Title:
液化物質を用いた固体含有水分の除去方法
Document Type and Number:
Japanese Patent JP4291772
Kind Code:
B2
Abstract:
A method and a system for removing water from high water content solid such as high water content coal, which enables dewatering with small energy consumption. A liquefied material which is a gas at 25 DEG C under 1 atm. (hereinafter referred to as material D) is contacted with a solid containing water to allow the liquefied material D to dissolve the water contained in the solid, and to produce a liquefied material D having a high water content and simultaneously remove the water from the solid, and by vaporizing the material D in the liquefied material having a high water content, to thereby separate the water from the resulting gaseous material D, recovering the separated gaseous material D, and liquefying the recovered gaseous material by pressurizing, cooling or a combination thereof, to reuse the resulting liquefied material for removing water from a solid containing water.
Inventors:
Hideki Kanda
Yuzo Shirai
Yuzo Shirai
Application Number:
JP2004508926A
Publication Date:
July 08, 2009
Filing Date:
June 03, 2003
Export Citation:
Assignee:
CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY
International Classes:
C10L5/00; B01D11/02; B01D12/00; C02F1/20; C10F5/00; F26B5/00
Domestic Patent References:
| JP55145506A | ||||
| JP8173704A | ||||
| JP61046202A | ||||
| JP56067394A | ||||
| JP2002143789A |
Attorney, Agent or Firm:
Hiroaki Sakai