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
accommodates high gas temperatures
tolerates high dust loads
high-efficiency mist elimination
NaOH or Na₂ CO₃ reagents

Applications

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

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