Coal-fired power generation system and air heat with recirculation path and related method
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United States of America Patent
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Jul 16, 2024
Grant Date -
May 18, 2023
app pub date -
Nov 12, 2021
filing date -
Nov 12, 2021
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Abstract
A coal-fired power generation system may include a boiler outputting flue gas, a coal pulverizer associated with the boiler, and a heat exchanger. The heat exchanger may be configured to exchange heat from the flue gas to a primary air path and a secondary air path. The primary air path is coupled to the coal pulverizer, and the secondary air path is coupled to the boiler. The coal-fired power generation system may include a controllable air recirculation path coupled from an output of the primary air path to an input of the secondary air path.
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