Types of Mist eliminators

The following types of mist elimiantors are most common.

Vane impingement mist eliminators are widely used to separate entrained liquid

droplets from gas in which in the droplets are 10μm or larger. Many manufactures claim 100% removal of entrained droplets 10μm or larger in size and a guaranteee of entrainment not to exceed 0.1gal/MMscf is often common.

The efficiency of these units decreases rapidly with the presence of particle sizes lower than 10μm. although vane impingement is a better choice than wire mesh mist eliminators in the presence of solid particles, the efficiency of the former is also reduced substantially when small solid particles are encountered in the absence of a liquid. Unlike wire mesh units, liquid drainage in the vane mist eliminators occurs outside the gas flow, thereby eliminating reentrainment of the liquid. Also the drawing takes place at a right angle to the directions of gas flow through the separator.