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. 29, 2022

Filed:

Oct. 10, 2018
Applicant:

Ecolab Usa Inc., St. Paul, MN (US);

Inventors:

Nicholas R. Denny, Glen Ellyn, IL (US);

Bruce A. Keiser, Plainfield, IL (US);

David M. Dotzauer, St. Paul, MN (US);

Wayne M. Carlson, Batavia, IL (US);

Assignee:

ECOLAB USA INC., St. Paul, MN (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/64 (2006.01); A61L 2/20 (2006.01); A61L 101/20 (2006.01); A61L 101/36 (2006.01); B01D 53/78 (2006.01); B01D 53/50 (2006.01);
U.S. Cl.
CPC ...
B01D 53/64 (2013.01); A61L 2/208 (2013.01); B01D 53/78 (2013.01); A61L 2101/36 (2020.08); B01D 53/502 (2013.01); B01D 2251/108 (2013.01); B01D 2251/304 (2013.01); B01D 2251/404 (2013.01); B01D 2251/70 (2013.01);
Abstract

A method for the reduction and prevention of mercury emissions into the environment from combusted fossil fuels or other off-gases with the use of peracetic acid is disclosed. The peracetic acid is used for the capture of mercury from the resulting flue gases using a flue gas desulfurization system or scrubber. The method uses peracetic acid in conjunction with a scrubber to capture mercury and lower its emission and/or re-emission with stack gases. The method allows the use of coal as a cleaner and environmentally friendlier fuel source as well as capturing mercury from other processing systems.


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