The Adiabatic absorber is the simplest form of HCl absorber, which can be operated continuously. Under normal operating procedure, Adiabatic Hydrogen Chloride Absorber produces 30 % HCl. Adiabatic Absorber is a vertically mounted Packed Column. The standard configuration of the adiabatic absorber consists of a suitable Glass Packed Column with internals, coil type condenser & cooler with the necessary drain outlet for the acid. The Hydrogen Chloride Gas enters at the bottom of the column & Water flows from the top of column & flows down through the column.