Title:
METHOD FOR PRODUCING ASHLESS COAL
Document Type and Number:
WIPO Patent Application WO/2015/098505
Kind Code:
A1
Abstract:
Provided is a method for producing ashless coal, said method comprising a slurry preparation step in which a slurry is prepared by mixing coal and a solvent, the coal that is included in the slurry is dewatered, and the temperature of the slurry is increased. The slurry preparation step comprises a preparation/dewatering step and a preparation/temperature increase step. In the preparation/dewatering step, preparation of the slurry and dewatering of the coal are performed by mixing coal and a liquid solvent that is circulated during a circulation step. In the preparation/temperature increase step, the slurry is prepared and the temperature of the slurry is increased by mixing the slurry with solvent vapor that is circulated during the circulation step.
Inventors:
KINOSHITA SHIGERU
OKUYAMA NORIYUKI
YOSHIDA TAKUYA
SAKAI KOJI
OKUYAMA NORIYUKI
YOSHIDA TAKUYA
SAKAI KOJI
Application Number:
PCT/JP2014/082579
Publication Date:
July 02, 2015
Filing Date:
December 09, 2014
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
C10L5/00
Foreign References:
| JP2013249360A | 2013-12-12 | |||
| JP2012172076A | 2012-09-10 | |||
| JP2010083907A | 2010-04-15 | |||
| JP2005120185A | 2005-05-12 |
Attorney, Agent or Firm:
HAMADA Yuriko et al. (JP)
Yuriko Hamada (JP)
Yuriko Hamada (JP)
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