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.
Patent No.:
Date of Patent:
May. 15, 2018
Filed:
Sep. 18, 2014
Applicant:
Ansaldo Energia Ip Uk Limited, London, GB;
Inventors:
Assignee:
ANSALDO ENERGIA IP UK LIMITED, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); F02C 3/34 (2006.01); B01D 53/86 (2006.01); F02C 6/18 (2006.01);
U.S. Cl.
CPC ...
F02C 3/34 (2013.01); B01D 53/8643 (2013.01); F02C 6/18 (2013.01); B01D 2255/707 (2013.01); Y02E 20/16 (2013.01);
Abstract
In a method for operating a gas turbine, NOx is removed from the exhaust gases of the gas turbine by means of a selective catalysis device with the addition of NH3. The method achieves an extremely low NOx content while simultaneously achieving economic consumption of NH3 and avoiding NH3 in the exhaust gas by maintaining the NOx content of the exhaust gas at a constant level via a regulated return of a portion of the exhaust gas in varying operating conditions of the gas turbine, and by adjusting the addition of the NH3 in the selective catalysis device to the constant NOx level.