Title:
DEVICE AND METHOD FOR PROCESSING COMBUSTION EXHAUST GAS
Document Type and Number:
WIPO Patent Application WO2005005025
Kind Code:
B1
Abstract:
[PROBLEMS] To suppress an increase in the discharge amount of harmful substances and operating cost in a cement kiln. [MEANS FOR SOLVING PROBLEMS] This combustion exhaust gas G processing device comprises a dust collector (6) collecting dust in combustion exhaust gas G, a wet dust collector (7) collecting water soluble components and dust in the combustion exhaust gas G passed through the dust collector (6), and a catalyst tower (12) decomposing and removing NOx and/or dioxins in the combustion exhaust gas G passed through the wet dust collector (7). The device also comprises a reheater (11) heating the combustion exhaust gas G discharged from the wet dust collector (7) at the front stage of the catalyst tower (12) and an oxidizer adding device (10) adding an oxidizer to the combustion exhaust gas G passed through the dust collector (6). The device desirably comprises a solid/liquid separator (16) separating slurry discharged from the wet dust collector (7) into solid and liquid phases, a mercury adsorbing tower (17) adsorbing mercury in liquid separated in the solid/liquid separator (16), and a heat recovering device (13) heating the combustion exhaust gas G discharged from the catalyst tower (12) at the rear stage of the catalyst tower (12).
Inventors:
SAITO SHINICHIRO (JP)
Application Number:
PCT/JP2004/009097
Publication Date:
March 17, 2005
Filing Date:
June 28, 2004
Export Citation:
Assignee:
TAIHEIYO CEMENT CORP (JP)
SAITO SHINICHIRO (JP)
SAITO SHINICHIRO (JP)
International Classes:
B01D53/64; B01D53/86; (IPC1-7): B01D53/56; B01D47/06
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