PROBLEM TO BE SOLVED: To provide a novel, useful method and an apparatus for removing mercury from a flue gas produced during combustion of fossil fuel or solid waste.SOLUTION: The method and the apparatus use a scrubber for receiving an industrial gas containing oxidized mercury and retaining a scrubber solution for cleaning the industrial gas with an aqueous alkali reagent, and include the process of adding an aqueous sulfide species to the industrial gas in the scrubber and cleaning the industrial gas.

Title
Usage of sulfide-containing gas and liquid for removing mercury from flue gas
Application Number
2005-326252
Publication Number
2006-095527
Application Date
November 10, 2005
Publication Date
April 13, 2006
Inventor
Stanley J Vetch
Ralph T Berry
Downs William
Paul S Nolan
Assignee
Babcock &Amp Wilcox Co The
Mcdermott Technol
IPC
B01D 53/34
B01D 53/64