Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture
Reexamination Certificate
2007-03-26
2008-08-19
Vanoy, Timothy C (Department: 1793)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
C423S594180, C431S002000
Reexamination Certificate
active
07413719
ABSTRACT:
The invention can be summarized as follows. There is provided a method for oxidizing elemental mercury in a combustion process comprising, adding a composition comprising an aluminum silicate to a combustion chamber, boiler or kiln downstream from the burner region combustion zone. There is further provided a method for reducing the emission of one or more heavy metals in a combustion process by adding a composition comprising an aluminum silicate to a combustion chamber downstream from the burner region combustion zone. There is also provided a composition comprising an aluminum silicate that may be employed to oxidize elemental mercury generated in a combustion process. The composition also may be employed to reduce the emission of one or more heavy metals generated in a combustion process.
REFERENCES:
patent: 5607496 (1997-03-01), Brooks
patent: 5695726 (1997-12-01), Lerner
patent: 6284208 (2001-09-01), Thomassen
patent: 7048781 (2006-05-01), Lovell
patent: 2003/0170159 (2003-09-01), Honjo et al.
patent: 2007/0122327 (2007-05-01), Yang et al.
patent: 2 438 867 (2002-08-01), None
patent: 2 477 635 (2003-09-01), None
Brian K. Gullete et al., “Reduction of Coal-Based Metal Emissions by Furnace Sorbent Injection”, Energy & Fuels, vol. 8, pp. 1068-1076 (1994).
D. M. Considine, Van Nostrand's Scientific Encyclopedia, Fifth Edition, pp. 208, Van Nostrand Reinhold Company.
Jongsoo Jurng et al., “Mercury Removal From Incineration Flue Gas By Organic And Inorganic Adsorbents”, Chemosphere, vol. 47, pp. 907-913 (2002).
R. Jadhav et al., “Gas Phase Trace Metal Capture Using Sorbents”, Seventeenth Annual International Pittsburgh Coal Conference Proceedings, pp. 1-11 (2000).
S. Behrooz Ghorishi et al., “Mercury Speciation in Combustion Systems: Studies with Simulated Flue Gases and Model Fly Ashes”, pp. 1-19, U.S. Environmental Protection Agency, National Risk Management Research laboratory, Research Triangle Park.
S.Y. Shiao, “Development Of New Sorbents To Remove Mercury And Selenium From Flue Gas”, Ohio Coal Research Consortium, Final Report, pp. 1-21 (1195).
Vanoy Timothy C
Winston & Strawn LLP
LandOfFree
Composition and method for oxidizing mercury in combustion... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Composition and method for oxidizing mercury in combustion..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composition and method for oxidizing mercury in combustion... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4019262