METHOD FOR REMOVING WATER CONTAINED IN SOLID USING LIQUID MATERIAL

Title:

METHOD FOR REMOVING WATER CONTAINED IN SOLID USING LIQUID MATERIAL

Document Type and Number:

WIPO Patent Application WO/2003/101579

Kind Code:

A1

Abstract:

A method for removing the water contained in a solid, which comprises contacting a solid containing water with a liquefied material which is a gas at 25°C under 1 atm. (hereinafter referred to as the material D) to allow the liquefied material D to dissolve the water contained in the solid, to produce a liquefied material D having a high water content and simultaneously remove the water from the solid, vaporizing the material D in the liquefied material D having a high water content, to thereby separate water from a gaseous material D, recovering the gaseous material D, and liquefying the gaseous material D by pressuring, cooling, or a combination thereof, for reuse; and a system for practicing the method. The method can be suitably employed for removing water from a solid having a high water content such as a high water content coal with a reduced energy consumption.

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Inventors:

KANDA HIDEKI (JP)
SHIRAI HIROMI (JP)

Application Number:

PCT/JP2003/006989

Publication Date:

December 11, 2003

Filing Date:

June 03, 2003

Export Citation:

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Assignee:

CENTRAL RES INST ELECT (JP)
KANDA HIDEKI (JP)
SHIRAI HIROMI (JP)

International Classes:

B01D11/02; B01D12/00; C10F5/00; F26B5/00; (IPC1-7): B01D12/00; F26B5/00

Foreign References:

JPH08173704A	1996-07-09
JP2002143789A	2002-05-21
US4811494A	1989-03-14
US5346630A	1994-09-13
US4733478A	1988-03-29

Other References: