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

Patent · Tue May 02 00:00:00 EDT 2006

OSTI ID:1175726

Nolan, Paul S.; Downs, William; Bailey, Ralph T.; Vecci, Stanley J.

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: The Babcock & Wilcox Company, New Orleans, LA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FC22-94PC94251
• Assignee: The Babcock & Wilcox Company (New Orleans, LA)
• Patent Number(s): 7,037,474
• Application Number: 10/324,833
• OSTI ID: 1175726
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY