Title:
CARBON DIOXIDE FIXATION METHOD AND FIXATION SYSTEM, AND CARBONATE PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/140336
Kind Code:
A1
Abstract:
Provided is a carbon dioxide fixation method in which a Group II element ion-containing aqueous solution (B) (the Group II element ion-containing aqueous solution (B) comprising at least an alkaline earth metal ion) is brought into contact with a carbon dioxide-derived carbonic acid ion in the presence of one or more amine compounds (A) selected from the group consisting of amines synthesized in vivo, artificially synthesized amines, and polymers of the foregoing amines to generate a carbonate of an alkaline earth metal. The carbon fixation method comprises a step (S) for using a carbon dioxide-containing gas (C) to suppress the increase in pH of the Group II element ion-containing aqueous solution (B) caused by the amine compound (A).
Inventors:
YASUMOTO KO (JP)
HIROSE MINA (JP)
KATSUMATA SATOSHI (JP)
MUTA UEDA NAOYUKI (JP)
MORIYASU KENJI (JP)
SUZUKI MICHIO (JP)
HIROSE MINA (JP)
KATSUMATA SATOSHI (JP)
MUTA UEDA NAOYUKI (JP)
MORIYASU KENJI (JP)
SUZUKI MICHIO (JP)
Application Number:
PCT/JP2023/001590
Publication Date:
July 27, 2023
Filing Date:
January 19, 2023
Export Citation:
Assignee:
THE KITASATO INST (JP)
IDEMITSU KOSAN CO (JP)
UNIV TOKYO (JP)
NIHON KAISUI CO LTD (JP)
IDEMITSU KOSAN CO (JP)
UNIV TOKYO (JP)
NIHON KAISUI CO LTD (JP)
International Classes:
C01F11/18; B01D53/14; B01D53/62; B01D53/78; C01B32/50
Foreign References:
| JP2013047173A | 2013-03-07 | |||
| JP2017513806A | 2017-06-01 | |||
| JPH07267634A | 1995-10-17 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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