公开(公告)号：US07374736B2

公开(公告)日：2008-05-20

申请号：US10705820

申请日：2003-11-13

Applicant: Roy Payne ,  Wei Zhou ,  Vitali Victor Lissianski ,  Vladimir M. Zamansky ,  Larry William Swanson

Inventor： Roy Payne ,  Wei Zhou ,  Vitali Victor Lissianski ,  Vladimir M. Zamansky ,  Larry William Swanson

IPC: B01D53/56

CPC classification number: F23D1/00 ,  B01D53/56 ,  B01D53/565 ,  F23C6/047 ,  F23C2201/101 ,  F23J7/00 ,  F23J2215/101 ,  F23L9/04

Abstract: A method of decreasing the concentration of nitrogen oxides in a combustion flue gas in which a nitrogen reducing agent is introduced together with the overfire air to mixes with the products of primary combustion along with the overfire air. The nitrogen agent reduced NOx as it passes through the temperature regime that is optimum for the NOx reduction as overfire air and flue gas mix. The transition from low to high temperature effectively eliminates ammonia slip. Additionally, the nitrogen agent may be mixed with the overfire air stream in such a manner that it is optimally shielded from early mixing with the products of primary combustion, where a portion of the overfire air reacts initially with any residual carbon monoxide (CO) that would otherwise interfere with the NOx reduction chemistry.

Abstract translation: 一种降低燃烧烟道气中的氮氧化物浓度的方法，其中将氮还原剂与超燃空气一起引入，并与一次燃烧产物一起与过火空气混合。 当氮气通过最适于NOx还原的温度状态时，氮气还原NOx，作为过热空气和烟气组合。 从低温到高温的转变有效地消除了氨的滑移。 另外，氮气剂可以与过火空气流混合，使得其被最佳地屏蔽以免与初级燃烧产物的早期混合，其中一部分过热空气最初与任何残留的一氧化碳（CO）反应， 否则会干扰NOx还原化学。

公开(公告)号：US20070231231A1

公开(公告)日：2007-10-04

申请号：US11628009

申请日：2005-06-02

Applicant: Edgardo Coda Zabetta ,  Mikko Hupa ,  Kari Saviharju

Inventor： Edgardo Coda Zabetta ,  Mikko Hupa ,  Kari Saviharju

IPC: B01D53/56

CPC classification number: D21C11/122 ,  B01D53/56 ,  F23C6/045 ,  F23C2201/101 ,  F23C2900/06041 ,  F23G7/04 ,  F23J7/00

Abstract: The present invention relates to a method for reducing nitrogen oxide emissions in combustion. Fuel is combusted in a first zone, whereby nitrogen oxides are generated. Supplementary fuel is fed in another zone under reducing conditions. At the same time, the temperature is adjusted so that nitrogen oxides convert essentially to hydrogen cyanide. Finally, air is fed in for finalizing the combustion and converting the hydrogen cyanide into nitrogen.

Abstract translation: 本发明涉及一种减少燃烧中氮氧化物排放的方法。 燃料在第一区域燃烧，由此产生氮氧化物。 补充燃料在还原条件下进入另一个区域。 同时，调节温度使氮氧化物基本上转化为氰化氢。 最后，送入空气以完成燃烧并将氰化氢转化成氮气。

公开(公告)号：US07225746B2

公开(公告)日：2007-06-05

申请号：US10436164

申请日：2003-05-13

Applicant: Hisashi Kobayashi ,  Lawrence E. Bool, III

Inventor： Hisashi Kobayashi ,  Lawrence E. Bool, III

IPC: F23J15/00 ,  F23L9/00

CPC classification number: F23D1/02 ,  F23C5/32 ,  F23C6/045 ,  F23C2201/101 ,  F23C2201/20 ,  F23C2900/07021 ,  F23C2900/99004 ,  F23D2900/00006 ,  F23L7/007 ,  Y02E20/344

Abstract: Combustion of hydrocarbon liquids and solids is achieved with less formation of NOx by feeding a small amount of oxygen into the fuel stream.

公开(公告)号：US20060115779A1

公开(公告)日：2006-06-01

申请号：US11265198

申请日：2005-11-03

Applicant: Kenji Yamamoto ,  Hirofumi Okazaki ,  Masayuki Taniguchi ,  Kazumi Yasuda ,  Kenji Kiyama ,  Takanori Yano ,  Akira Baba ,  Kenichi Ochi ,  Hisayuki Orita ,  Akihito Orii ,  Yuki Kamikawa ,  Kouji Kuramashi

Inventor： Kenji Yamamoto ,  Hirofumi Okazaki ,  Masayuki Taniguchi ,  Kazumi Yasuda ,  Kenji Kiyama ,  Takanori Yano ,  Akira Baba ,  Kenichi Ochi ,  Hisayuki Orita ,  Akihito Orii ,  Yuki Kamikawa ,  Kouji Kuramashi

IPC: F23C9/00

CPC classification number: F23L9/04 ,  F23C7/008 ,  F23C2201/101 ,  F23D1/00 ,  F23L7/00 ,  F23L2900/07008 ,  F23L2900/07009

Abstract: A overfiring air port of the present invention is to supply an incomplete combustion region with air making up for combustion-shortage, in a furnace in which the incomplete combustion region less than stoichiometric ratio is formed by a burner. Furthermore, the airport is characterized by comprising: a nozzle mechanism for injecting air including an axial velocity component of an air flow and a radial velocity component directed to a center line of the airport; and a control mechanism for controlling a ratio of these velocity components.

