A process for removing acid gases from a fluid stream comprising the steps of: - supplying a pressurized fluid stream and a lean absorption medium comprising a liquid diluent and at least one amine to an absorber - passing the fluid stream, which is in contact with the lean absorption medium within a rotating absorption zone (102a,b) in the absorber, wherein the acid gases are removed from the fluid stream by the lean absorption medium when passing through the rotating absorption zone; - supplying rich absorption medium containing said acid gases into an inner portion of at least one annular rotating desorber unit within a desorber, causing the rich absorption medium to flow radially outwards through a first rotating desorption zone, wherein a first portion of the acid gases are removed from the rich absorption medium by means of a heated vapour to obtain a partially regenerated absorption medium, - passing the partially regenerated absorption medium into a second rotating desorption zone within the desorber; wherein the remaining portion of the acid gases are removed from the partially regenerated absorption medium by heating the absorption medium to evaporate said acid gases and a portion of the absorption medium containing amine and liquid diluent into a vapour; - supplying said heated vapour to an outer perimeter of the first rotating desorption zone, causing the vapour to flow radially inwards in order to create a radial cross-flow in the first rotating desorption zone; wherein the first portion of acid gases are desorbed from the rich absorption medium by the vapour during said radial cross-flow, - passing said vapour to a rotating condenser within the desorber, wherein the diluent is condensed and the acid gases are removed. - supplying a pressurized fluid stream and a lean absorption medium comprising a liquid diluent and at least one amine to an absorber - passing the fluid stream, which is in contact with the lean absorption medium within a rotating absorption zone (102a,b) in the absorber, wherein the acid gases are removed from the fluid stream by the lean absorption medium when passing through the rotating absorption zone; - supplying rich absorption medium containing said acid gases into an inner portion of at least one annular rotating desorber unit within a desorber, causing the rich absorption medium to flow radially outwards through a first rotating desorption zone, wherein a first portion of the acid gases are removed from the rich absorption medium by means of a heated vapour to obtain a partially regenerated absorption medium, - passing the partially regenerated absorption medium into a second rotating desorption zone within the desorber; wherein the remaining portion of the acid gases are removed from the partially regenerated absorption medium by heating the absorption medium to evaporate said acid gases and a portion of the absorption medium containing amine and liquid diluent into a vapour; - supplying said heated vapour to an outer perimeter of the first rotating desorption zone, causing the vapour to flow radially inwards in order to create a radial cross-flow in the first rotating desorption zone; - passing said vapour to a rotating condenser within the desorber, wherein the diluent is condensed and the acid gases are removed.