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    Methods and systems for operating low NOx combustion systems
    182.
    发明申请
    Methods and systems for operating low NOx combustion systems 有权
    运行低NOx燃烧系统的方法和系统

    公开(公告)号：US20060008757A1

    公开(公告)日：2006-01-12

    申请号：US10885267

    申请日：2004-07-06

    Applicant: Vladimir Zamansky ,  Vitali Lissianski ,  Boris Eiteneer

    Inventor： Vladimir Zamansky ,  Vitali Lissianski ,  Boris Eiteneer

    IPC: F27B9/12

    CPC classification number: F23C6/047 ,  F22B1/22 ,  F23C2201/101 ,  F23C2900/06041 ,  F23G7/07 ,  F23J2215/10 ,  F27B17/00

    Abstract: Methods and systems for reducing nitrogen oxides in combustion flue gas is provided. The method includes combusting a fuel in a main combustion zone such that a flow of combustion flue gas is generated wherein the combustion flue gas includes at least one nitrogen oxide species, establishing a fuel-rich zone, forming a plurality of reduced N-containing species in the fuel rich zone, injecting over-fire air into the combustion flue gas downstream of fuel rich zone, and controlling process parameters to provide conditions for the reduced N-containing species to react with the nitrogen oxides in the OFA zone to produce elemental nitrogen such that a concentration of nitrogen oxides is reduced.

    Abstract translation: 提供了减少燃烧烟气中氮氧化物的方法和系统。 该方法包括在主燃烧区燃烧燃料，使得产生燃烧烟气的流动，其中燃烧烟气包括至少一种氮氧化物种类，建立富燃料区，形成多个还原的含氮物质 在富燃区，向富燃区下游的燃烧烟气注入过火空气，并控制工艺参数，为还原的含氮物质与OFA区的氮氧化物反应生成元素氮 使得氮氧化物的浓度降低。

    Method for in-furnace reduction flue gas acidity
    183.
    发明申请
    Method for in-furnace reduction flue gas acidity 有权
    炉内还原烟气酸度的方法

    公开(公告)号：US20050181318A1

    公开(公告)日：2005-08-18

    申请号：US10797513

    申请日：2004-03-10

    Applicant: Brian Higgins

    Inventor： Brian Higgins

    IPC: F23C5/00 ,  F23M3/02

    CPC classification number: F23L9/04 ,  F23C6/047 ,  F23C2201/101 ,  F23C2201/20 ,  F23C2201/30 ,  F23J2215/20

    Abstract: A method for of reducing the acidity and lowering the acid dewpoint of flue gas, the method steps including partially combusting the fuel in a first stage to create a reducing environment; maintaining the reducing environment for a sufficient time period such that reducible acids are reduced to achieve a desirable acidity concentration in the flue gas; and combusting the remainder of the fuel and combustion intermediates in a second stage with oxidizing environment; thereby decreasing the acidity and lowering the acid dewpoint of the flue gas by reducing the acid concentration of the gas.

    Abstract translation: 一种降低烟气酸度和降低酸性露点的方法，所述方法步骤包括在第一阶段部分地燃烧燃料以产生还原环境; 保持还原环境足够的时间，使得可还原的酸被还原以达到烟道气中所需的酸度浓度; 并在具有氧化环境的第二阶段中燃烧剩余的燃料和燃烧中间体; 从而通过降低气体的酸浓度来降低烟气的酸度和降低酸性露点。

    Mixing process for increasing chemical reaction efficiency and reduction of byproducts
    185.
    发明申请
    Mixing process for increasing chemical reaction efficiency and reduction of byproducts 审中-公开
    用于提高化学反应效率和减少副产物的混合过程

    公开(公告)号：US20040185402A1

    公开(公告)日：2004-09-23

    申请号：US10459789

    申请日：2003-06-12

    Inventor： Goran Moberg

    IPC: F23M003/00

    CPC classification number: F23C6/045 ,  F23C5/32 ,  F23C2201/101 ,  F23J7/00 ,  F23L9/02

    Abstract: A system and method for increasing reaction and reactor efficiency, including the steps of providing a reactor with a plurality of reagent introduction or injection ducts, asymmetrically positioned in a tangentially reinforcing manner at spaced apart predetermined locations; injecting at least one reagent; wherein the velocity of the injected reagent(s) is such that the ratio of the reagent velocity to the reactor width is between about 2 secnull1 to about 150 secnull1; thereby increasing reaction and reactor efficiency and reducing the byproducts produced thereby, via mixing and rotation of the reaction space.

