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, 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 HCI 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
Applications
Incineration
Cl, Br. F gases
SO₂ removal
Chemical
Tray Scrubbers
AirPol Advantages
Good particulate removal efficiency
High acid gas absorption efficiency
Excellent for gas cooling and heat recovery
Accepts high gas temperatures
Medium pressure drop
Greater resistance to solid buildup
High-efficiency mist elimination
Applications
Particulate removal
Acid gas absorption
Gas cooling
Heat recovery
