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Title:
SUBCRITICAL WATER TREATMENT METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/013535
Kind Code:
A1
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:
SUZUKI, Toshikatsu (1-25, Kita 15-jyo Higashi 1-chome, Higashi-ku, Sapporo-sh, Hokkaido 15, 〒0650015, JP)
Application Number:
JP2015/070643
Publication Date:
January 28, 2016
Filing Date:
July 21, 2015
Export Citation:
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Assignee:
PCS CO., LTD. (1-25, Kita 15-jyo Higashi 1-chome Higashi-ku, Sapporo-sh, Hokkaido 15, 〒0650015, JP)
International Classes:
B01J3/00; B01J3/02; B01J3/04; B09B3/00; C02F11/08; G21F9/30
Foreign References:
JP2011194301A2011-10-06
JP2008093831A2008-04-24
JP2013144290A2013-07-25
JP2009119378A2009-06-04
JP2011230059A2011-11-17
JP2011056330A2011-03-24
Attorney, Agent or Firm:
MATSUYAMA, Keisuke et al. (Dai5-Mizuho Bldg, 21-7 Sendagaya 5-chome, Shibuya-k, Tokyo 51, 〒1510051, JP)
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