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1. (WO2015115199) METHOD OF PRODUCING MODIFIED COAL, AND MODIFIED COAL

Pub. No.:    WO/2015/115199    International Application No.:    PCT/JP2015/050984
Publication Date: Fri Aug 07 01:59:59 CEST 2015 International Filing Date: Fri Jan 16 00:59:59 CET 2015
IPC: C10L 9/06
Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
株式会社神戸製鋼所
Inventors: FURUYA Atsushi
古谷 敦志
SHIGEHISA Takuo
重久 卓夫
TAKAHASHI Yoichi
高橋 洋一
HIGUCHI Toru
樋口 徹
YAMAMOTO Seiichi
山本 誠一
WATANABE Hiroki
渡邉 裕紀
SHIMIZU Takahiro
清水 孝浩
Title: METHOD OF PRODUCING MODIFIED COAL, AND MODIFIED COAL
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.