Method and apparatus for drying biomass

There are a method and an apparatus for drying a moist biomass 2 will be described. Here, a drying medium 9 is used in a multi-zone drier 1 having a pre-drying zone 3, in which the wet biomass is fed to 2, and a Endtrocknungszone 4, from which the dried biomass is discharged. 2 The drying medium 9 is first supplied in the Endtrocknungszone 4 in cross-current to the biomass 2 and then flows through the biomass 2 in the pre-drying zone 3 in counterflow, wherein the biomass is loosened at least in the pre-drying zone 3. 2 The pre-drying zone 3 has an inlet for the biomass 2 and a Luftabfuhreinrichtung for discharging the drying medium. 9 The Endtrocknungszone 4 has an outlet for the biomass transfers 2 and a supply device for the drying medium. 9 Both the pre-drying 3 and the Endtrocknungszone 4 have a conveying device for conveying the biomass. 2 Furthermore, the device having at least a loosening unit 7 for loosening the biomass 2 is provided, at least in the predrying zone. 3