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:
Sep. 22, 2015

Filed:

Jun. 06, 2014
Applicants:

Ranjani V. Siriwardane, Morgantown, WV (US);

Shira Rosencwaig, Newton, MA (US);

Inventors:

Ranjani V. Siriwardane, Morgantown, WV (US);

Shira Rosencwaig, Newton, MA (US);

Assignee:

U.S. Department of Energy, Washington, DC (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/30 (2006.01); B01J 20/04 (2006.01); B01J 20/06 (2006.01); B01D 53/04 (2006.01); B01D 53/52 (2006.01); B01D 53/62 (2006.01);
U.S. Cl.
CPC ...
B01D 53/62 (2013.01);
Abstract

Disclosed herein is a clay-alkali-amine COsorbent composition prepared by integrating a clay substrate, basic alkali salt, and amine liquid. The basic alkali salt is present relative to the clay substrate in a weight ratio of from about 1 part to about 50 parts per 100 parts of the clay substrate. The amine liquid is present relative to a clay-alkali combination in a weight ratio of from about 1 part to about 10 parts per 10 parts of the clay-alkali combination. The clay-alkali-amine C02 sorbent is particularly advantageous for low temperature COremoval cycles in a gas stream having a C02 concentration less than around 2000 ppm and an oxygen concentration around 21%, such as air.


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