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US 7,544,339 B2Granted
Method and apparatus for removing mercury from combustion exhaust gas
AssigneeGeneral Electric Company
InventorsVitali Victor Lissianski, Peter Martin Maly, William Randall Seeker, Robert Warren Taylor
Life of this patent
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Abstract
A method for reducing mercury emissions in combustion flue gas is provided. The method includes combusting coal such that a flue gas flow is created. The flue gas flow includes at least mercury and carbon-containing fly ash. The method further includes cooling the flue gas flow within a duct and creating turbulence in the flue gas flow. The mercury is removed from the flue gas flow.
Claims19
A method for reducing mercury emissions in combustion flue gas, said method comprising:
- combusting coal to create a flue gas flow that includes at least mercury and carbon-containing fly ash;
- cooling the flue gas flow within a duct;
- channeling the flue gas flow past a vane assembly to create turbulence in the flue gas flow, wherein the vane assembly extends at least partially across a flue gas flow path;
- and
- removing mercury from the flue gas flow.
2 more elements
A coal-fired power plant comprising:
- a coal combustion zone configured to generate a flue gas flow that includes at least carbon-containing fly ash and mercury;
- a duct coupled to said combustion zone for channeling said flue gas flow therethrough;
- a particulate control device coupled to said duct, said particulate control device is configured to collect mercury from said flue gas flow;
- and
- a vane assembly coupled within said duct, said vane assembly extends at least partially through said flue gas flow.
2 more elements
A pollutant reduction system comprising:
- a duct for channeling a gas flow therethrough;
- a particulate control device coupled to said duct, said particulate control device is configured to collect mercury from said gas flow;
- and
- a vane assembly coupled within said duct, said vane assembly extends at least partially across said gas flow.
1 more element
Dependencies are inferred from the claim text.