Method and system of converting thermal energy into a useful form
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United States of America Patent
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Sep 14, 1999
Grant Date -
N/A
app pub date -
Oct 9, 1996
filing date -
Oct 9, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of implementing a thermodynamic cycle by expanding a gaseous working stream to transform its energy into a useful form and produce an expanded gaseous stream, removing from the expanded gaseous stream an extracted stream, absorbing the extracted stream into a lean stream having a higher content of higher-boiling component than is contained in the extracted stream to form a combined extracted/lean stream, at least partially condensing the combined extracted/lean stream, combining at least part of the combined extracted/lean stream in condensed form with an oncoming working stream including a rich stream having a lower content of higher-boiling component than is contained in the extracted stream to provide a combined working stream, and heating the combined working stream with external heat to provide the gaseous working stream.
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