Acid gas enrichment process
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United States of America Patent
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Issued Date -
Apr 1, 2004
app pub date -
Sep 29, 2003
filing date -
Sep 27, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Processes for enriching acid gases for sulphur plant feeds and for producing a commercially valuable CO.sub.2 by-product include a sour gas stream contacting an absorbent in an absorber, and regenerating the absorbent to produce a regenerated absorbent and an acid gas stream. A portion of the acid gas stream is recycled to produce higher ratios of hydrogen sulphide to carbon dioxide. Multiple absorbers and recycle streams can be used.
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