PROCESSING METHOD AND DEVICE FOR EXHAUST GAS CONTAINING CARBON DIOXIDE

Title:

PROCESSING METHOD AND DEVICE FOR EXHAUST GAS CONTAINING CARBON DIOXIDE

Document Type and Number:

WIPO Patent Application WO/2012/029704

Kind Code:

A1

Abstract:

[Problem] To provide a processing method for exhaust gas containing CO2, said method enabling the concentration of an oxidation inhibitor in an absorbent solution to be adjusted to a concentration which is sufficient for the inhibition of oxidation, without measuring the concentration of an alkanolamine oxidation inhibitor contained in a CO2 absorbing solution. [Solution] A method and device for adjusting the composition of an absorbent solution which carries out the absorption and discharge of carbon dioxide, by adding an oxidation inhibitor to an alkanolamine absorbent liquid when the sum of the concentration of ammonia and alkylamine in absorber outlet gas from a CO2 absorption device increases.

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Inventors:

YOKOYAMA KOICHI (JP)
TAKAMOTO SHIGEHITO (JP)
MIYAMOTO EIJI (JP)
ODA NAOKI (JP)

Application Number:

PCT/JP2011/069424

Publication Date:

March 08, 2012

Filing Date:

August 29, 2011

Export Citation:

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Assignee:

BABCOCK HITACHI KK (JP)
YOKOYAMA KOICHI (JP)
TAKAMOTO SHIGEHITO (JP)
MIYAMOTO EIJI (JP)
ODA NAOKI (JP)

International Classes:

B01D53/62; B01D53/14; C01B32/50

Foreign References:

JPH09875A	1997-01-07
JPH05245340A	1993-09-24
JPH07209271A	1995-08-11

Other References: