Title:
IMPROVING METHOD FOR COAL
Document Type and Number:
Japanese Patent JP2575084
Kind Code:
B2
Abstract:
PURPOSE: To prevent the solidification of high-melting oily components on cooling a hot coal-improvement product by causing it to exchange heat indirectly with a coolant in a cooler.
CONSTITUTION: The solidification of high-melting oily components such as wax, tar, etc., separated from a coal-improvement product, which is produced by bringing coal into contact with high-temp. and high-pressure water or steam by the flowing method, is prevented by cooling the product at 120°C or higher by causing it to exchange heat indirectly with a coolant in a cooler. The product obtd. at the improvement step is cooled efficeintly and continuously by cooling it with the coolant while the product is flowing through tubes. When the product is a coal-water slurry, a coal fuel is obtd. which can easily be burned, contains only small amts. of sulfur, ash, etc., and is low in cost and excellent in stability during transport and storage.
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Inventors:
SHIBATA KAZUHIRO
TAKANO SHINJI
HASHIMOTO SHO
SUZUKI NORYUKI
TAKINAMI TAKAO
SUDO RYOKO
TAKANO SHINJI
HASHIMOTO SHO
SUZUKI NORYUKI
TAKINAMI TAKAO
SUDO RYOKO
Application Number:
JP24377193A
Publication Date:
January 22, 1997
Filing Date:
September 02, 1993
Export Citation:
Assignee:
NIPPON KOMU KK
NITSUKI KK
NITSUKI KK
International Classes:
C10L1/32; C10L9/00; C10L9/08; (IPC1-7): C10L1/32; C10L9/00; C10L9/08
Attorney, Agent or Firm:
Toshio Inoue