Title:
METHOD FOR REGENERATING CARBONATE-TYPE LAYERED DOUBLE HYDROXIDE, ACIDIC EXHAUST GAS TREATMENT METHOD, AND ACIDIC EXHAUST GAS TREATMENT EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2023/089913
Kind Code:
A1
Abstract:
The present invention provides a method for regenerating a used carbonate-type Mg-Al-based layered double hydroxide in which at least some interlayer carbonate ions of the carbonate-type Mg-Al-based layered double hydroxide have been replaced with other anions. The used carbonate-type Mg-Al-based layered double hydroxide is brought into contact with a carbon-dioxide-containing gas that contains carbon dioxide in the presence of an alkali.
Inventors:
ITOU ICHIROU (JP)
YOSHIOKA TOSHIAKI (JP)
KAMEDA TOMOHITO (JP)
YOSHIOKA TOSHIAKI (JP)
KAMEDA TOMOHITO (JP)
Application Number:
PCT/JP2022/033141
Publication Date:
May 25, 2023
Filing Date:
September 02, 2022
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
UNIV TOHOKU (JP)
UNIV TOHOKU (JP)
International Classes:
B01J20/34; B01D53/50; B01D53/56; B01D53/68; B01D53/82; B01J20/08; C01F7/785
Foreign References:
| JP2021090913A | 2021-06-17 | |||
| JP2005193167A | 2005-07-21 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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