion mechanism to achieve collection efficiencies of up to 99.95% or higher on all submicron liquid particles down to 0.1 microns. Operating pressure drops are normally designed in the range of 50 to 500 mm (2-20 in) W.G.  

An interesting feature of the FLEXIFIBER Type BD mist eliminator is that, with submicron particles, the collection efficiency actually increases as the gas flow rate decreases through the bed. Increasing residence time in the fiberbed optimizes Brownian movement. 

Type BD elements are cylindrical in shape and are available in a wide variety of materials. The Type BD element with carbon fiber media is recommended if your application contains flourides, a high PH, or is subjected to steam. This will help increase the life expectancy of the element compared to glass fiber media.  

FLEXIFIBER type BD-LdP (low pressure drop) has increased submicron particle collection efficiency with reduced pressure drop compared to conventional fiberbed technology. Because fiberbeds can consume large amounts of energy (such as in chlorine and sulfuric acid production trains), increased efficiency and reduced pressure drop provide significant reductions in operating costs. This technology brings benefits to any process in the forms of decreased investment, lower operating costs, and improved plant performance.  

How it works 
Brownian Diffusion occurs with extremely small droplets that randomly move from side to side, not directly following the path of the gas stream. Typically, the smaller the particle, the greater the Brownian movement. 

Product Benefits

  • Reduce or eliminate visible stack gas plumes 
  • Provide unlimited turndown from design capacity 
  • Achieve guaranteed pressure drop as low as 1.5 in [40 mm] W.G. 
  • Interchangeable with existing fiberbed equipment 
  • High-efficiency capture of submicron mist particles