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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.:

US 9205371 B1

PDFFull Text
Date of Patent:
Dec. 08, 2015

Filed:

Dec. 23, 2011

Method for improving total energy demand in a post-combustion carbon capture process with ionic absorbent

Applicants:

Russell Evan Cooper, Fairfield, CA (US);

Daniel Chinn, Bay Point, CA (US);

Zunqing He, San Rafael, CA (US);

Hye Hyung Timken, Albany, CA (US);

Michael S. Driver, San Francisco, CA (US);

James H. Davis, Jr., Mobile, AL (US);

Kevin N. West, Mobile, AL (US);

Inventors:

Russell Evan Cooper, Fairfield, CA (US);

Daniel Chinn, Bay Point, CA (US);

Zunqing He, San Rafael, CA (US);

Hye Hyung Timken, Albany, CA (US);

Michael S. Driver, San Francisco, CA (US);

James H. Davis, Jr., Mobile, AL (US);

Kevin N. West, Mobile, AL (US);

Assignees:

Chevron U.S.A. Inc., San Ramon, CA (US);

University of South Alabama, Mobile, AL (US);

Attorney:

M. Carmen & Associates, PLLC

Primary Examiner:

Stuart Hendrickson

Assistant Examiner:

Daniel Berns

Int. Cl.
CPC ...
B01D 53/62 (2006.01); B01J 31/02 (2006.01); C07C 309/69 (2006.01); C07C 323/25 (2006.01); B01D 53/78 (2006.01); B01D 53/96 (2006.01); B01D 53/14 (2006.01);
U.S. Cl.
CPC ...
B01D 53/1493 (2013.01); B01D 53/1475 (2013.01); B01D 53/62 (2013.01); B01D 2252/2056 (2013.01); B01D 2252/20405 (2013.01); B01D 2252/20426 (2013.01); B01D 2252/30 (2013.01); B01D 2258/0283 (2013.01); Y02C 10/04 (2013.01); Y02C 10/06 (2013.01); Y02C 10/08 (2013.01);
Abstract

Disclosed herein is a method for improving the total energy demand required to separate carbon dioxide (CO) from an aqueous ionic absorbent solution in a post-combustion carbon capture process. The method involves (a) contacting a flue gas stream containing COwith an aqueous ionic absorbent solution under absorption conditions to absorb at least a portion of the COfrom the flue gas stream and form a CO-aqueous ionic absorbent solution stream, wherein the aqueous ionic absorbent solution comprises one or more diluents and an ionic absorbent containing a cation and an anion comprising an amine moiety; and (b) subjecting at least a portion of the CO-aqueous ionic absorbent solution stream to desorption conditions to form a CO-rich stream and an aqueous ionic absorbent solution stream having a reduced COcontent.

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