COMPRESSOR ARRANGEMENT WITH REDUCED PROCESS GAS CONSUMPTION

The invention relates to a compressor arrangement, comprising a compressor (2) for compressing a process gas (13) from an intake region (21) to a delivery region (22), a mechanical face seal arrangement (3) for sealing against a shaft (5) of the compressor (2) with respect to an atmosphere (6), the mechanical face seal arrangement having a mechanical face seal (4) with a stationary seal ring (41) that has a first seal face (41a) and having a rotating seal ring (42) that has a second seal face (42a), which define a sealing gap (40) between the seal faces (41a, 42a), and a barrier fluid supply (7) with barrier fluid line (70), which leads from the pressure region (22) of the compressor (2) to the mechanical face seal (4) and through which process gas is branched off from the delivery region as barrier fluid, the stationary seal ring (41) having a through-opening (8), which runs from a rear side (41b) of the stationary seal ring (41) to an opening on the first seal face (41a) of the stationary seal ring in order to feed process gas from the barrier fluid line (70), through the stationary seal ring (41), to the sealing gap (40).