Acid Gas Absorbers

Acid Gas Absorbers

The diversity of industrial and chemical process operations requires customized design of air pollution control systems. Wet scrubbers such as acid gas absorbers using various stages of spray towers, quenchers and chemical absorbers can be combined to optimize scrubber water reuse and recirculation opportunities.

AirPol’s open spray tower is a high efficiency and maintenance-free acid gas absorption system proven by successful installations.


Absorption Spray Towers

AirPol’s acid gas absorbers or packed absorber have demonstrated long-term compliance with Federal Maximum Achievable Control Technologies (MACT) and Best Available Control Technologies (BACT) Standards.

AirPol Advantages

  • very high and adjustable absorption efficiency
  • low pressure drop
  • special design to minimize scaling or buildup or reacted salts
  • specially designed spray distributors and nozzles to minimize nozzle plugging

     Applications
    • boiler flue gas desulfurization (FGD) and HCl removal
    • HF/SO2 absorption in the aluminum industry
    • lime sludge kilns for SO2 control

      • accommodates high gas temperatures
      • tolerates high dust loads
      • high efficiency mist elimination
      • NaOH or Na2 CO3 reagents
        AirPol Spray Tower Acid Gas Absorber for a 60 MW coal fired power boiler

        Packed Towers

        AirPol’s packed tower effectively absorbs odors and gaseous compounds through the countercurrent flow of gases and scrubbing liquid over a packed media bed. The action provides intimate contact needed for efficient, thorough absorption and chemical reaction required for a wide range of industrial processing operations.

        AirPol Advantages

        • high removal efficiency to meet the most stringent emission requirements
        • lower pressure drop for economical energy use
        • wide selection of packing materials to meet specific requirements
          • no moving parts or high velocity areas assure maintenance and trouble-free operation
          • gas channeling is prevented by proper spacing of internal components which results in increased efficiency
            AirPol Packed Towers at a Pharmaceutical Plant

            Applications

            • incineration
            • Cl, Br. F gases
            • SO 2  removal
            • chemical

              • plating operation
              • HCl removal
              • heat recovery

                Tray Scrubbers

                AirPol Advantages

                • good particulate removal efficiency
                • high acid gas absorption efficiency
                • excellent for gas cooling and heat recovery

                  Applications

                  • particulate removal
                  • acid gas absorption
                  • gas cooling
                  • heat recovery

                    • accept high gas temperatures
                    • medium pressure drop
                    • greater resistance to solid buildups
                    • high efficiency mist elimination
                      Title: Tray Tower
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