METHOD FOR USING HEAT FROM COMBUSTION TURBINE EXHAUST TO DRY FUEL FEEDSTOCKS
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United States of America Patent
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app pub date -
Sep 17, 2007
filing date -
Aug 7, 2006
priority date (Note) -
Abandoned
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Abstract
A system for drying fuel feedstocks, comprising a heat exchanger to heat an initial nitrogen gas and a combustion turbine engine for producing a combustion turbine exhaust. An apparatus for forming a pulverized fuel receives the heated nitrogen gas and combustion turbine exhaust, forming a steam and nitrogen mixture with the pulverized fuel source. A filter receives the mixture for filtering the dried fuel feedstock from the steam and nitrogen. The system further comprises a blower for applying a vacuum to the filter to separate the steam and nitrogen mixture into a discharge stream for and a recycle stream for mixing with additional dry nitrogen gas prior to mixing with combustion turbine exhaust in a continuous process.
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