公开(公告)号：US08052950B2

公开(公告)日：2011-11-08

申请号：US13030599

申请日：2011-02-18

申请人： Larry William Swanson ,  Wei Zhou ,  David Kelly Moyeda ,  Roy Payne

发明人： Larry William Swanson ,  Wei Zhou ,  David Kelly Moyeda ,  Roy Payne

IPC分类号： B01D53/56

CPC分类号： B01D53/56 ,  B01D53/62 ,  B01D53/79 ,  F23C2201/101 ,  F23C2201/30 ,  F23J7/00 ,  F23J2215/10 ,  Y02A50/2341

摘要： A method of decreasing a concentration of nitrogen oxides in a combustion gas flowing through a vessel including: generating a flue gas in a combustion zone of the vessel, the flue gas containing nitrogen oxides and carbon monoxide; providing overfire air into a burnout zone of the vessel from a first injector of overfire air to oxidize at least some of the carbon monoxide in the flue gas; injecting a selective reducing agent concurrent with overfire air at a level in the burnout zone downstream of the first injector of overfire air and downstream of the oxidization of the carbon monoxide, and reacting the selective reducing agent with the flue gas to reduce the nitrogen oxides.

摘要翻译： 一种降低流过容器的燃烧气体中的氮氧化物的浓度的方法，包括：在容器的燃烧区产生烟道气，所述烟道气含有氮氧化物和一氧化碳; 从第一喷射器的超燃空气向容器的燃尽区提供过量的空气，以氧化烟道气中的至少一些一氧化碳; 在超燃空气的第一喷射器下游的燃尽区域和一氧化碳的氧化下游，将过量空气同时喷射选择性还原剂，并使选择性还原剂与烟道气反应以还原氮氧化物。

公开(公告)号：US07892499B2

公开(公告)日：2011-02-22

申请号：US12014930

申请日：2008-01-16

申请人： Larry William Swanson ,  Wei Zhou ,  David Kelly Moyeda ,  Roy Payne

发明人： Larry William Swanson ,  Wei Zhou ,  David Kelly Moyeda ,  Roy Payne

IPC分类号： B01D50/00

CPC分类号： B01D53/56 ,  B01D53/62 ,  B01D53/79 ,  F23C2201/101 ,  F23C2201/30 ,  F23J7/00 ,  F23J2215/10 ,  Y02A50/2341

摘要： A method of decreasing a concentration of nitrogen oxides in a combustion gas flowing through a vessel including: generating a flue gas in a combustion zone of the vessel, the flue gas containing nitrogen oxides and carbon monoxide; providing overfire air into a burnout zone of the vessel from a first injector of overfire air to oxidize at least some of the carbon monoxide in the flue gas; injecting a selective reducing agent concurrent with overfire air at a level in the burnout zone downstream of the first injector of overfire air and downstream of the oxidization of the carbon monoxide, and reacting the selective reducing agent with the flue gas to reduce the nitrogen oxides.

摘要翻译： 一种降低流过容器的燃烧气体中的氮氧化物的浓度的方法，包括：在容器的燃烧区产生烟道气，所述烟道气含有氮氧化物和一氧化碳; 从第一喷射器的超燃空气向容器的燃尽区提供过量的空气，以氧化烟道气中的至少一些一氧化碳; 在超燃空气的第一喷射器下游的燃尽区域和一氧化碳的氧化下游，将过量空气同时喷射选择性还原剂，并使选择性还原剂与烟道气反应以还原氮氧化物。

公开(公告)号：US20110142739A1

公开(公告)日：2011-06-16

申请号：US13030599

申请日：2011-02-18

申请人： Larry William Swanson ,  Wei Zhou ,  David Kelly Moyeda ,  Roy Payne

发明人： Larry William Swanson ,  Wei Zhou ,  David Kelly Moyeda ,  Roy Payne

IPC分类号： B01D53/56

CPC分类号： B01D53/56 ,  B01D53/62 ,  B01D53/79 ,  F23C2201/101 ,  F23C2201/30 ,  F23J7/00 ,  F23J2215/10 ,  Y02A50/2341

摘要： A method of decreasing a concentration of nitrogen oxides in a combustion gas flowing through a vessel including: generating a flue gas in a combustion zone of the vessel, the flue gas containing nitrogen oxides and carbon monoxide; providing overfire air into a burnout zone of the vessel from a first injector of overfire air to oxidize at least some of the carbon monoxide in the flue gas; injecting a selective reducing agent concurrent with overfire air at a level in the burnout zone downstream of the first injector of overfire air and downstream of the oxidization of the carbon monoxide, and reacting the selective reducing agent with the flue gas to reduce the nitrogen oxides.

