COKE CAKING ADDITIVE PRODUCTION METHOD

WIPO Patent Application WO/2014/111986

A1

Provided is a coke caking additive production method that can simplify the facilities for securing sufficient agitation performance for a fine powder coal slurry in pyrolysis, obtain a reduction in power, and enable smooth operation by inhibiting the occurrence of coking. The present invention comprises the following steps: a drying and slurrying step (1, 2, 3) for pulverizing a low grade coal into a fine powdered coal, slurrying the same by mixing with a hydrogen solvent and then drying; a preheating step (4) for preheating the slurry obtained in the drying and slurrying step; a pyrolysis and hydrogenation step (5) for obtaining a product by pyrolyzing the preheated slurry; and a solid-liquid-gas separation step (6, 7, 8) for separating the product obtained in the pyrolysis and hydrogenation step into gas, oil components, and a coke caking additive. In the drying and slurrying step, the water content of the fine powdered coal is adjusted to be 5-25 wt%, and in the preheating step, the water content of the fine powdered coal is caused to evaporate.

SUGIYAMA HIDEKI (JP)
MURONAKA YOSHIHIRO (JP)
SHIMURA MITSUNORI (JP)
HATTORI KEISUKE (JP)
UEDA SHIGERU (JP)
ARAMAKI TOSHIHIRO (JP)
ONOZAKI MASAKI (JP)

PCT/JP2013/006382

July 24, 2014

October 29, 2013

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CHIYODA CORP (JP)

C10B57/06

WO2011004495A1

2011-01-13

JPS55127489A	1980-10-02
JPS52104503A	1977-09-02

SHIMIZU, CHIHARU (JP)
Spring water Chiharu (JP)

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