Title:
REGENERATION METHOD FOR CARBONATE TYPE LAYERED DOUBLE HYDROXIDE, ACIDIC EXHAUST GAS TREATMENT METHOD, AND ACIDIC EXHAUST GAS TREATMENT FACILITY
Document Type and Number:
Japanese Patent JP2023076288
Kind Code:
A
Abstract:
To provide a regeneration method for a carbonate type layered double hydroxide which can efficiently regenerate a used layered double hydroxide obtained by using a carbonate type Mg-Al-based layered double hydroxide in acidic exhaust gas treatment to a carbonate type Mg-Al-based layered double hydroxide without requiring a large-scale facility.SOLUTION: A regeneration method for a used carbonate type layered double hydroxide in which at least a part of interlayer carbonate ions of a carbonate type Mg-Al-based layered double hydroxide is exchanged with other anion brings the used carbonate type Mg-Al-based layered double hydroxide into contact with carbon dioxide-containing gas containing carbon dioxide in the presence of alkali.SELECTED DRAWING: None
Inventors:
ITO ICHIRO
YOSHIOKA TOSHIAKI
KAMEDA TOMOHITO
YOSHIOKA TOSHIAKI
KAMEDA TOMOHITO
Application Number:
JP2021189622A
Publication Date:
June 01, 2023
Filing Date:
November 22, 2021
Export Citation:
Assignee:
KURITA WATER IND LTD
UNIV TOHOKU
UNIV TOHOKU
International Classes:
B01J20/34; B01D53/50; B01D53/56; B01D53/68; B01D53/82; B01J20/08; C01F7/785
Domestic Patent References:
| JP2021090913A | 2021-06-17 | |||
| JP2005193167A | 2005-07-21 |
Attorney, Agent or Firm:
Patent Attorney Corporation Otani Patent Office
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