Process to reduce mercury emission

Furnaces – Process – Treating fuel constituent or combustion product

Reexamination Certificate

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Details

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.

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