Method and system for removing mercury from combustion gas

Details Method and system for removing mercury from combustion gas Method and system for removing mercury from combustion gas

2008-05-20

2008-05-20

Vanoy, Timothy C. (Department: 1793)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

C423SDIG018, C422S105000, C422S108000, C422S110000, C422S111000, C422S168000, C422S176000, C095S002000, C095S134000

Reexamination Certificate

active

11283555

ABSTRACT:
A method for continuously removing mercury from a supply of combustion gas is provided. The method includes adjusting a power input to an electrostatic precipitator to control a quantity of fly ash emitted from the electrostatic precipitator. A turbulent flow of combustion gas is produced to suspend particulate matter including the quantity of fly ash contained in the supply of combustion gas. A substantial portion of the mercury is absorbed within the particulate matter including the quantity of fly ash. The supply of combustion gas is filtered to remove the particulate matter from the mercury. A quantity of absorption sites available for absorbing mercury is controlled by monitoring an emission of fly ash from the electrostatic precipitator.

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