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

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.
Authors:
 [1] ;  [2] ;  [3] ;  [2]
  1. (North Canton, OH)
  2. (Alliance, OH)
  3. (Uniontown, OH)
Publication Date:
OSTI Identifier:
874976
Report Number(s):
US 6503470
DOE Contract Number:
FC22-94PC94251
Resource Type:
Patent
Research Org:
BABCOCK & WILCOX CO
Country of Publication:
United States
Language:
English
Subject:
sulfide-containing; liquors; removing; mercury; flue; gases; method; apparatus; reducing; removing; mercury; industrial; gases; flue; gas; produced; combustion; fossil; fuels; coal; adds; sulfide; flue; gas; passes; scrubber; ideally; source; sulfide; sulfidic; waste; water; kraft; caustic; liquor; kraft; carbonate; liquor; potassium; sulfide; sodium; sulfide; thioacetamide; sulfide; source; introduced; scrubbing; liquor; aqueous; sulfide; species; scrubber; wet; dry; scrubber; flue; gas; desulfurization; systems; flue gas; flue gas; flue gas; flue gas; fossil fuel; flue gases; industrial gases /423/