HYDROTHERMAL TREATMENT DEVICE AND METHOD OF CARRYING OUT HYDROTHERMAL TREATMENT OF OBJECT TO BE TREATED BY WATER COMPONENT OF STEAM AND HEAT OF STEAM

摘要

PPROBLEM TO BE SOLVED: To provide a method for carrying out a hydrothermal treatment which attempts to simply maintain the treatment conditions of a hydrothermal treatment and to enhance the treatment efficiency in conducting the hydrothermal treatment by a water component of steam and heat of steam, and to provide a hydrothermal treatment device therefor. PSOLUTION: In introducing steam with high temperature and high pressure of about 200C/2MPa into a treatment kettle 110 and carrying out the hydrothermal treatment of the object to be treated by the water component of steam with high temperature and high pressure and heat of the steam in the treatment kettle 110, steam to be sent under pressure by a boiler 120 is heated by a steam overheating heater 130. Prior to the introduction of steam, the inside of the treatment kettle 110 is set to a high-pressurized environment in advance by introducing hyperbaric air into the treatment kettle 110 and the object to be treated is warmed in advance by spraying the object to be treated before the hydrothermal treatment is conducted with the residual steam upon the previous hydrothermal treatment. Thus, the treatment environment is maintained at high temperature and high pressure in the treatment kettle 110. PCOPYRIGHT: (C)2008,JPO&INPIT