Furnaces – Process – Treating fuel constituent or combustion product
Reexamination Certificate
2005-03-08
2005-03-08
Rinehart, Kenneth (Department: 3749)
Furnaces
Process
Treating fuel constituent or combustion product
C423S210000
Reexamination Certificate
active
06863005
ABSTRACT:
In a method to decrease emission of mercury, a factor is selected to control a combustion process to generate a flue gas comprising fly ash with enhanced unburned carbon; the combustion process is controlled according to a factor selected from reburning fuel, flue gas temperature, OFA injection, coal particle size, LNB flow, LNB design, combustion zone air, stoichiometric ratio of fuel, fuel/air mixing in a primary combustion zone and fuel/air mixing in a secondary combustion zone to produce the flue gas comprising fly ash with enhanced unburned carbon and to vaporize mercury; and the flue gas is allowed to cool to collect fly ash with enhanced unburned carbon with absorbed mercury. A system to decrease emission of mercury; comprises a combustion zone that is controlled to generate a flue gas comprising fly ash with enhanced unburned carbon and that produces vaporized mercury; and a post combustion zone to cool the flue gas to collect fly ash with enhanced unburned carbon with absorbed mercury.
REFERENCES:
patent: 4977837 (1990-12-01), Roos et al.
patent: 5002741 (1991-03-01), Hooper
patent: 5484476 (1996-01-01), Boyd
patent: 5512257 (1996-04-01), Frey
patent: 5546874 (1996-08-01), Breen et al.
patent: 5555821 (1996-09-01), Martinez
patent: 5672323 (1997-09-01), Bhat et al.
patent: 5706645 (1998-01-01), Mollot et al.
patent: 5787823 (1998-08-01), Knowles
patent: 5849075 (1998-12-01), Hopkins et al.
patent: 5868084 (1999-02-01), Bachik
patent: 5887724 (1999-03-01), Weyand et al.
patent: 5990374 (1999-11-01), Vicard et al.
patent: 6024301 (2000-02-01), Hurley et al.
patent: 6027551 (2000-02-01), Hwang et al.
patent: 6145449 (2000-11-01), Kaneko et al.
patent: 6155965 (2000-12-01), Santen et al.
patent: 6202573 (2001-03-01), Bachik
patent: 6280695 (2001-08-01), Lissianski et al.
patent: 6439138 (2002-08-01), Teller et al.
patent: 6521021 (2003-02-01), Pennline et al.
Booth Charles M.
Lanier William Steven
Lissianski Vitali V.
Maly Peter M.
Seeker William Randall
Cusick Ernest G.
Freedman Philip D.
Rinehart Kenneth
LandOfFree
Process to reduce mercury emission does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process to reduce mercury emission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process to reduce mercury emission will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3429037