Centrifugal Fans for Industrial Scrubber Applications
Industrial scrubbers remove or neutralize toxic gases like carbon dioxide (CO2) and corrosive acids like ammonia (NH3), hydrochloric acid (HCI), sulfuric acid (H2SO4), nitric acid (HNO3), sodium chloride (NaCl) from a gas stream for air pollution control in industrial exhaust emissions (flue gas) to meet the standards and requirements of the Environmental Protection Agency’s Clean Air Act.
Wet scrubbers apply water and various reagents in mist form to remove the hazardous gases or particulates from the airstream. Dry scrubbers, also classified as dry sorbent injectors (DSIs) or spray dryer absorbers (SDAs), remove acidic gases from the airstreams created by combustion processes using a variety of alkaline materials and slurries.
The function of the centrifugal industrial fan in the scrubber system is to transport the contaminated air from the source and through the scrubber to clean and exhaust it. Because the air is acidic and corrosive, the fan needs to be constructed of corrosive resistant material, most commonly 304SS or 316SS, with proper sealing. It must also be extremely reliable and efficient because operations will stop without it.
The scrubber application gases, pressure, and airflow will determine your process fan specifications. Scroll or hyperlink down to find Application Featured Products, Case Studies, and further application details as follows: