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    • 1. 发明授权
    • Process to reduce mercury emission
    • 减少汞排放的过程
    • US06863005B2
    • 2005-03-08
    • US10724251
    • 2003-12-01
    • William Steven LanierCharles M. BoothVitali V. LissianskiVladimir M. ZamanskyPeter M. MalyWilliam Randall Seeker
    • William Steven LanierCharles M. BoothVitali V. LissianskiVladimir M. ZamanskyPeter M. MalyWilliam Randall Seeker
    • B01D53/64F23J15/00
    • B01D53/64
    • 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.
    • 在减少汞的排放的方法中,选择一个因素来控制燃烧过程以产生包含具有增强的未燃烧碳的飞灰的烟道气; 燃烧过程根据燃料重新燃烧,烟气温度,OFA注入,煤粒度,LNB流量,LNB设计,燃烧区空气,燃料的化学计量比,主燃烧区中的燃料/空气混合,以及 在二次燃烧区域中的燃料/空气混合以产生包含具有增强的未燃烧碳的飞灰和蒸发汞的烟道气; 并且允许烟道气冷却以收集具有吸收的汞的增强的未燃碳的飞灰。 减少汞排放的制度; 包括燃烧区,其被控制以产生包含具有增强的未燃烧碳的飞灰和产生汽化的汞的烟道气; 和一个后燃烧区域,用于冷却烟气以收集具有吸收的汞的增强的未燃烧碳的飞灰。
    • 5. 发明授权
    • Method of reducing NOx in a combustion flue gas
    • 减少燃烧烟气中的NOx的方法
    • US06280695B1
    • 2001-08-28
    • US09612753
    • 2000-07-10
    • Vitali V. LissianskiVladimir M. ZamanskyRichard K. LyonRoy Payne
    • Vitali V. LissianskiVladimir M. ZamanskyRichard K. LyonRoy Payne
    • B01J800
    • B01D53/56F23J7/00F23J2215/10F23J2219/20
    • Methods are provided for decreasing the amount of nitrogen oxides released to the atmosphere as a component of combustion emissions. The methods are carried out by forming a combustion flue gas in a combustion zone, the combustion flue gas including nitrogen oxides, injecting overfire air and droplets of a solution or a powder of a selective reducing agent into a burnout zone, and contacting the combustion flue gas with the overfire air and the selective reducing agent in the burnout zone to thereby decrease the concentration of nitrogen oxides therein. The selective reducing agent is provided in an aqueous solution or powder which is injected into the overfire air in optimized droplet or particle form prior to or concurrently with injection of the overfire air into the burnout zone.
    • 提供了用于减少作为燃烧排放物的组分释放到大气中的氮氧化物的量的方法。 所述方法通过在燃烧区中形成燃烧烟道气,所述燃烧烟道气包括氮氧化物,将过量空气和溶液的液滴或选择性还原剂的粉末喷射到燃烧区域中,并使燃烧烟道接触 在燃烧区域中具有过量空气和选择性还原剂的气体,从而降低其中的氮氧化物的浓度。 选择性还原剂提供在水溶液或粉末中,其在喷射过度空气进入烧尽区之前或同时喷射到最终的液滴或颗粒形式的过火空气中。