METHOD FOR REMOVING WATER CONTAINED IN SOLID USING LIQUID MATERIAL

摘要

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.