Abstract translation: 本发明的过燃空气端口是在燃烧器形成不完全燃烧区域小于化学计量比的炉子中，供给不完全燃烧区域的空气来弥补燃烧不足。 此外，机场的特征在于包括：用于喷射空气的喷嘴机构，其包括空气流的轴向速度分量和指向机场的中心线的径向速度分量; 以及用于控制这些速度分量的比率的控制机构。

公开(公告)号：US07004089B2

公开(公告)日：2006-02-28

申请号：US10476684

申请日：2001-05-11

Applicant: Pauli Dernjatin ,  Kati Savolainen ,  Kari Jääskeläinen ,  Marko Fabritius

Inventor： Pauli Dernjatin ,  Kati Savolainen ,  Kari Jääskeläinen ,  Marko Fabritius

IPC: F23G5/30 ,  F23D1/00

CPC classification number: F23C6/047 ,  F23C10/002 ,  F23C2201/101 ,  F23C2201/301

Abstract: The invention relates to a combined fluidized bed and pulverized coal combustion method and system. In the method, fluidizing air (4) is injected into a fluidized bed (2) situated in the bottom portion of the combustion chamber (3). Into the combustion chamber, to above the fluidized bed (2), is fed a mixture of pulverized coal and a carrier gas from a second set of fuel feed means (6) at a mass flow rate which is higher or at least substantially equal to the upper ignition limit of the mixture, and the mixture of the pulverized coal and the carrier gas at least by the fluidizing air (4), and at least a fraction of the fuel fed via the second set of fuel feed means (6) is combusted above the fluidized bed (2).

Abstract translation: 本发明涉及一种组合流化床和粉煤燃烧方法及系统。 在该方法中，将流化空气（4）注入位于燃烧室（3）底部的流化床（2）中。 在燃烧室内到达流化床（2）的上方，以来自第二组燃料供给装置（6）的粉煤和载气的混合物以更高或至少基本上等于 至少通过流化空气（4），混合物的上限点火极限和粉煤与载体气体的混合物，以及经由第二组燃料供给装置（6）供给的燃料的至少一部分是 在流化床（2）上方燃烧。

公开(公告)号：US20060021554A1

公开(公告)日：2006-02-02

申请号：US11237949

申请日：2005-09-29

Applicant: Vitali Lissianski ,  Peter Maly ,  William Seeker ,  Roy Payne ,  Vladimir Zamansky ,  Loc Ho

Inventor： Vitali Lissianski ,  Peter Maly ,  William Seeker ,  Roy Payne ,  Vladimir Zamansky ,  Loc Ho

IPC: F23J15/00 ,  B01D53/02

CPC classification number: B01D53/64 ,  B01D53/02 ,  B01D53/10 ,  B01D2253/102 ,  B01D2257/602 ,  F23C6/045 ,  F23C2201/101 ,  F23C2201/30 ,  F23J15/006 ,  F23J15/022 ,  F23J2215/60 ,  F23J2219/40

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.

公开(公告)号：US20050279263A1

公开(公告)日：2005-12-22

申请号：US11047000

申请日：2005-01-31

Applicant: Lawrence Berg ,  Edmund Schindler ,  Nigel Garrad ,  John Halloran ,  Robert Collette

Inventor： Lawrence Berg ,  Edmund Schindler ,  Nigel Garrad ,  John Halloran ,  Robert Collette

IPC: G06F1/16 ,  G06F1/18 ,  G06F3/033 ,  G06F17/30 ,  H04L12/28 ,  H04L12/56 ,  H04L29/12 ,  F23B5/00 ,  F23G7/06

CPC classification number: G06F17/30047 ,  F23C5/32 ,  F23C6/045 ,  F23C2201/101 ,  F23C2201/102 ,  G06F1/1616 ,  G06F1/1626 ,  G06F1/1632 ,  G06F1/1656 ,  G06F1/181 ,  G06F3/03545 ,  G06F17/30879 ,  H04L29/12009 ,  H04L61/00 ,  H04W88/02

Abstract: A tangential fired boiler includes a circumferential wall defining a combustion zone, the circumferential wall being generally rectangular when viewed along a generally horizontal cross-section. A fireball is disposed within the combustion zone, the fireball rotating about an imaginary axis when viewed along a generally horizontal cross-section. A corner member is disposed proximate to at least one corner of the combustion zone, with a plurality of fuel inlets disposed along the corner member. The plurality of fuel inlets inject fuel into the combustion zone, and at least some of the plurality of fuel inlets inject fuel in a direction which is angled with respect to a normal of the corner member and upstream relative to a direction of rotation of the fireball.

