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.
Patent No.:
Date of Patent:
Feb. 21, 2012
Filed:
Jun. 19, 2009
Applicants:
David Keith, Calgary, CA;
Maryam Mahmoudkhani, Calgary, CA;
Inventors:
David Keith, Calgary, CA;
Maryam Mahmoudkhani, Calgary, CA;
Assignee:
Carbon Engineering Limited Partnership, Calgary, AB, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01D 7/00 (2006.01); C01D 7/24 (2006.01); C01D 7/35 (2006.01); B01D 53/14 (2006.01); B01D 53/62 (2006.01); B01D 53/75 (2006.01); B01D 53/77 (2006.01); C01B 31/24 (2006.01); C01B 31/20 (2006.01); C01G 23/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of carbon dioxide capture is disclosed. In a step (a) anhydrous sodium carbonate is separated from a first aqueous solution formed by reacting carbon dioxide and an aqueous solution of sodium hydroxide. In step (b) the anhydrous sodium carbonate is treated by causticization to generate carbon dioxide and sodium hydroxide. The first aqueous solution of step (a) is formed by scrubbing a gas containing carbon dioxide with an aqueous solution of sodium hydroxide.