The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 2017
Filed:
Mar. 25, 2016
Great River Energy, Maple Grove, MN (US);
Jared D. Pozarnsky, Benedict, ND (US);
Joseph D. Flath, Garrison, ND (US);
Jeffrey A. Jacobchick, Bismark, ND (US);
Cory A. Koppang, Bismarck, ND (US);
Rodney N. Swanson, Washbum, ND (US);
Lyle K. Lelm, Turtle Lake, ND (US);
Mark D. Natwick, Bismarck, ND (US);
Morris L. Hummel, Coleharbor, ND (US);
Great River Energy, Maple Grove, MN (US);
Abstract
The present invention relates to coal-fired power plants and flue gas emissions and more specifically, to controlling gaseous mercury emissions in the flue gas between two or more coal fired electric generating units within a contiguous power plant site to achieve environmental regulation limits for mercury emissions. This is accomplished by continuously adjusting the application rates of mercury oxidant, which is added to a coal feed to oxidize elemental mercury for improved mercury capturability and aqueous mercury precipitant (liquid), which is added to a scrubber liquor of a wet Flue Gas Desulfurization (FGD) unit to precipitate out oxidized mercury into solid form for improved capture and disposal.