Patent ID: 8801839

Claim:
Device for drying gas, comprising: a dryer vessel having a rotatably mounted rotor therein which contains a drying agent and a driving device arranged to rotate said rotor, said drying agent, upon rotation of the rotor, being successively moved through a drying zone, a regeneration zone and a cooling zone of the vessel; said vessel being divided, at a first axial end of the rotor, into at least three compartments for guiding at least three gas flows; said gas flows comprising a main flow, a regeneration flow, and a cooling flow; a first of said compartments comprising a main outlet for said main flow, a second of said compartments comprising an inlet for the cooling flow, and a third of said compartments comprising an inlet for the regeneration flow; said vessel further comprising at least two additional compartments at a second axial end of the rotor; a first of said additional compartments comprising an inlet for the main flow and a second of said additional compartments comprising a common outlet for the cooling flow and the regeneration flow; said second compartment at the first end of the rotor comprising an additional outlet for the main flow and including two sub-compartments; a first of said sub-compartments comprising said inlet for the cooling flow and a second of said sub-compartments comprising said additional outlet for the main flow; said two sub-compartments being connected to and in communication with each other.