Title:
WET FLUE GAS DESULFURIZATION DEVICE AND METHOD OF OPERATING WET FLUE GAS DESULFURIZATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/158781
Kind Code:
A1
Abstract:
The present invention comprises: an absorption tower 11 that removes sulfur oxides in an exhaust gas with an absorbent solution 14; an absorbent solution storage unit 11b that stores the absorbent solution that has absorbed the sulfur oxides; a redox potential meter 18 that measures the redox potential of the absorbent solution 14; a reducing-additive supply unit 20 that supplies a sulfur oxoacid-based reducing-additive 19 into the absorbent solution 14 or the absorbent solution storage unit 11b; and a control device 50 that controls the reducing-additive supply unit 20 on the basis of the redox potential measurement value for the absorbent solution 14 measured by the redox potential meter 18. If the redox potential measurement value exceeds an upper limit of a suitable range for the redox potential, the control device 50 controls the reducing additive supply unit 20 so as to supply the sulfur oxoacid-based reducing-additive 19.
Inventors:
HONJO SHINTARO (US)
INABA NORIKAZU (US)
OKAMOTO TAKUYA (JP)
HASHIMOTO JUN (US)
KAMIYAMA NAOYUKI (JP)
INABA NORIKAZU (US)
OKAMOTO TAKUYA (JP)
HASHIMOTO JUN (US)
KAMIYAMA NAOYUKI (JP)
Application Number:
PCT/JP2016/059690
Publication Date:
October 06, 2016
Filing Date:
March 25, 2016
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
B01D53/50; B01D53/14; B01D53/78; B01D53/79; B01D53/80
Foreign References:
| JP2013006144A | 2013-01-10 | |||
| JPH11267447A | 1999-10-05 | |||
| JP2010269277A | 2010-12-02 | |||
| US20080233024A1 | 2008-09-25 |
Other References:
See also references of EP 3275529A4
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
Patent business corporation Sakai international patent firm (JP)
Patent business corporation Sakai international patent firm (JP)
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