METHOD FOR PRODUCING MODIFIED COAL AND DEVICE FOR PRODUCING MODIFIED COAL

WIPO Patent Application WO/2016/013293

A1

A method for producing modified coal, said method comprising: a first drying step (S11) for heating air taken from the outside, fluidizing high-water content coal using the heated air to give a fluidized coal bed, and evaporating moisture from the high-water content coal in the fluidized coal bed to give primarily dried coal; a second drying step (S12) for indirectly heating the primarily dried coal, further evaporating moisture from the primarily dried coal to give dried cool and, at the same time, recovering first steam evaporated from the primarily dried coal; a dry distillation step (S20) for dry distilling the dried coal to give modified coal and, at the same time, recovering, as exhaust gas, combustion exhaust gas that remains after supplying dry distillation heat required for dry distillation of the dried coal to thereby generate second steam; and a cooling step (S30) for cooling the modified coal. In the first drying step, the air is indirectly heated by the first steam. In the second drying step, the primarily dried coal is indirectly heated using the second steam.

KOSUGE KATSUSHI (JP)
KOBAYASHI ATSUSHI (JP)
SHIROMIZU WATARU (JP)

PCT/JP2015/065461

January 28, 2016

May 28, 2015

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NIPPON STEEL & SUMIKIN ENG CO (JP)
NS PLANT DESIGNING CORP (JP)

C10L9/08; F26B3/084; F26B21/00

WO2012147752A1

2012-11-01

JPS6262892A	1987-03-19
JPS5962696A	1984-04-10

SHIGA Masatake et al. (JP)
Masatake Shiga (JP)

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