Abstract translation: 切向燃烧的锅炉包括限定燃烧区的周向壁，当沿着大致水平的横截面观察时，周向壁大致为矩形。 火球设置在燃烧区内，火球围绕假想轴线旋转，沿大致水平的横截面观察。 角部件靠近燃烧区域的至少一个角部设置，多个燃料入口沿着角部件设置。 多个燃料入口将燃料喷射到燃烧区域中，并且多个燃料入口中的至少一些燃料入口沿相对于拐角构件的法线成角度且相对于火球的旋转方向的上游的方向喷射燃料 。

公开(公告)号：US20050257721A1

公开(公告)日：2005-11-24

申请号：US11191958

申请日：2005-07-29

Applicant: Hirofumi Okazaki ,  Masayuki Taniguchi ,  Kenji Yamamoto ,  Kenji Kiyama

Inventor： Hirofumi Okazaki ,  Masayuki Taniguchi ,  Kenji Yamamoto ,  Kenji Kiyama

IPC: F23C99/00 ,  F23C6/04 ,  F23C7/00 ,  F23C9/00 ,  F23D1/00 ,  F23L9/04 ,  F23M3/04 ,  F23B5/02

CPC classification number: F23D1/00 ,  F23C6/045 ,  F23C7/004 ,  F23C9/00 ,  F23C2201/101 ,  F23C2202/30 ,  F23L9/04

Abstract: There is disclosed a solid fuel boiler including: a furnace including a plurality of solid fuel burners and a furnace wall to perform horizontal firing; a duct through which a part of combustion exhaust gas recirculates to a furnace from a downstream side of the furnace; heat exchanger tubes disposed on a furnace wall and in a heat recovery area of the furnace; and recirculation gas ports via which the recirculation gas is supplied to a reducing flame portion of the burners in the furnace without combining the gas with a flame in the vicinity of an outlet of the burner, so that molten ash is prevented from firmly sticking to the furnace wall and thermal NOx, fuel NOx, and unburned carbon.

公开(公告)号：US20040253161A1

公开(公告)日：2004-12-16

申请号：US10742260

申请日：2003-12-20

Inventor： Brian S. Higgins

IPC: B01D053/56

CPC classification number: B01D53/56 ,  B01D53/505 ,  B01D2251/2067 ,  B01D2251/40 ,  F23C5/32 ,  F23C6/045 ,  F23C2201/101 ,  F23J7/00 ,  F23L9/02

Abstract: A method of extending the droplet half-life of water droplets in a combustion furnace by increasing the relative humidity in the droplets' environment; thereby reducing the evaporation rate of the water from the droplet and increasing the half-life of the droplets in the droplets' environment.

Abstract translation: 通过增加液滴环境中的相对湿度来延长燃烧炉中水滴的液滴半衰期的方法; 从而降低水从液滴中的蒸发速率，并增加液滴在液滴环境中的半衰期。

公开(公告)号：US20040187751A1

公开(公告)日：2004-09-30

申请号：US10744101

申请日：2003-12-24

Inventor： Hirofumi Okazaki ,  Masayuki Taniguchi ,  Kenji Yamamoto ,  Kenji Kiyama

IPC: F23D001/00

CPC classification number: F23D1/00 ,  F23C6/045 ,  F23C7/004 ,  F23C9/00 ,  F23C2201/101 ,  F23C2202/30 ,  F23L9/04

Abstract: There is disclosed a solid fuel boiler including: a furnace including a plurality of solid fuel burners and a furnace wall to perform horizontal firing; a duct through which a part of combustion exhaust gas recirculates to a furnace from a downstream side of the furnace; heat exchanger tubes disposed on a furnace wall and in a heat recovery area of the furnace; and recirculation gas ports via which the recirculation gas is supplied to a reducing flame portion of the burners in the furnace without combining the gas with a flame in the vicinity of an outlet of the burner, so that molten ash is prevented from firmly sticking to the furnace wall and thermal NOx, fuel NOx, and unburned carbon.

Abstract translation: 公开了一种固体燃料锅炉，其包括：包括多个固体燃料燃烧器的炉和进行水平燃烧的炉壁; 燃烧废气的一部分从炉的下游侧再循环到炉中的管道; 设置在炉壁和炉的热回收区域中的热交换器管; 以及再循环气体端口，通过该再循环气体将再循环气体供应到炉内的燃烧器的还原火焰部分，而不将气体与燃烧器出口附近的火焰组合，使得熔融灰被防止牢固地粘在 炉壁和热NOx，燃料NOx和未燃碳。