METHOD FOR HEATING A FURNACE
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United States of America Patent
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Aug 8, 2024
app pub date -
Jun 2, 2022
filing date -
Jun 2, 2021
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Abstract
The invention relates to a method for heating a furnace, wherein the furnace comprises an inner chamber and a outer chamber. A process gas is introduced into the inner chamber. A fuel is combusted with an oxidant to produce combustion gases in a combustion chamber. The combustion gases are passed through the outer chamber, and recirculated to the combustion chamber. The process gas is pre-heated by indirect heat exchange with the combustion gases.
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