ENERGY GENERATION PLANT AS WELL AS METHOD FOR GENERATING ENERGY FROM WET BIOMASS

摘要

An energy generation plant 1 comprises a drying system 3 for drying wet biomass 4, as well as a thermal conversion system 5 for generating energy from dried biomass 6, and a heat exchange system 7 which heats a heat transfer medium 9 by the heat produced during the thermal conversion and feeds this heat transfer medium to the drying system where the heat in the heat transfer medium is utilized for the drying process. Molten salt or molten metal is used here as a heat transfer medium. The drying system 3 is arranged as an overheated- steam drier 23 wherein steam needed for drying the wet biomass is heated by the heat transfer medium 9. An energy recovery system 21 provides the recovery of energy from the water vapour that has arisen from the drying process. The thermal conversion system is formed by a combustion boiler 13 having a boiler wall 15 and a combustion space 17 found inside. The bottom of the combustion boiler is formed by a fluidized bed combustor 19.