Gas turbine power plant with flue gas recirculation and oxygen-depleted cooling gas
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United States of America Patent
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Mar 29, 2016
Grant Date -
Sep 27, 2012
app pub date -
Mar 21, 2012
filing date -
Mar 22, 2011
priority date (Note) -
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Abstract
A method is disclosed for operating a gas turbine power plant having a gas turbine, a heat recovery steam generator and an flue gas splitter which splits flue gases into a first flue gas flow for recirculation into an inlet flow of the gas turbine and into a second flue gas flow for discharge to an environment. An oxygen-depleted gas can be used in an open cooling system for cooling hot gas parts of the gas turbine. A split compressor intake can be provided for separate feed of recirculated flue gas and fresh air into a compressor intake. Compressor blades can include a separating band which blocks intermixing of recirculated flue gas and fresh air during compression.
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