Title:
Sub-critical water treatment method and equipment
Document Type and Number:
Japanese Patent JP6327993
Kind Code:
B2
Abstract:
Provided is a subcritical water treatment method in which organic waste and sludge are decomposed in a large-sized pressure vessel using a low amount of energy consumption. In this subcritical water treatment method: high-temperature, high-pressure steam is supplied into a pressure vessel; an object to be treated in the pressure vessel, said object comprising organic waste or sludge, is stirred while being heated and pressurized; a sudden increase in the temperature and/or pressure inside the pressure vessel is detected with the temperature inside the pressure vessel at 150 °C or above; after this detection, the amount of supplied steam is adjusted such that the temperature inside the pressure vessel is maintained for 5-10 minutes at or above the temperature at the time when the sudden increase started; and subsequently, the supply of steam is stopped.
Inventors:
Toshikatsu Suzuki
Application Number:
JP2014151244A
Publication Date:
May 23, 2018
Filing Date:
July 24, 2014
Export Citation:
Assignee:
PCS Co., Ltd.
International Classes:
B01J3/00; B01J3/02; B01J3/04; B09B3/00; C02F11/08; G21F9/30
Domestic Patent References:
| JP2011194301A | ||||
| JP2009119378A | ||||
| JP2013144290A | ||||
| JP2006502218A | ||||
| JP10156175A | ||||
| JP2003502395A | ||||
| JP2008093831A | ||||
| JP2011056330A | ||||
| JP2011230059A | ||||
| JP2009051968A | ||||
| JP2008179713A | ||||
| JP2001524871A |
Attorney, Agent or Firm:
Keisuke Matsuyama
Satoshi Takaya
Tsuyoshi Makino
Takashi Fujita
Shuzo Sudo
Satoshi Takaya
Tsuyoshi Makino
Takashi Fujita
Shuzo Sudo