HYDROTHERMAL TREATMENT APPARATUS, BIOMASS FUEL PRODUCTION PLANT, HYDROTHERMAL TREATMENT METHOD, AND BIOMASS FUEL PRODUCTION METHOD

摘要

To reduce an energy required to separate and remove a water content from a treated material after hydrothermal treatment by reducing the water content of the treated material after the hydrothermal treatment.SOLUTION: A hydrothermal treatment device 3 is a hydrothermal treatment device 3 that performs a hydrothermal treatment by heating a high water content biomass, including: a processing container 21 for storing sludge; a sludge supply unit 22 that supplies the sludge into the processing container 21 so that space S is formed vertically above the processing container 21; a stirrer 23 that is provided inside the processing container 21 and stirs a stored material such that a counterflow in a vertical direction is generated; and a heat transfer tube 24 disposed horizontally in the processing container 21 and heating the sludge by heat of a steam flowing through inside.SELECTED DRAWING: Figure 2