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:
Sep. 08, 2009
Filed:
Jan. 09, 2006
Eribert Benz, Birmenstorf, CH;
Peter Flohr, Turgi, CH;
Manfred Wirsum, Baden-Daettwil, CH;
Alstom Technology Ltd., Baden, CH;
Abstract
In a method for operating a gas turbine () in a combined cycle power plant (), air, which is used to burn a syngas that is recovered from coal is drawn in by the gas turbine () and compressed, is led to a combustor (), and a portion of the compressed air is separated into oxygen and nitrogen. An improved degree of efficiency is achieved by virtue of the fact that a gas turbine () with reheating is used, which includes two combustors () and two turbines (), in which, in the first combustor () syngas is burned using compressed air, and the resultant hot gases are expanded and in which, in the second combustor, syngas is burned using the gases coming from the first turbine () and the resultant hot gases are expanded in the second turbine (), and that the nitrogen that occurs in the separation of the air is used to cool the gas turbine ().