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US 2010/0247394 A1Published application
Process for promoting mercury retention in wet flue gas desulfurization systems
AssigneeALSTOM Technology Ltd
InventorDonald C. Borio
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Abstract
A system and method is proposed for removing mercury from a process gas stream containing mercury. The proposed invention provides for contacting an aqueous desulphurization liquor with a flue gas stream to capture mercury that may be contained in the flue gas stream. A promoter is mixed with the liquor to prevent oxidized mercury in the liquor from reducing into elemental mercury.
Claims20
A system for removing mercury from a flue gas stream, the system comprises:
- reaction vessel configured to receive a flue gas stream containing mercury;
- an aqueous liquor supply;
- liquid to gas mass transfer device disposed within the interior of the reaction vessel;
- and
- the liquid to gas mass transfer device is configured to contact the flue gas stream with the aqueous liquor supply.
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Dependencies are inferred from the claim text.