Air Pollution Control Equipment Selection Guide, 3rd Edition

2

Absorption Devices

2.1 Device Type

Adsorption devices consist of adsorptive media, either static or mobile, in a containing vessel through which the gas and its contaminants are passed. The contaminants are adsorbed onto and into pores in the adsorbing media.

2.2 Typical Applications and Uses

Adsorbers are most commonly used for solvent recovery; control of hydrocarbon emissions from storage tanks, transfer facilities, printing operations; and similar processes where volatile hydrocarbons are present. Activated carbon types are also used to control sulfurous odor, such as that from sewage treatment plants. Special impregnated carbons are used to chemically react with the contaminant once it is adsorbed, thereby extending the carbon ...