METHOD OF AND SYSTEM FOR GENERATING POWER BY OXYFUEL COMBUSTION
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United States of America Patent
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Issued Date -
Dec 3, 2009
app pub date -
May 30, 2008
filing date -
May 30, 2008
priority date (Note) -
Abandoned
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Abstract
A method of generating power by oxyfuel combustion. Carbonaceous fuel and oxidant gas are fed into a furnace. In a first operating mode, the oxidant gas includes a stream of substantially pure oxygen conveyed from an oxygen supply for combusting the fuel with the oxygen to produce exhaust gas including mainly carbon dioxide and water. The exhaust gas is discharged from the furnace and is divided into a recycling portion and an end portion. The recycling portion is recycled to the furnace. Heat is transferred from the end portion to the stream of substantially pure oxygen by circulating a liquid heat transfer medium in a passage between an exhaust gas cooler and an oxygen heater.
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