Apparatus to recover sulfur from concentrated acid gas into alkaline solution
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United States of America Patent
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Aug 27, 2002
Grant Date -
N/A
app pub date -
Nov 8, 1999
filing date -
Nov 8, 1999
priority date (Note) -
Expired
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Abstract
An apparatus and method for sulfur recovery uses a scrubber tower with a plurality of vertically spaced scrubber trays in the tower. Sulfide-lean liquor is supplied to each of the trays and an acid gas is supplied to the tower below the trays. A downcomer extends in the tower and through the trays for accumulating liquid from the trays and moving the liquid to the bottom of the tower. The sulfide-lean liquor and acid gas are selected to form a sulfite-rich or sulfide-rich liquor in each of the trays which are brought to the bottom of the tower through the downcomer for removal from the tower.
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