Title:
石炭燃焼からの二酸化イオウ放出の減少
Document Type and Number:
Japanese Patent JP2004536163
Kind Code:
A
Abstract:
A process of treating high sulfur coal to reduce sulfur dioxide emission when the high sulfur coal is burned comprising placing coal in pressure tank ( 16 ) of reduced pressure sufficient to fracture a portion of the coal by withdrawing ambient fluids trapped within the coal. The fractured coal is contacted with an aqueous silica colloid composition supersaturated with calcium carbonate via conduit ( 21 ), and the majority of the aqueous composition is then removed from contact with the coal. The aqueous composition-treated coal is pressurized in pressure tank ( 16 ) under a carbon dioxide atmosphere for a period of time sufficient for the calcium carbonate to enter fractures in the coal produced in the first step.
Inventors:
HOLCOMB,Robert,R.
Application Number:
JP2002578361A
Publication Date:
December 02, 2004
Filing Date:
March 28, 2002
Export Citation:
Assignee:
SG Technology Holdings, Limited Liability Company
International Classes:
C01B33/141; C10L5/00; C10L9/00; C10L9/02; C10L9/10; F23K1/00; (IPC1-7): C10L5/00
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Kazuo Yoshii
Masaya Nishiyama
Takashi Ishida
Tetsuji Koga
Kazuo Yoshii
Masaya Nishiyama