Integrated air separation process
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United States of America Patent
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-
Sep 4, 2001
Grant Date -
N/A
app pub date -
Jul 19, 2000
filing date -
Jul 19, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An integrated air separation process produces an O.sub.2 -enriched gas stream and an N.sub.2 -enriched gas stream in an air separation unit. The N.sub.2 -enriched gas stream is heated in a first heat exchanger associated with a first boiler and then power is generated from the heated gas stream. The O.sub.2 -enriched gas stream is introduced with fuel to a combustor associated with the first boiler, producing flue gas. At least a portion of the flue gas exiting the first boiler is used to generate power. In a preferred embodiment, another portion of the flue gas exiting the first boiler is recycled to the first boiler, as a temperature controlling fluid.
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