Importance

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Abstract

A fuel oxygen reduction unit is provided that includes an inlet fuel line and an outlet fuel line; an oxygen transfer assembly in fluid communication with the inlet fuel line, the outlet fuel line, and a stripping gas flowpath for reducing an amount of oxygen in an inlet fuel flow through the inlet fuel line using a stripping gas flow through the stripping gas flowpath; a catalyst in communication with the stripping gas flowpath at a location downstream of the oxygen transfer assembly, the catalyst configured to reduce an oxygen content of the stripping gas flow through the stripping gas flowpath; and a recuperative heat exchanger in airflow communication with the stripping gas flowpath at a location downstream of the catalyst and upstream of the catalyst for exchanging heat from the stripping gas flow flowing from the catalyst with the stripping gas flow flowing through the recuperative heat exchanger at the location upstream of the catalyst.

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First Claim