Methods of controlling mercury emission

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United States of America Patent

PATENT NO 8632742
APP PUB NO 20130180923A1
SERIAL NO

13657484

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Abstract

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Disclosed are methods for controlling, mercury emissions, and more particularly, to methods for controlling mercury re-emissions from a wet flue gas desulfurizer used in a combustion process. A method of controlling mercury re-emission from a combustion process includes measuring either mercury concentration, oxidation-reduction, potential (ORP), and/or sulfide concentration within a scrubber liquor of a wet flue gas desulpherizer (wFGD); correlating the mercury concentration, ORP, and /or sulfide concentration with an amount of mercury re-emission additive required in the scrubber liquor to reduce and/or prevent mercury re-emission to a selected level; and adjusting the rate of addition of mercury re-emission additive into the scrubber liquor to attain the selected level of mercury re-emission.

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Patent Owner(s)

  • ECOLAB USA INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Carlson, Wayne Batavia, US 4 48
Dorner, Robert W Naperville, US 5 78
Keiser, Bruce A Plainfield, US 50 499
Meier, John V Chicago, US 6 23
Mlambo, Darlington Naperville, US 8 22
Shah, Jitendra Naperville, US 24 255
Stiles, Rebecca L Naperville, US 6 22
Yuan, Jianwei Aurora, US 21 183

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