The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 07, 2025

Filed:

Dec. 02, 2019
Applicants:

Taiheiyo Cement Corporation, Tokyo, JP;

The University of Tokyo, Tokyo, JP;

Inventors:

Dianchao Wang, Tokyo, JP;

Takafumi Noguchi, Tokyo, JP;

Takahito Nozaki, Chiba, JP;

Yasuhide Higo, Chiba, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/62 (2006.01); B01D 53/14 (2006.01); B01D 53/81 (2006.01);
U.S. Cl.
CPC ...
B01D 53/62 (2013.01); B01D 53/1475 (2013.01); B01D 53/81 (2013.01); B01D 2257/504 (2013.01); B01D 2258/0233 (2013.01);
Abstract

Provided is a simple and low-cost method for efficiently fixing a sufficient amount of carbon dioxide contained in a carbon dioxide-containing gas (e.g. a plant exhaust gas). The method of fixing carbon dioxide comprises a contact step of bringing a carbon dioxide-containing gas having a temperature of 350° C. or more into contact with a cementitious hardened body to fix carbon dioxide in the carbon dioxide-containing gas to the cementitious hardened body. The carbon dioxide-containing gas may be a gas that is free from being supplied with moisture before the contact step and during the contact step. One of examples of the carbon dioxide-containing gas is a plant exhaust gas.


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