EXHAUST GAS TREATMENT SYSTEM AND METHOD - MITSUBISHI HEAVY IND LTD

Title:

EXHAUST GAS TREATMENT SYSTEM AND METHOD

Document Type and Number:

WIPO Patent Application WO/2016/117172

Kind Code:

A1

Abstract:

An exhaust gas treatment system provided with: a wet desulfurization unit 13 for removing sulfur oxides in exhaust gas 12A from a boiler 11; a mist collection/aggregation unit 14, which is provided on the downstream side of the desulfurization unit 13 and is for binding SO3 mist contained in exhaust gas 12B from the wet desulfurization unit 13 to each other to enlarge the particle diameter and form aggregated SO3 mist; a CO2 recovery unit 18 obtained from a CO2 absorption column 16, which has a CO2-absorbing section 16A for removing CO2 contained in exhaust gas 12D by bringing same into contact with a CO2-absorbing liquid, and an absorbing liquid-regenerating column 17 for releasing CO2 from said CO2-absorbing liquid that has absorbed CO2 to recover the CO2 and regenerate the CO2-absorbing liquid; and a mist collection section 16C for collecting the CO2-absorbing liquid-enlarged mist in which the aggregated SO3 mist has been enlarged by the absorption of CO2-absorbing liquid inside the CO2-absorbing section 16A.

Inventors:

HIRATA TAKUYA (JP)
NAGAYASU HIROMITSU (JP)
UEDA YASUTOSHI (JP)
NOBORISATO TOMOKI (JP)
TANAKA TAKAO (JP)
KATO MASAYA (JP)

Application Number:

PCT/JP2015/076954

Publication Date:

July 28, 2016

Filing Date:

September 24, 2015

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)
MITSUBISHI HEAVY IND MECHATRONICS SYSTEMS LTD (JP)

International Classes:

B01D53/62; B01D53/14; B01D53/50; C01B32/50; F23J15/00

Domestic Patent References:

WO2008038348A1

2008-04-03

Foreign References:

JP2006218415A	2006-08-24
JPH0893438A	1996-04-09
JP2003053134A	2003-02-25
JP2008238114A	2008-10-09
JPH09262432A	1997-10-07
JP2014000500A	2014-01-09
JP2009226367A	2009-10-08
JP2013006129A	2013-01-10

Other References: