Title:
UPGRADING METHOD FOR LOW-GRADE COAL, AND PROCESS FOR PRODUCTION OF COKE
Document Type and Number:
WIPO Patent Application WO/2010/090230
Kind Code:
A1
Abstract:
An upgrading method for converting a low-grade coal having a low rank of coalification into an equivalent of caking coal, characterized by comprising at least a modification step of heating a powdery low-grade coal having a low rank of coalification to a temperature of 350 to 450°C in the presence of a petroleum- or coal-based modifier to modify the low-grade coal, said low-grade coal being a coal having a reactive maceral content exceeding 50% as determined by coal maceral analysis. Thus provided is an upgrading method for converting a non-caking or slightly caking coal, which is classified as low-grade coal, into an equivalent of caking coal which can be used as a material in producing coke for iron-making or the like.
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Inventors:
MEGURO TAKESHI (JP)
MATSUBARA KENJI (JP)
SHIOBARA KATSUAKI (JP)
MOROTOMI HIDETOSHI (JP)
YOKOYAMA TAKASHI (JP)
NISHIKAWA YUDAI (JP)
TAKAHASHI EIJI (JP)
MATSUBARA KENJI (JP)
SHIOBARA KATSUAKI (JP)
MOROTOMI HIDETOSHI (JP)
YOKOYAMA TAKASHI (JP)
NISHIKAWA YUDAI (JP)
TAKAHASHI EIJI (JP)
Application Number:
PCT/JP2010/051531
Publication Date:
August 12, 2010
Filing Date:
February 03, 2010
Export Citation:
Assignee:
MEGURO TAKESHI (JP)
NIPPON OIL CORP (JP)
MATSUBARA KENJI (JP)
SHIOBARA KATSUAKI (JP)
MOROTOMI HIDETOSHI (JP)
YOKOYAMA TAKASHI (JP)
NISHIKAWA YUDAI (JP)
TAKAHASHI EIJI (JP)
NIPPON OIL CORP (JP)
MATSUBARA KENJI (JP)
SHIOBARA KATSUAKI (JP)
MOROTOMI HIDETOSHI (JP)
YOKOYAMA TAKASHI (JP)
NISHIKAWA YUDAI (JP)
TAKAHASHI EIJI (JP)
International Classes:
C10B57/08; C10B53/08
Foreign References:
| JPS5399202A | 1978-08-30 | |||
| JPS56139589A | 1981-10-31 | |||
| JPS53145804A | 1978-12-19 | |||
| JPS5598283A | 1980-07-26 | |||
| JPS56118486A | 1981-09-17 | |||
| JPS59179586A | 1984-10-12 |
Attorney, Agent or Firm:
KONDO Rieko (JP)
Kondo Toshihide child (JP)
Kondo Toshihide child (JP)
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