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Waste gas treatment process including removal of mercury

  • US 20060286017A1
  • Filed: 06/20/2005
  • Published: 12/21/2006
  • Est. Priority Date: 06/20/2005
  • Status: Active Grant
First Claim
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1. A process for removing contaminants from a waste gas stream comprising:

  • a) treating the waste gas stream to remove at least one of SO2 and NOx and to obtain a lean stream having a reduced level of at least one of SO2 and NOx; and

    , b) contacting the lean gas stream with a mercury absorbent solution comprising permanganate to remove mercury vapour and to obtain a mercury lean stream and a mercury rich absorbent solution.

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