Title:
METHOD FOR EXTRACTING CALCIUM, METHOD FOR FIXING CARBON DIOXIDE, AND APPARATUS FOR FIXING CARBON DIOXIDE
Document Type and Number:
WIPO Patent Application WO/2024/043046
Kind Code:
A1
Abstract:
A method for fixing carbon dioxide according to an embodiment of the present invention comprises: a flow-through step for allowing a polyol compound-containing solvent to flow through a slag layer formed by filling a vessel with a calcium-containing slag; an aeration step for aerating a carbon dioxide-containing gas into a calcium extract obtained by allowing the solvent to flow through the slag layer in the flow-through step; and a separation step for performing solid-liquid separation on precipitates precipitated from a mixed liquid obtained in the aeration step, wherein in the flow-through step, the solvent flows through at a rate at which the layer does not flow.
Inventors:
MURAKAMI KAZUKI
SAKAI KOJI
TAKAHASHI YOICHI
SASAKI TATSUYA
SAKAI KOJI
TAKAHASHI YOICHI
SASAKI TATSUYA
Application Number:
PCT/JP2023/028627
Publication Date:
February 29, 2024
Filing Date:
August 04, 2023
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
C22B7/04; B01D53/62; B01D53/78; B01D53/92; C01B32/50; C22B3/16; C22B26/20
Foreign References:
| JP2021070868A | 2021-05-06 | |||
| JP2022045088A | 2022-03-18 | |||
| JP2012131651A | 2012-07-12 |
Attorney, Agent or Firm:
IKEDA Yoshinori (JP)
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