METHODS AND SYSTEMS FOR MINIMIZING NOx AND CO EMISSIONS IN NATURAL DRAFT HEATERS
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United States of America Patent
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Issued Date -
Dec 14, 2023
app pub date -
Aug 25, 2023
filing date -
May 30, 2019
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Abstract
Systems and methods for reducing NOx and CO emissions in a natural draft heater are disclosed. For example, the disclosure provides embodiments of systems and methods for controlling a draft value within a heater shell to deliver an amount of excess air to a burner to thereby maintain at least one of NOx emissions not exceeding 0.025 lb/MMBtu (HHV) and CO emissions not exceeding 0.01 lb/MMBtu (HHV) in a natural draft heater.
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