CO2 Scrubber


  • Air flow rate from 50 to 30000 CFM
  • Material of construction: PP, PP+FRP, MS, SS 304, SS 316
  • Scrubbing efficiency up to 99 %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


CO2 scrubber

  • carbon dioxide scrubberis a piece of equipment that absorbs carbon dioxide (CO2). It is used to treat exhaust gases from industrial plants or from exhaled air in life support systems such as rebreathers or in spacecraft, submersible craft or airtight chambers.
  • Carbon dioxide scrubbers are also used in controlled atmosphere They have also been researched for carbon capture and storage as a means of combating global warming.
  • A CO2 Scrubber removes carbon dioxide from the air. Although large scale CO2 scrubbers remain largely in the theoretical and planning stages of development, many environmentalists and scientists question the usefulness of this technology.

How a CO2 Scrubber Works

While there are many prototypes of CO2 scrubbers, most use similar technology to remove carbon dioxide from the air. Although the technology to create the CO2 scrubber is advanced, the function of the machine is easy to follow.

  • Air polluted with carbon dioxide is pumped into the CO2 scrubber.
  • The air comes into contact with an ion exchange resin, which attracts the carbon dioxide molecules.
  • The cleaned air is then pumped out of the CO2 scrubber.


  • Despite several different designs currently being in development, they all are based on a common chemical reaction. Air is sucked into the machinery where it is bought into contact with a sorbent material which chemically binds with the Carbon Dioxide.
  • A sorbent material is one that simply absorbs a gas or liquid (e.g. sponge is sorbent as it absorbs many times its own weight in water).
  • The greater the surface area of the sorbent, the more efficiently it will absorb the gas or liquid, therefore different mechanisms have been suggested to maximise exposure of the sorbent to the carbon dioxide, thereby maximising it’s scrubbing ability.
  • In other sections of this site we have covered the concept of carbon capture and storage, which is the process of removing carbon dioxide from entering the atmosphere and storing it. Most of the technologies we have looked at focus on removing the gas where it is developed in high quantities, for example in the exhaust gases produced by coal power stations.
  • Housing this technology in towers that are several metres high, the mist would react with the gas and be collected in a chamber where they would once again be separated. The pure CO2could be compressed into liquid form and removed, while the sorbent would be recycled and used again to collect more of the gas.
  • Once the initial reaction has taken place, liquid chemicals are washed over the sheets that create a stronger bond with the COthan the sorbent. The liquid can then be collected (as it now is bound to the CO2), and this can be heated which will allow the CO2to be stripped from the liquid, and so once again the pure CO2 could be compressed into liquid form and removed, while the liquid can be recycled and used again to wash future CO2 from the sheets.
  • CO2is absorbed by an alkaline NaOH solution to produce dissolved sodium carbonate. The absorption reaction is a gas liquid reaction, strongly exothermic, here:

2NaOH(aq) + CO2(g) → Na2CO3(aq) + H2O(l)

Na2CO3(aq) + Ca(OH)2(s) → 2NaOH(aq) + CaCO3(s)

  • We can design and manufacture a custom Wet Sulfuric Acid Scrubber to fit your precise application and will provide you with outstanding performance and low maintenance requirements. Contact us with your process information so we can begin discussing the type of new equipment that best fits your situation.


  • Steel industries exhaust scrubbing
  • Food manufacturing industries exhaust scrubber
  • Coal industries exhaust scrubbing
  • Chemical factory wet scrubbing
  • Reactor vent scrubbing
  • Process vent scrubbing
  • Storage room exhaust scrubbing
  • Flue gas exhaust scrubbing