In the Selexol process (now licensed by UOP LLC), the Selexol solvent dissolves (absorbs) the acid gases from the feed gas at relatively high pressure, usually 300 to 2000 psia (2.07 to 13.8 MPa). The rich solvent containing the acid gases is then let down in pressure and/or steam stripped to release and recover the acid gases.
In the Selexol process (now licensed by UOP LLC), the use of a solvent that absorbs (takes in) acid gases from the feed gas at high pressures, usually between 300 to 2000 psia (2.07 to 13.8 MPa), is followed by the reduction of pressure and/or steam stripping to release and recover the absorbed acid gases.