Method for the removal of elemental mercury from a gas stream

Details Method for the removal of elemental mercury from a gas stream Method for the removal of elemental mercury from a gas stream

1997-08-18

1999-05-04

Willis, Prince

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

96234, 423107, C22B 310

Patent

active

059000422

ABSTRACT:
A method is provided to remove elemental mercury from a gas stream by reacting the gas stream with an oxidizing solution to convert the elemental mercury to soluble mercury compounds. Other constituents are also oxidized. The gas stream is then passed through a wet scrubber to remove the mercuric compounds and oxidized constituents.

REFERENCES:
patent: 5328673 (1994-07-01), Kaczur et al.
patent: 5569436 (1996-10-01), Lerner et al.
patent: 5575982 (1996-11-01), Reiss et al.
patent: 5607496 (1997-03-01), Brooks
"Reactions of Gaseous Elemental Mercury with Dilute Halogen Solutions" Aug. 25, 1996--M. H. Mendelsohn et al., 212th Nat'l Meeting American Chem. Soc., Orlando, FA.
Livengood, C.D. et al. "Investigation of Modified Speciation for Enhanced Control of Mercury" Advanced Coal-Based Power and Environmental Systems '97 Conference, Pittsburgh, PA Jul. 22-24, 1997.

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