Activated alumina is a highly porous media that has a very high affinity for absorbing water vapour. Used for compressed air and gas drying/dehydration. Activated Alumina is typically regenerated by pressure swing in a twin tower dryer or with an external heat source.
i.e. Blower Purge or HOC heat regenerated drying systems. Widely used in general industry, petrochemical, breweries etc
Grades for the removal of fluorides from water are also available.