Packed Towers

This type of scrubber is designed for the absorption of gaseous contaminants and has been in use for over a hundred years. The dirty gas enters at the bottom of the tower and passes through the packing, counter current to the liquor, which is introduced at the top of the scrubber via a distributor. The packing is a randomly dumped media which has a high contact surface area for the efficient absorption of gases into liquids with a low gas pressure drop.