How Does a Packed Bed Scrubber Work?

How Does a Packed Bed Scrubber Work?A packed bed is a hollow tube, pipe or another vessel that is filled with a packing material. It can be designed with structured packing or this packing can be filled with a small object such as Raschig rings. Packed bed may contain catalyst particles or adsorbents such as zeolite pellets, granular activated carbon, and suchlike. Packed bed were created to improve contact between two phases in a chemical or similar process. They can be used in a chemical reactor, a distillation process, or a scrubber, also beds have been used to store heat in chemical plants.

The packed bed scrubbers are designed to remove gaseous or vaporous pollutants from an air stream. The process is accomplished by contacting the contaminated air stream with a scrubbing liquor that absorbs or chemically reacts with the pollutants. The cleaned air is then discharged to the atmosphere and the contaminated scrubbing liquor is either disposed of in the approved can be recovered and reused in the original on other processes.

There are two types of packed bed scrubbers:

  • Vertical Packed Bed Scrubbers

In the vertical counter-current design, gas flows upward while scrubbing liquid flows down through banks of sprays. The absorption of gases takes place in the scrubbers random packing section and scrubbing liquid is introduced into a liquid through or spray distribution system. A high-efficiency mist eliminator removes entrained liquids. Clean gas exists at the top of the vessel.

  • Horizontal Packed Bed Scrubbers

In the horizontal design, gas flows horizontally while scrubbing liquid flows down through a liquid distribution system. The scrubber includes a random packing section where the absorption of gases occurs. A high-efficiency mist eliminator removes entrained liquids. An integral sump is located at the base of the packing section, eliminating the need for an external tank.

Multi-vortex wet air scrubber is a new type of wet air scrubber that is devoid of many wet air scrubbers’ drawbacks while operating at the same efficiency. Scroiler™ can replace any wet air scrubber as a whole, and in some cases, we can use old scrubber – primarily it’s body – as a basis for a Multi-vortex wet air scrubber system. Being a new type of wet scrubber, Multi-vortex wet air scrubber cleans air from gases, dust, vapors and other admixtures using water or other cleaning liquid. Multi-vortex wet air scrubber produces the cleaning mist differently from other scrubber systems, which results in running costs that are much lower than for a common wet scrubber.

If you would like to purchase Multi-vortex wet air scrubber, please contact us at

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