In every process involving contact between liquid and flowing gas, tiny mist droplets are carried away with the gas. This phenomenon is called entrainment.
Beginning about 1947, special devices were developed to remove mist from gas streams. Now known as mist eliminators, these devices provide a large surface area in a small volume to collect liquid without substantially impeding gas flow. Mist eliminators coalesce (merge) fine droplets and allow the liquid to drain away. Gas typically flows upward through a horizontal mist eliminator. Mist eliminator is also called mist collector. Boegger offers a full line of mist collectors including continuous duty centrifugals.
Mist eliminators are used to collect light mist and swarf. A number of design layouts and filter choices are provided for both flexibility and expandability.
Mist eliminators consist of pad sets, or a variety of pleated panels. The filter media is normally knitted wire mesh made of metal or synthetic fiber.
· Knitted wire mesh mist eliminators are efficient and economical.
· Porous blankets of knitted metal or plastic wire mesh can be custom-designed for specific applications.
· Mist eliminator is Ideal in absorption and drying towers, evaporators, distillation towers and a wide ranges.
· High collection efficiency.
· Low pressure drop.
· Lowest installed cost.
More recently, advances in technology have enabled substantial progress in mist eliminator designs, materials, and application expertise. New products and methods of use have been found highly effective for many purposes, especially the following:
· Increasing throughput.
· Downsizing new vessels.
· Improving product purity.
· Cutting operating costs.
· Reducing environmental pollution.
· Reducing downstream corrosion.
· Increasing recovery of valuable liquids.