Invention Grant
US09399192B2 Carbon dioxide absorber and carbon dioxide separation/recovery method using the absorber
有权
二氧化碳吸收器和二氧化碳分离/回收方法使用吸收器
- Patent Title: Carbon dioxide absorber and carbon dioxide separation/recovery method using the absorber
- Patent Title (中): 二氧化碳吸收器和二氧化碳分离/回收方法使用吸收器
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Application No.: US14125048Application Date: 2012-06-08
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Publication No.: US09399192B2Publication Date: 2016-07-26
- Inventor: Norikazu Fujimoto , Kyouhei Hattori , Fumihiko Yamaguchi
- Applicant: Norikazu Fujimoto , Kyouhei Hattori , Fumihiko Yamaguchi
- Applicant Address: JP Osaka-Shi
- Assignee: ASAHI KASEI KABUSHIKI KAISHA
- Current Assignee: ASAHI KASEI KABUSHIKI KAISHA
- Current Assignee Address: JP Osaka-Shi
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2011-129327 20110609; JP2011-129438 20110609; JP2011-171263 20110804
- International Application: PCT/JP2012/064843 WO 20120608
- International Announcement: WO2012/169634 WO 20121213
- Main IPC: B01D53/14
- IPC: B01D53/14 ; B01D53/62 ; C01B31/20
Abstract:
The present invention provides a carbon dioxide absorber capable of efficiently and stably removing carbon dioxide in a gas or solution. This carbon dioxide absorber contains an amine compound, a weakly acidic compound and water, the pKb value of the amine compound in an aqueous solution at 30° C. is 4.0 to 7.0, the pKa value of the weakly acidic compound in an aqueous solution at 30° C. is 7.0 to 10.0, and the weakly acidic compound is present in an amount within the range of 0.01 equivalents to 1.50 equivalents with respect to amino groups of the amine compound.
Public/Granted literature
- US20140127119A1 CARBON DIOXIDE ABSORBER AND CARBON DIOXIDE SEPARATION/RECOVERY METHOD USING THE ABSORBER Public/Granted day:2014-05-08
Information query
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