Absorption
The efficiency of this process:
Inorganic gases: control device vendors estimate that removal efficiencies range from 95 to 99% (EPA, 1993).
VOC: Removal efficiencies for gas absorbers vary for each pollutant-solvent system and with the type of absorber used.
Most absorbers have removal efficiencies in excess of 90%, and packed-tower absorbers may achieve efficiencies greater than 99% for some pollutant-solvent systems.
Typical collection efficiency range is from 70 – 99% . (EPA, 1996a; EPA, 1991).