Use of sulfide-containing liquors for removing mercury from flue gases

Patent · Wed Jan 01 00:00:00 EST 2003

OSTI ID:874976

Nolan, Paul S ^[1]; Downs, William ^[2]; Bailey, Ralph T ^[3]; Vecci, Stanley J ^[2]

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1. North Canton, OH
2. Alliance, OH
3. Uniontown, OH

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.

• Research Organization: BABCOCK & WILCOX CO
• DOE Contract Number: FC22-94PC94251
• Assignee: The Babcock & Wilcox Company (New Orleans, LA); McDermott Technology, Inc. (New Orleans, LA)
• Patent Number(s): US 6503470
• OSTI ID: 874976
• Country of Publication: United States
• Language: English

Related Subjects

sulfide-containing
liquors
removing
mercury
flue
gases
method
apparatus
reducing
industrial
gas
produced
combustion
fossil
fuels
coal
adds
sulfide
passes
scrubber
ideally
source
sulfidic
waste
water
kraft
caustic
liquor
carbonate
potassium
sodium
thioacetamide
introduced
scrubbing
aqueous
species
wet
dry
desulfurization
systems
flue gas
fossil fuel
flue gases
industrial gases
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