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:
Dec. 02, 2025

Filed:

Dec. 14, 2021
Applicant:

Dow Global Technologies Llc, Midland, MI (US);

Inventors:

John R. Dowdle, Lake Jackson, TX (US);

Zubin B. Kuvadia, Pearland, TX (US);

Amanda M. Goodman, Missouri City, TX (US);

Diego E. Cristancho, Lake Jackson, TX (US);

Simone T. Lazar, Pearland, TX (US);

Assignee:

Dow Global Technologies LLCmi, Midland, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/14 (2006.01);
U.S. Cl.
CPC ...
B01D 53/1493 (2013.01); B01D 53/1456 (2013.01); B01D 2252/20489 (2013.01); B01D 2252/504 (2013.01); B01D 2257/504 (2013.01);
Abstract

An aqueous absorption medium for removal of acid gases from a gaseous stream includes at least one tertiary alkanolamine and at least one secondary alkanolamine. A total weight of the at least one tertiary alkanolamine and the at least one secondary alkanolamine account for an amine weight of the aqueous absorption medium. The amine weight of the aqueous absorption medium is from 25 wt % to 65 wt %, based on a total weight of the aqueous absorption medium, and the at least one secondary alkanolamine is present in an amount from 11 wt % to 45 wt %, based on the amine weight of the aqueous absorption medium.


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