The apparatus consists of two jacketed vessels. The smaller vessel is filled with ceramic Berl saddles. Thermostated heating oil serves as heating medium. The vessels are connected and mounted in a framework which allows them to be rotated 180 degrees in a vertical plane, so that the vessels change place. The loaded solvent is thereby forced to flow from one vessel to the other. The tilting frequency as well as the length of the standstill periods is governed by an electronically controlled pneumatic piston cylinder.

The apparatus is usually operated in the temperature range 80-120 °C and a pressure up to 10 bar.

• cyclic capacity
• heat of absorption
• absorber heights etc

The high pressure equilibrium apparatus