Pulverized fuel supply method for oxyfuel combustion boiler, and oxyfuel combustion boiler system
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United States of America Patent
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Jul 17, 2018
Grant Date -
Aug 28, 2014
app pub date -
May 6, 2014
filing date -
Nov 16, 2011
priority date (Note) -
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Abstract
In an oxyfuel combustion boiler system, nitrogen gas separated by an air separation unit (ASU) is supplied as carrier gas to a pulverizer for drying and pulverization of fuel. A fluid mixture of the nitrogen gas from the pulverizer with pulverized fuel is supplied to a powder separation device where the pulverized fuel is separated. The separated pulverized fuel is mixed with the primary recirculated flue gas and supplied to a burner.
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