Title:
METHOD FOR REFINING LOW-RANK COAL, METHOD FOR PRODUCING COKE, AND METHOD FOR PRODUCING PIG IRON
Document Type and Number:
WIPO Patent Application WO/2018/008339
Kind Code:
A1
Abstract:
The key feature of this method for refining low-rank coal is the feature of subjecting low-rank coal to a chemical reduction treatment. The key feature of this method for producing coke is the feature of producing refined coal using the method for refining low-rank coal and then carbonizing the refined coal. The key feature of this method for producing pig iron is the feature of producing coke using the method for producing coke, introducing the obtained coke into a blast furnace together with limestone and iron ore, and chemically reducing the iron ore. According to the present invention, it is possible to provide a method for refining low-rank coal, a method for producing coke and a method for producing pig iron which are useful for producing high strength coke at low cost.
More Like This:
| JPS54127402 | DESULFURIZATION OF COAL AND ORES |
| JPH08100185 | DESULFURIZATION AND DENITRIFICATION OF COAL |
Inventors:
YOSHIDA TAKUYA
SAKAI KOJI
OKUYAMA NORIYUKI
ASHIDA RYUICHI
SAKAI KOJI
OKUYAMA NORIYUKI
ASHIDA RYUICHI
Application Number:
PCT/JP2017/021838
Publication Date:
January 11, 2018
Filing Date:
June 13, 2017
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
UNIV KYOTO (JP)
UNIV KYOTO (JP)
International Classes:
C10L9/02; C10B57/08; C21B5/00
Foreign References:
| JPH07166180A | 1995-06-27 | |||
| JPS5857498A | 1983-04-05 |
Other References:
THE SOCIETY OF CHEMICAL ENGINEERS, JAPAN DAI 81 NENKAI KOEN YOSHISHU, B115: "Kattan eno Borane Tenka ni yoru Kannoki no Henka to Shizen Hakkasei eno Eikyo", THE SOCIETY OF CHEMICAL ENGINEERS, JAPAN, 28 February 2016 (2016-02-28)
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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