NOVELTY - The process involves passing a pressurized fluid stream with lean absorption medium comprising liquid diluent and amine within a rotating absorption zone of absorber packings (102a, 102b). Rich absorption medium is removed from an outer perimeter (111) of the packings and transferred into a rotating desorption zone within a desorber for removing a portion of acid gases from the rich medium to obtain partially regenerated absorption medium. The regenerated medium is transferred into another rotating desorption zone within the desorber for removing the remaining portion of the gases.    USE - Process for removing acid gas e.g. carbon dioxide and/or hydrogen sulfide, from a fluid stream e.g. natural gas such as hydrocarbons, in a natural gas production plant, a gas power plant or a coal power plant installed at an offshore installation.    ADVANTAGE - The process allows recovering kinetic energy from the sweet natural gas by radial discharge vanes arranged in the open section of the absorber, thus reducing power consumption for driving the rotating absorber packings. The process allows recovering the liquid diluents and the desorbed acid gases from the outer portion of the rotating condenser for further processing while returning the condensed amine-free diluents to the absorber to be used as washing liquid in the absorption process. The desorber is configured with two mirrored desorber/condenser units on a side of a plane at right angles to a common axis of rotation, thus eliminating axial load on the desorber caused by the high pressure steam supplied for heating process, and hence reducing the mass and energy flow to the condenser units by 50 percent, and making the inflow and outflow of liquids/gases easier to handle.    DETAILED DESCRIPTION - The portion of acid gases is removed from the partially regenerated absorption medium by heating the absorption medium to evaporate the acid gases and a portion of the absorption medium containing amine and liquid diluents into a vapor, and passing the vapor through the former desorption zone, and to a rotating condenser within the desorber sequentially so that the diluents are condensed and the acid gases are removed.    DESCRIPTION OF DRAWING(S) - The drawing shows a partial cross-sectional view of an absorber.    Absorber packings (102a, 102b)    Absorbent inlet (103)    Natural gas outlets (110)    Outer perimeter of packings (111)    Driven rotor shaft (119)