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Patent Searching and Data


Title:
SOLVENT SEPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2013/114920
Kind Code:
A1
Abstract:
Provided is a method for separating solvent-containing water, which is produced in the process for producing an ashless coal, into a solvent and water readily without using any adsorbent or the like (a solvent separation method). The solvent separation method comprises: a solvent-containing water supply step of supplying the solvent-containing water into a pressure vessel for solvent separation purposes (11); and a temperature retention step of retaining the temperature of the solvent-containing water that has been supplied into the pressure vessel for solvent separation purposes (11) at a predetermined temperature (e.g., 100 to 180˚C inclusive). In the pressure vessel for solvent separation purposes (11), water in the liquid form moves downward and the solvent moves upward due to the difference between the density of water and the density of the solvent at the predetermined temperature. In this manner, the solvent-containing water can be separated into the solvent and water.

Inventors:
SAKAI KOJI (JP)
OKUYAMA NORIYUKI (JP)
KINOSHITA SHIGERU (JP)
YOSHIDA TAKUYA (JP)
Application Number:
PCT/JP2013/050180
Publication Date:
August 08, 2013
Filing Date:
January 09, 2013
Export Citation:
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Assignee:
KOBE STEEL LTD (JP)
International Classes:
C10L5/00
Foreign References:
JP2010235959A2010-10-21
JP2010083907A2010-04-15
JP4365442B12009-11-18
Attorney, Agent or Firm:
KAJI, Yoshiyuki et al. (JP)
梶 Yoshiyuki (JP)
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Claims: