Title:
METHOD FOR DECOMPOSING NITROSATED AMINE, AND METHOD FOR RECOVERING CARBON DIOXIDE FROM GAS TO BE TREATED
Document Type and Number:
WIPO Patent Application WO/2015/005302
Kind Code:
A1
Abstract:
A method for decomposing a nitrosated amine to regenerate the amine, the method comprising heating a liquid to be treated which contains a nitrosated amine, such as an aqueous amine solution used for absorbing carbon dioxide contained in a combustion discharge gas, at a temperature which is not lower than the boiling point of water and is not higher than the boiling point of the amine, either after the pH of the liquid to be treated is adjusted to a value less than 3 or in the presence of a hydrohalogenic acid such as hydrochloric acid or hydrobromic acid; and a method for recovering carbon dioxide from a gas to be treated, the method comprising using a CO2-absorbing liquid that contains the regenerated amine.
Inventors:
YOKOYAMA KOICHI (JP)
TAKAMOTO SHIGEHITO (JP)
MIYAMOTO EIJI (JP)
SHIMAMURA JUN (JP)
TAKAMOTO SHIGEHITO (JP)
MIYAMOTO EIJI (JP)
SHIMAMURA JUN (JP)
Application Number:
PCT/JP2014/068109
Publication Date:
January 15, 2015
Filing Date:
July 08, 2014
Export Citation:
Assignee:
BABCOCK HITACHI KK (JP)
International Classes:
B01D53/62; B01D53/14; C07C209/42; C07C211/07; C07C213/02; C07C215/08
Foreign References:
| JPH0889756A | 1996-04-09 | |||
| JP2012520167A | 2012-09-06 | |||
| JP2006527153A | 2006-11-30 | |||
| JP2011115724A | 2011-06-16 |
Attorney, Agent or Firm:
KIKUMA, TADAYUKI (JP)
Tadayuki Kikuma (JP)
Tadayuki Kikuma (JP)
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