Title:
EXHAUST GAS TREATMENT APPARATUS
Document Type and Number:
Japanese Patent JP3839450
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an exhaust gas treatment apparatus which suppresses the deterioration of a denitration catalyst and has a long life.
SOLUTION: The exhaust gas treatment apparatus is provided with a first bag filter 15 which removes dusts in exhaust gas, an activated carbon supply means 23 which is arranged on the back stream side of the first bag filter 15 and mixes activated carbon to the dust-removed exhaust gas and a second bag filter 17 which is arranged on the back stream side of the activated carbon supply means 23, carries the denitration catalyst and allows the activated carbon supplied by the activated carbon supply means 23 to be stuck to the surface thereof. The exhaust gas is cleaned by the first bag filter 15 metals in the dusts is removed, by passing through the first bag filter 15, a treating temperature of the second bag filter 17 is lowered up to the temperature which does not cause firing of the activated carbon, by allowing the dust-removed exhaust gas to pass through the second bag filter 17, heavy metals and dioxins in the exhaust gas are removed with the activated carbon stuck to the surface thereof and denitration is performed.
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Inventors:
Tsuneo Oku
Shuhei Ishii
Shuhei Ishii
Application Number:
JP2004297727A
Publication Date:
November 01, 2006
Filing Date:
October 12, 2004
Export Citation:
Assignee:
Babcock Hitachi Ltd.
International Classes:
B01D53/64; B01D51/00; B01D53/50; B01D53/56; B01D53/68; B01D53/70; B01D53/81; B01D53/94; (IPC1-7): B01D53/64; B01D51/00; B01D53/50; B01D53/56; B01D53/68; B01D53/70; B01D53/81; B01D53/94
Domestic Patent References:
| JP4045827A | ||||
| JP4219124A | ||||
| JP5220338A | ||||
| JP5293335A | ||||
| JP51123771A |
Attorney, Agent or Firm:
Kenjiro Take