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. 24, 2015

Filed:

Jan. 07, 2014
Applicant:

Alstom Technology Ltd, Baden, CH;

Inventor:

Sanjay Kumar Dube, Knoxville, TN (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/58 (2006.01); B01D 53/62 (2006.01); B01D 53/75 (2006.01); B01D 53/78 (2006.01); B01D 53/96 (2006.01);
U.S. Cl.
CPC ...
B01D 53/62 (2013.01); B01D 53/96 (2013.01);
Abstract

An ammonia recovery system and method for removing ammonia from a gas stream is provided. The system includes an ammonia recovery vessel for contacting a solution, having a dissolved acidic salt, with the gas stream, having ammonia. The dissolved acidic salt solution absorbs the ammonia in the gas stream to provide an ammonia-lean gas stream and an ammonia-rich solution. The ammonia-rich solution is heated within an ammonia stripper to release the ammonia from the ammonia-rich solution to thereby generate an ammonia-rich gas stream and the solution having dissolved acidic salt. A heat exchanger heats the dissolved acidic salt from the ammonia stripper prior to the solution being provided to the ammonia recovery system. The acidic salt has a low thermal decomposition.


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