Title:
DISCHARGE-GAS TREATMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/187294
Kind Code:
A1
Abstract:
A discharge-gas treatment system which includes: a CO2 absorption tower (32) in which an introduced combustion discharge gas (11) is brought into countercurrent contact with an amine-based absorption liquid serving as a CO2-absorbing liquid, thereby removing CO2; and an absorption-liquid regeneration tower (33) in which the CO2 absorbed in the amine-based absorption liquid is released therefrom to regenerate the amine-based absorption liquid. The lean solution (31b) resulting from the removal of CO2 in the absorption-liquid regeneration tower (33) is supplied to the CO2 absorption tower (32) and reutilized as an amine-based absorption liquid (lean solution (31b)). The CO2 absorption tower (32) is equipped with: a CO2 absorption part (34) in which the CO2 contained in the combustion discharge gas (11) is absorbed by the amine-based absorption liquid (lean solution (31b)); and a water-repellent filter part (36) which has been disposed on the upper (gas-flow downstream) side of the CO2 absorption part (34) and which collects the misty amine-based absorption liquid that has accompanied the CO2-free discharge gas (12A). The misty amine that has accompanied the CO2-free discharge gas (12A) is collected.
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Inventors:
NAGAYASU HIROMITSU (JP)
KAMIJO TAKASHI (JP)
SATO YUICHIRO (JP)
HIRATA TAKUYA (JP)
TANAKA HIROSHI (JP)
HORIZOE KOUJI (JP)
KAMIJO TAKASHI (JP)
SATO YUICHIRO (JP)
HIRATA TAKUYA (JP)
TANAKA HIROSHI (JP)
HORIZOE KOUJI (JP)
Application Number:
PCT/JP2013/065591
Publication Date:
December 19, 2013
Filing Date:
June 05, 2013
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
B01D53/62; B01D53/14; C01B32/50
Domestic Patent References:
| WO2011152547A1 | 2011-12-08 |
Foreign References:
| JP2011115724A | 2011-06-16 | |||
| JP2002126439A | 2002-05-08 | |||
| JPH03187A | 1991-01-07 | |||
| JPH06107845A | 1994-04-19 | |||
| JPH03193116A | 1991-08-22 | |||
| JP2002126439A | 2002-05-08 | |||
| JPH1033938A | 1998-02-10 |
Other References:
See also references of EP 2862620A4
Attorney, Agent or Firm:
SAKAI, Hiroaki et al. (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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