Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture
Reexamination Certificate
2006-05-02
2006-05-02
Silverman, Stanley S. (Department: 1754)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Reexamination Certificate
active
07037474
ABSTRACT:
A method and apparatus for reducing and removing mercury in industrial gases, such as a flue gas, produced by the combustion of fossil fuels, such as coal, adds sulfide ions to the flue gas as it passes through a scrubber. Ideally, the source of these sulfide ions may include at least one of: sulfidic waste water, kraft caustic liquor, kraft carbonate liquor, potassium sulfide, sodium sulfide, and thioacetamide. The sulfide ion source is introduced into the scrubbing liquor as an aqueous sulfide species. The scrubber may be either a wet or dry scrubber for flue gas desulfurization systems.
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English translation of EP 0 709 128 A3, published Mar. 1997.
English translation of EP 0 709 128 A2, published May 1996.
Bailey Ralph T.
Downs William
Nolan Paul S.
Vecci Stanley J.
Baraona Robert C.
Hertzog Ardith E
Marich Eric
McDermott Technology Inc.
Silverman Stanley S.
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