Title:
The manufacturing method of property modification coal, and property modification coal
Document Type and Number:
Japanese Patent JP6219185
Kind Code:
B2
Abstract:
This method of producing modified coal comprises a step for dehydrating low-grade coal, a step for adding water to the dehydrated coal, a step for agglomerating the water-added coal, and a step for slowly oxidizing the agglomerated coal. In the water addition step, the amount of water added is adjusted so that the water content in the water-added coal is 5 to 20 mass%, and in the oxidation step, the agglomerated coal is held at a temperature of 70 to 105°C in air. The water content of the oxidized coal after the oxidation step is preferably 1 to 13 mass%. The oxidation step may also be followed by a step for pulverizing the oxidized coal and a step for secondarily adding anti-dusting water to the pulverized coal.
Inventors:
Atsushi Furuya
Takuo Shigehisa
Yoichi Takahashi
Toru Higuchi
Seiichi Yamamoto
Yuki Watanabe
Takahiro Shimizu
Takuo Shigehisa
Yoichi Takahashi
Toru Higuchi
Seiichi Yamamoto
Yuki Watanabe
Takahiro Shimizu
Application Number:
JP2014016162A
Publication Date:
October 25, 2017
Filing Date:
January 30, 2014
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
C10L9/06
Domestic Patent References:
| JP2011037938A | ||||
| JP59161491A | ||||
| JP2298586A |
Foreign References:
| WO2010044376A1 |
Attorney, Agent or Firm:
Hajime Amano
Yoshinori Ikeda
Hiroshi Ogawa
Koji Ishida
Kazuki Kagami
Yoshiaki Negi
Takashi Shiotani
Kenichi Fujinaka
Yoshinori Ikeda
Hiroshi Ogawa
Koji Ishida
Kazuki Kagami
Yoshiaki Negi
Takashi Shiotani
Kenichi Fujinaka