System and method for removing a solution phase metal from process liquor
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United States of America Patent
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Feb 3, 2004
Grant Date -
Jan 16, 2003
app pub date -
Jul 10, 2001
filing date -
Jul 10, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A galvanic cell system (50) in fluid communication with a dewatering system (40) of an inhibited oxidation scrubber (20) removes an oxidation catalyst, i.e., solution phase iron (98), from the process liquor (42) produced by the dewatering system (40) and replaces the iron (98) with magnesium (104) in an oxidation-reduction reaction. An electrolytic cell system (154) in fluid communication with a dewatering system (144) of a forced oxidation scrubber (128) removes an oxidation inhibitor, i.e., solution phase aluminum (174), from the process liquor (146) produced by the dewatering system (144) and replaces the aluminum (174) with iron (170) in an oxidation-reduction reaction. The process liquor (42, 146) is subsequently returned to the scrubber (20, 128) with the solution phase metal (98, 174) selectively removed, thereby enhancing the scrubbing efficiency of the scrubber (20, 128).
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