Title:
EXHAUST GAS TREATMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/115305
Kind Code:
A1
Abstract:
An exhaust gas treatment device is provided with: a denitrator (13) for removing nitrogen oxides in exhaust gas (12) from a boiler (11); an air preheater (14) for recovering heat in the exhaust gas (12) after nitrogen oxide removal; an electric dust collector (15) for removing smoke dust in the exhaust gas (12) after heat recovery; a gas-liquid contact type desulfurization device (16) for removing sulfur oxides in the exhaust gas (12) after dust removal; a chimney (17) for exhausting the exhaust gas after desulfurization to the outside; an SO3 remover supply unit (32) for supplying an SO3 remover (31) into the exhaust gas (12) inside the exhaust gas flue at a supply part (X) on the upstream side of the dust collector (15); and a moist state treatment unit (41) for forming a moist state in part of the exhaust gas (12) within the exhaust gas flue (20) on the upstream side of the supply part (X) at which the SO3 remover (31) is supplied inside the exhaust gas flue (20) and on the downstream side of the air preheater (14).
Inventors:
KAMIYAMA NAOYUKI (JP)
KAGAWA SEIJI (JP)
FUKUDA TOSHIHIRO (JP)
USHIKU TETSU (JP)
KAGAWA SEIJI (JP)
FUKUDA TOSHIHIRO (JP)
USHIKU TETSU (JP)
Application Number:
PCT/JP2015/051726
Publication Date:
August 06, 2015
Filing Date:
January 22, 2015
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
B01D53/50; B01D53/56; B01D53/64; B01D53/81; F23J15/00; F23J15/04
Domestic Patent References:
| WO2008078721A1 | 2008-07-03 |
Foreign References:
| JPH04135618A | 1992-05-11 | |||
| JPH09141050A | 1997-06-03 | |||
| JPS6135827A | 1986-02-20 | |||
| JP2000121032A | 2000-04-28 | |||
| JPH10272335A | 1998-10-13 | |||
| JPS51152043U | 1976-12-04 |
Attorney, Agent or Firm:
SAKAI, Hiroaki et al. (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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