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. 27, 2026

Filed:

Oct. 29, 2021
Applicant:

Precision Combustion, Inc., North Haven, CT (US);

Inventors:

Jeffrey G. Weissman, Guilford, CT (US);

Codruta Maria Zoican-Loebick, North Haven, CT (US);

Assignee:

Precision Combustion, Inc., North Haven, CT (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/04 (2006.01); B01D 53/62 (2006.01); B01D 53/82 (2006.01); B01D 53/96 (2006.01); B01J 20/08 (2006.01); B01J 20/30 (2006.01); B01J 20/34 (2006.01);
U.S. Cl.
CPC ...
B01J 20/041 (2013.01); B01D 53/62 (2013.01); B01D 53/82 (2013.01); B01D 53/96 (2013.01); B01J 20/08 (2013.01); B01J 20/3078 (2013.01); B01J 20/3085 (2013.01); B01J 20/3483 (2013.01); B01D 2251/404 (2013.01); B01D 2253/1124 (2013.01); B01D 2257/504 (2013.01); B01D 2258/0283 (2013.01);
Abstract

A solid sorbent composition including calcium oxide, calcium aluminate, and a mixed metal oxide characterized by a perovskite crystalline structure, for example, lanthanum aluminate. The solid sorbent finds utility in capturing carbon dioxide from a gaseous stream containing carbon dioxide, such as emissions streams produced in combustion processes or streams derived from closed environments including airplanes, spaceships, and submarines. A reversible carbon dioxide process is disclosed involving (a) contacting a carbon dioxide-containing gaseous stream with the solid sorbent composition in a carbonator to produce a solid mixture containing calcium carbonate and a gaseous product stream reduced in carbon dioxide concentration; and (b) heating the solid mixture containing calcium carbonate in a calcinator (decarbonator) to regenerate the solid sorbent composition and produce a gaseous stream enriched in carbon dioxide.


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