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:
Mar. 17, 2015

Filed:

Apr. 22, 2009
Applicants:

David J. Heldebrant, Richland, WA (US);

Clement R. Yonker, Kennewick, WA (US);

Phillip K. Koech, Richland, WA (US);

Inventors:

David J. Heldebrant, Richland, WA (US);

Clement R. Yonker, Kennewick, WA (US);

Phillip K. Koech, Richland, WA (US);

Assignee:

Battelle Memorial Institute, Richland, WA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 17/16 (2006.01); B01D 47/00 (2006.01); B01D 53/14 (2006.01); B01D 53/40 (2006.01);
U.S. Cl.
CPC ...
B01D 53/1493 (2013.01); B01D 53/1425 (2013.01); B01D 53/1456 (2013.01); B01D 53/40 (2013.01); B01D 2257/302 (2013.01); B01D 2257/304 (2013.01); B01D 2257/308 (2013.01); B01D 2257/404 (2013.01); B01D 2257/504 (2013.01);
Abstract

A system and method for acid-gas capture wherein organic acid-gas capture materials form hetero-atom analogs of alkyl-carbonate when contacted with an acid gas. These organic-acid gas capture materials include combinations of a weak acid and a base, or zwitterionic liquids. This invention allows for reversible acid-gas binding to these organic binding materials thus allowing for the capture and release of one or more acid gases. These acid-gas binding organic compounds can be regenerated to release the captured acid gasses and enable these organic acid-gas binding materials to be reused. This enables transport of the liquid capture compounds and the release of the acid gases from the organic liquid with significant energy savings compared to current aqueous systems.


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