Pollutant-laden gas enters at the bottom
Pollutant laden gases enter at the bottom of the packed tower and rise upward.
- Tower base — gas inlet
Wet Scrubbers
Packed Bed Scrubber Gas absorption, engineered to your process
Designed to neutralize many gaseous pollutants, packed bed scrubber offers a compact design and low capital cost.
Nederman MikroPul Packed Tower systems can be applied as gas absorbers, coolers, air humidifiers, or condensers. They are widely applied in the field of purification of industrial gases. Systems are custom engineered for the application.
Definition
What is a packed bed scrubber?
The packed bed scrubber is a common form of wet scrubber for industrial applications. They remove gaseous pollutants from airflows.
When properly designed and built by experienced air pollution engineers, these scrubbers capture and neutralize dangerous and poisonous gases from air streams before expelling clean air into the atmosphere.
Preferred over plate and tray designs
Packed bed scrubbers are generally favored over older designs such as “plate” or “tray” scrubbers.
ALSO KNOWN AS
Packed tower scrubber
Packed column scrubber
Gas absorption tower
Product Selection
Why do I need a
Packed Bed Scrubber?
Nederman MikroPul packed bed scrubber is a cost effective solution to treat gaseous pollutants. Nederman MikroPul packed bed scrubber has been successfully utilized for combustion, reagent preparation, odor control and incineration applications. Our experienced engineers will design vessel, packing and system components to suit your specific application.
1800 °F
Maximum inlet gas temperature handled
Maximum inlet gas temperature handled
Basic & acidic
Handles high concentrations of both contaminant types
Handles high concentrations of both contaminant types
Compact & low cost
Compact design and low capital cost
Compact design and low capital cost
Custom engineered
Vessel, packing and system components designed to your application
Vessel, packing and system components designed to your application
Principle of operation
How does a packed bed scrubber work
Gas and scrubbing liquid travel in opposite directions through the column. Because the gas gets cleaner as it climbs while the liquid gets more loaded as it falls, the gas always meets fresher solvent than the stage below it.
Rising gas meets liquid draining down the column
The gas makes contact with the scrubbing liquid draining down through the packed column. Since the pollutant concentration decreases as the gas rises, there is constantly fresher solvent available for contact, resulting in an efficient removal of contaminants.
- Packed section — counter-current contact
Suspended droplets are stripped from the clean gas
Finally, the fine moisture droplets, still suspended in the cleaned gas stream, are removed by a mist eliminator.
- Above the bed — mist eliminator
Scrub liquid is collected and recycled
Scrub liquid from the eliminator is collected in an integral reservoir and recycled to the tower.
- Tower base — integral reservoir
Reagent is dosed on demand under pH control
Makeup liquid is constantly introduced, and reagent is added on demand using a dosing pump controlled by a pH monitor.
- Liquid circuit — makeup and dosing
Configurations
Four uses, one packed tower platform
Nederman MikroPul Packed Tower systems can be applied as gas absorbers, coolers, air humidifiers, or condensers. They are widely applied in the field of purification of industrial gases.
Gas absorber
Transfers a target gaseous contaminant out of the gas stream and into the scrubbing liquid across the wetted packing.
Cooler
Drops the temperature of a hot gas stream by direct contact with the recirculating liquid before downstream equipment.
Air humidifier
Raises the moisture content of the gas stream by evaporative contact as it passes up through the packed section.
Condenser
Condenses vapor out of the gas stream by cooling it below its dew point against the descending liquid.
Where it is used
Sample applications
- Waste incineration
- Flotation cells
- Calcining
- Odor control
- Reagent preparation
Nederman MikroPul packed bed scrubbers have also been successfully utilized for combustion and incineration duties. If your process is not listed, our engineers will assess it against the packed tower platform and the wider Nederman MikroPul wet scrubber range.
Common things to know
Frequently Asked Questions
Answers to common questions about the FS flat bag filter
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Last updated: September 2026
