Method for distributing gas for oxy-fuel combustion in circulating fluidized bed
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United States of America Patent
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Jan 8, 2019
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Jul 14, 2016
app pub date -
Nov 6, 2014
filing date -
Sep 6, 2013
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Abstract
The present disclosure provides a method for distributing gas for oxy-fuel combustion on a circulating fluidized bed. In the method, the gas is provided by three stages into a furnace of the circulating fluidized bed. The method includes: blowing in a first-stage gas containing oxygen and recycled flue gas from the bottom of the furnace; blowing in a second-stage gas containing recycled flue gas from a transition zone between a dense-phase zone and a dilute-phase zone of the furnace; and blowing in a third-stage gas containing oxygen from a side wall of the furnace.
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