Furnaces – Process – Treating fuel constituent or combustion product
Reexamination Certificate
2006-01-03
2006-01-03
Rinehart, Kenneth (Department: 3749)
Furnaces
Process
Treating fuel constituent or combustion product
C110S347000
Reexamination Certificate
active
06981456
ABSTRACT:
A method to reduce mercury in gas emissions from the combustion of coal is disclosed. Mercury emissions can be reduced by staging combustion process and/or reducing boiler excess oxygen. Fly ash formed under combustion staging conditions is more reactive towards mercury than fly ash formed under typical combustion conditions. Reducing boiler excess oxygen can also improve ability of fly ash to adsorb mercury.
REFERENCES:
patent: 4196173 (1980-04-01), deJong et al.
patent: 4233274 (1980-11-01), Allgulin
patent: 4273747 (1981-06-01), Rasmussen
patent: 4814152 (1989-03-01), Yan
patent: 4843102 (1989-06-01), Horton
patent: 5141724 (1992-08-01), Audeh et al.
patent: 5315939 (1994-05-01), Rini et al.
patent: 5409522 (1995-04-01), Durham et al.
patent: 5413477 (1995-05-01), Moreland
patent: 5507238 (1996-04-01), Knowles
patent: 5572938 (1996-11-01), Leger
patent: 5695726 (1997-12-01), Lerner
patent: 5787823 (1998-08-01), Knowles
patent: 6027551 (2000-02-01), Hwang et al.
patent: 6206685 (2001-03-01), Zamansky et al.
patent: 6280695 (2001-08-01), Lissianski et al.
patent: 6451094 (2002-09-01), Chang et al.
patent: 6471506 (2002-10-01), Zamansky et al.
patent: 6521021 (2003-02-01), Pennline et al.
patent: 6558454 (2003-05-01), Chang et al.
patent: 6595147 (2003-07-01), Teller et al.
patent: 6604474 (2003-08-01), Zamansky et al.
patent: 6719828 (2004-04-01), Lovell et al.
patent: 2001/0041157 (2001-11-01), Spokoyny
patent: 2002/0029690 (2002-03-01), Ridgeway et al.
patent: 2002/0095866 (2002-07-01), Hassett
patent: 2002/0102189 (2002-08-01), Madden et al.
patent: 2002/0166484 (2002-11-01), Zamansky et al.
patent: 2002/0170431 (2002-11-01), Chang et al.
patent: 2003/0005634 (2003-01-01), Calderon et al.
patent: 2003/0009932 (2003-01-01), Kobayashi et al.
patent: 2003/0079606 (2003-05-01), Katz
patent: 2003/0091490 (2003-05-01), Nolan et al.
patent: 2003/0091948 (2003-05-01), Bool, III et al.
patent: 2003/0099912 (2003-05-01), Kobayashi et al.
patent: 2003/0099913 (2003-05-01), Kobayashi et al.
patent: 2003/0104328 (2003-06-01), Kobayashi et al.
patent: 2003/0104937 (2003-06-01), Sinha
patent: 2003/0108470 (2003-06-01), Spencer et al.
patent: 2003/0108833 (2003-06-01), Kobayashi et al.
patent: 2003/0110994 (2003-06-01), Lissianski et al.
patent: 2003/0143128 (2003-07-01), Lanier et al.
patent: 2003/0147793 (2003-08-01), Breen et al.
patent: 2003/0154858 (2003-08-01), Kleut et al.
patent: 2003/0185718 (2003-10-01), Sellakumar
patent: 2004/0011057 (2004-01-01), Huber
“Kinetic Models For Predicting the Behavior Of Mercury In Coal-Fired Power Plants”, C. Senior, et al., ACERC Annual Conference, Feb. 19-20, 2003, pp. 1-22.
“Evaluating The Effects of Low-NOx Retrofits on Carbon In Ash Levels1”, K.A. Davis, et al. Presented at the Mega Symposium: EPRI-DOE-EPA Combined Utility Air Pollutant Control Symposium, Atlanta, GA, Aug. 1999, pp. 1-15.
“Behavior of Mercury In Air Pollution Control Devices on Coal-Fired Utility Boilers1”Constance L. Senior, Prepared For Power Production in the 21stCentury: Impacts of Fuel Quality and Operations, Engineering Foundation Conference, Snowbird, UT, Oct. 28-Nov. 2, 2001, pp. 1-17.
“Loss On Ignition In Coal Combustion Simulations”, Stefan P. Domino et al., pp. 1-49 (1999).
Reaction Engineering International brochure “Furnace Performance”, Reaction Engineering International, printed from REI website on Aug. 22, 2003, pp. 1-2.
“Comparison of Photoacoustic Methods To Loss-On-Ignition and Foam Index Tests In Fly Ash Evaluations”, Robert Novack, et al., pp. 1-2 (1997).
“Combustion Optimization Using MPV Systems”, Mark Khesin, et al., Pittsburgh Coal Conference, Sep. 2000, pp. 1-4.
“Reburn Systems”, GE Power Systems, Air Quality Systems & Services, pp. 1-3, GEA-13207 (2001).
“FlamemastEER™ Low NOxBurners”, GEA-13132, p. 1, printed Dec. 2003.
“NOxControl for Gas Turbines”, GE Power Systems, pp. 1-2, printed Dec. 17, 2003.
“NOxControl for Boilers”, GE Power Systems, pp. 1-2, printed Dec. 17, 2003.
“Coalogic™”, GE Power Systems, pp. 1-2, printed Dec. 17, 2003.
“Coal Balancing & Blending”, GE Power Systems, pp. 1-2, printed Dec. 17, 2003.
“NOxReduction”, Hamon, pp. 1-2, Dec. 8, 2003.
“Selective Catalytic Reduction (SCR)”, Hamon, pp. 1-2, printed Dec. 8, 2003.
“Selective Non-Catalytic Reduction (SNCR)”, Hamon, pp. 1-3, printed Dec. 8, 2003.
“SCR SNCR Hybrid System”, Hamon, pp. 1-2, Dec. 8, 2003.
“Evaluation of the Effect of SCR NOx Control Technology on Mercury Speciation”, Feeley, III et al., Mar. 2003, pp. 1-11.
John H. Pavlish et al., “Status Review Of Mercury Control Options For Coal-Fired Power Plants”, pp. 89-165, Fuel Processing Technology 82 (2003).
Thomas D. Brown et al., “Mercury Measurement And Its Control: What We Know, Have Learned, and Need To Further Investigate”, Journal of the Air & Waste Management Association, pp. 628-640, vol. 49, Jun. 1999.
Blair A. Folsom et al., “Combustion Modification—An Economic Alternative for Boiler NOxControl”, GE Power Systems, GER-4192, pp. 1-8, Apr. 2001.
R. Sehgal et al., “Intelligent Optimization of Coal Burning to Meet Demanding Power Loads, Emission Requirements, and Cost Objectives”, GE Power Systems, GER-4198, pp. 1-14, Oct. 2000.
The Washington Post, “Limiting Mercury Pollution Is Focus of Hot Debate”, pp. A3, Mar. 15, 2004.
Ho Loc
Lissianski Vitali Victor
Maly Peter Martin
Payne Roy
Seeker William Randall
General Electric Company
Nixon & Vanderhye P.C.
Rinehart Kenneth
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