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:
Nov. 28, 2017
Filed:
May. 26, 2011
Marta DE LA Cruz Garcia, Zürich, CH;
Thierry Lachaux, Birr, CH;
Andre Burdet, Savigny, CH;
Jaan Hellat, Baden-Rütihof, CH;
Marta De La Cruz Garcia, Zürich, CH;
Thierry Lachaux, Birr, CH;
Andre Burdet, Savigny, CH;
Jaan Hellat, Baden-Rütihof, CH;
ANSALDO ENERGIA SWITZERLAND AG, Baden, CH;
Abstract
An exemplary method for the operation of a CCPP with flue gas recirculation to reduce NOx emissions and/or to increase the CO2 concentration in the flue gases to facilitate CO2 capture from the flue gases as well as a plant designed to operate is disclosed. To allow a high flue gas recirculation ration (rFRG) an imposed combustion inhomogeneity ratio (ri) is used for flame stabilization. The imposed combustion inhomogeneity ratio (ri) is controlled as function of the flue gas recirculation rate (rFRG) and/or combustion pressure. Oxygen or oxygen enriched air to the gas turbine inlet gases or to the combustor is admixed to enhance operatability.