    Abstract translation: 一种用于增加反应和反应器效率的系统和方法，包括以下步骤：提供具有多个试剂引入或注入管道的反应器，在间隔开的预定位置处以切向加强的方式非对称地定位; 注射至少一种试剂; 其中注入的试剂的速度使得试剂速度与反应器宽度的比率在约2秒-1至约150秒-1之间; 从而通过反应空间的混合和旋转来增加反应和反应器的效率并减少由此产生的副产物。

    Minimization of NOx Emissions and carbon loss in solid fuel combustion
    189.
    发明申请
    Minimization of NOx Emissions and carbon loss in solid fuel combustion 有权
    最大限度地减少固体燃料燃烧中的NOx排放和碳损失

    公开(公告)号：US20020166484A1

    公开(公告)日：2002-11-14

    申请号：US09852913

    申请日：2001-05-11

    Inventor： Vladimir Zamansky ,  Vitali Victor Lissianski ,  Peter Martin Maly ,  Yuri Mikhailovloh Mospan

    IPC: F23B007/00 ,  F23J011/00 ,  F23J015/00

    CPC classification number: F23K1/04 ,  F23C6/047 ,  F23C9/003 ,  F23C2201/101 ,  F23C2202/20 ,  F23D1/00 ,  F23L9/04

    Abstract: This invention discloses the synergistic integration of solid fuel combustion, low NOx control technologies (such as Low NOx Burners, reburning and Advanced Reburning) with partial in-duct gasification of coal or other solid fuels. For partial gasification, the solid fuel can be transported and injected by recycled flue gas stream at 600-800null F. in the reburning zone or in the upper section of the main combustion zone of a boiler. This allows the fuel to be preheated and partially pyrolyzed and gasified in the duct and then injected into the boiler as a mixture of coal, gaseous products, and char. Gasification increases coal reactivity and results in lower carbon-in-ash levels. As an option, the gaseous and solid products can be split using a cyclone separator. Splitting the gasified fuel stream will allow the volatile matter to be used for reburning and the fixed carbon to be injected into the high-temperature main combustion zone.

    Abstract translation: 本发明公开了固体燃料燃烧，低NOx控制技术（如低NOx燃烧器，再燃烧和高级再燃烧）与煤或其他固体燃料的局部管内气化的协同一体化。 对于部分气化，固体燃料可以在再燃烧区域或锅炉主燃烧区上部的600-800°F的再循环烟气流输送和注入。 这允许燃料在管道中被预热和部分热解并气化，然后以煤，气体产物和焦炭的混合物注入锅炉。 气化提高煤的反应性，并导致较低的灰分含量。 作为选择，气体和固体产品可以使用旋风分离器分离。 分解气化燃料流将允许挥发性物质用于再燃烧，并将固体碳注入高温主燃烧区。

    Coal firing furnace and method of operating a coal-fired furnace
    190.
    发明授权
    Coal firing furnace and method of operating a coal-fired furnace 失效
    燃煤炉和操作燃煤炉的方法

    公开(公告)号：US6148744A

    公开(公告)日：2000-11-21

    申请号：US401357

    申请日：1999-09-21

    Applicant: Paul J. Chapman ,  John F. Drennen ,  Michael L. Kaplan ,  Majed A. Toqan

    Inventor： Paul J. Chapman ,  John F. Drennen ,  Michael L. Kaplan ,  Majed A. Toqan

    IPC: F23C99/00 ,  F23C5/32 ,  F23C6/04 ,  F23D1/00 ,  F23D1/02 ,  F23L9/04 ,  F23B7/00 ,  F23B5/00

    CPC classification number: F23L9/04 ,  F23C5/32 ,  F23C6/047 ,  F23D1/02 ,  F23C2201/101

    Abstract: A method of operating a pulverized coal-firing furnace so as to achieve no more than a predetermined variation in the instantaneous vertical velocities of the flow exiting a combustion chamber of the furnace is provided. The method includes, in one variation thereof, providing a series of lower compartments for introducing therethrough one of air, fuel, and air and fuel into the combustion chamber. At least one upper compartment is disposed above the topmost compartment of the series of lower compartments at a relative disposition to the topmost compartment in a spacing range between a contiguous disposition to a more spaced disposition which is no more than twice the average spacing between any given compartment and an adjacent compartment. Air is injected from the at least one upper compartment generally in opposition to the swirling fireball along a direction which is offset to the other side of the diagonal in a manner such that the injected air promotes the evolution of the swirling fireball into an upward flow in the top half of the furnace characterized by portions thereof flowing upward at differing vertical velocities with a maximum variation of no more than thirty percent between the instantaneous vertical velocities of the portions of the upward flow as measured across a horizontal plane in the top half of the furnace.

    Abstract translation: 提供了一种操作粉煤燃烧炉的方法，以便达到不超过离开燃烧室的流的瞬时垂直速度的预定变化。 该方法在其一个变型中包括提供一系列下部隔室，用于将空气，燃料和空气和燃料中的一个引入燃烧室。 至少一个上部隔间设置在一系列下部隔室的最上部隔间的上方，以相对配置到最上面隔间的间隔范围内的间隔范围内，间隔距离与间隔更宽的位置之间的距离不超过任何给定的间隔之间的平均间距的两倍 隔间和相邻的隔间。 空气从所述至少一个上隔室通常以与旋转的火球相反的方式从沿对角线的另一侧的方向喷射，使得喷射的空气促进旋转火球向上流动的方式 炉的上半部分，其特征在于其部分以不同的垂直速度向上流动，在向上流动的部分的瞬时垂直速度之间的最大变化不超过百分之三十，最大变化在跨越上半部分的上半部分的水平面上测量 炉。

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