Alkali fume scrubber

Alkali fume scrubber

 

  • In most cases, chemicals stored in polyethylene tanks require venting. In some instances, the harmful fumes emitted from the chemicals cannot be directly released to the atmosphere.
  • In order to reduce the harmful fumes before they evacuate the system and to control air pollution, fume scrubbers are installed. 

Working principle

  • Alkali fume scrubbers remove or neutralize the harmful substances emitted from combustion or the storage of chemicals.
  • It works by contacting the target compounds with a scrubbing solution. Often, the solution is simply water, but can be a reagent to address specific chemicals.
  • Some of the chemicals that can be vented from tanks are hydrochloric acid, and acetic acid.  When storing these types of chemicals, it’s important to construct a system that address venting needs by installing a compatible scrubber.
  • Drizgas Tech offers a cost-effective alkali fume scrubber system and we are the one of the leading manufacturer of Alkali fume scrubber in India. The system introduces water or a specific scrubbing solution through a submerged plenum. The fumes percolate up and through the scrubbing solution, then vent out of the top of the scrubber system. 
  • If your applications need alkali fume scrubber or you are not sure, please contact us for more detailed information.

Features

  • Can handle air flow rate from 100 to 30,000 CFM
  • Removal method is Absorption / Chemisorption
  • Material of Construction: PP, FRP, PP+FRP, MS+FRP, SS 304, SS 316
  • High efficiency Tellerette® Tower Packing removes soluble/reactive gases, solid particulate and liquid droplets down to 7 microns
  • Lower shell serves as integral sump for recycle of liquid
  • Spray nozzles accessible from top of unit
  • Entrainment separators prevent liquid carryover
  • Special multi-bed packing designs accommodate different scrubbing solutions for removal of multiple contaminants
  • Efficiency up to 99 %

Additional accessories

  • Continuous pH monitoring system for scrubbing liquid
  • Dosing system for adjusting pH
  • PLC operated control panel
  • SCADA system

Applications

  • Ammonia fume scrubbing
  • NaOH fume Scrubbing
  • Solvent vapor scrubbing
  • Inorganic chemical scrubbing
  • Boiler Exhaust flue gas scrubbing

Frequently Asked Questions

An alkali fume scrubber is a device designed to remove alkaline gases or vapors (such as ammonia or caustic mist) from industrial exhaust streams before releasing them into the atmosphere.

Acid fume scrubbers typically work by passing the exhaust gases through a medium (liquid or solid) that neutralizes or captures the acidic components. The two main types are:

  • Wet scrubbers: Use water or alkaline solutions to absorb and neutralize acid gases.
  • Dry scrubbers: Use solid sorbents to capture and neutralize acidic gases.

These scrubbers are effective at removing gases such as:

  • Ammonia (NH₃)
  • Sodium hydroxide (NaOH) mist
  • Potassium hydroxide (KOH) mist
  • Other alkaline vapors
  • Chemical manufacturing
  • Metal plating and etching
  • Fertilizer production
  • Petroleum refining
  • Power plants

  • Wet Scrubbers: Use acidic liquids to neutralize alkaline gases.
  • Packed Bed Scrubbers: Employ a bed of packing material to increase gas-liquid contact.

  • Ensures compliance with air quality regulations.
  • Protects workers from exposure to hazardous alkaline fumes.
  • Reduces environmental impact.
  • Customizable designs for specific applications.

  • Can require regular maintenance to prevent scaling or clogging.
  • Potential generation of acidic wastewater that needs treatment.
  • High initial installation costs for advanced systems.

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