摘要翻译： 一种降低流过容器的燃烧气体中的氮氧化物的浓度的方法，包括：在容器的燃烧区产生烟道气，所述烟道气含有氮氧化物和一氧化碳; 从第一喷射器的超燃空气向容器的燃尽区提供过量的空气，以氧化烟道气中的至少一些一氧化碳; 在超燃空气的第一喷射器下游的燃尽区域和一氧化碳的氧化下游，将过量空气同时喷射选择性还原剂，并使选择性还原剂与烟道气反应以还原氮氧化物。

公开(公告)号：US07374735B2

公开(公告)日：2008-05-20

申请号：US10454597

申请日：2003-06-05

申请人： Larry William Swanson ,  Wei Zhou ,  David Kelly Moyeda ,  Roy Payne

发明人： Larry William Swanson ,  Wei Zhou ,  David Kelly Moyeda ,  Roy Payne

IPC分类号： B01D53/56

CPC分类号： B01D53/56 ,  B01D53/62 ,  B01D53/79 ,  F23C2201/101 ,  F23C2201/30 ,  F23J7/00 ,  F23J2215/10 ,  Y02A50/2341

摘要： A method of decreasing the concentration of nitrogen oxides in a combustion gas flowing through a vessel including the steps of: generating a flue gas in a combustion zone of the vessel, the flue gas containing nitrogen oxides and carbon monoxide; providing overfire air into a burnout zone of the vessel from a first injector of the overfire air to oxidize at least some of the carbon monoxide in the flue gas; injecting a selective reducing agent concurrent with the overfire air at a level in the burnout zone downstream of the first injector of overfire air and downstream of the oxidization of the carbon monoxide; and reacting the selective reducing agent with the flue gas to reduce the nitrogen oxides.

摘要翻译： 一种降低流过容器的燃烧气体中的氮氧化物的浓度的方法，包括以下步骤：在容器的燃烧区产生烟道气，所述烟道气含有氮氧化物和一氧化碳; 从所述过火空气的第一喷射器向所述容器的燃烧区域提供过热空气以氧化所述烟道气中的至少一些一氧化碳; 在超燃空气的第一喷射器下游的燃尽区域和一氧化碳的氧化下游，将过热空气同时喷射选择性还原剂; 并使选择性还原剂与烟道气反应以还原氮氧化物。

公开(公告)号：US07776279B2

公开(公告)日：2010-08-17

申请号：US12123136

申请日：2008-05-19

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

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

IPC分类号： B01D50/00

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

摘要： A combustion apparatus for combusting including: a boiler defining an enclosed flue gas path having a combustion zone and a burnout zone, wherein flue gas is formed in the combustion zone and the combustion flue gas comprising nitrogen oxides; a fuel injector aligned with and introducing fuel into the combustion zone and a combustion air injector aligned with and introducing air into the combustion zone; an overfire air system adjacent the burnout zone comprising an overfire air port adjacent the burnout zone and through which overfire air flows into the burnout zone, and a nitrogen reagent injector having an outlet aligned with the overfire air system and injecting nitrogen reagent gas or small droplets into said overfire air, wherein said small droplets have an average diameter of no greater than 50 microns.

摘要翻译： 一种用于燃烧的燃烧装置，包括：锅炉，限定具有燃烧区和燃烧区的封闭烟道，其中烟道气在燃烧区中形成，燃烧烟气包含氮氧化物; 燃料喷射器，其将燃料对准并将燃料引入燃烧区域;以及燃烧空气喷射器，其将空气对准并将其引入燃烧区域; 邻近燃尽区的过火空气系统包括邻近燃烧区的过火空气口，并且过热空气流过燃烧区;以及氮试剂注射器，其具有与过火空气系统对准的出口并注入氮气反应气体或小液滴 进入所述过火空气，其中所述小液滴具有不大于50微米的平均直径。

公开(公告)号：US20080220387A1

公开(公告)日：2008-09-11

申请号：US12123136

申请日：2008-05-19

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

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

IPC分类号： F23Q2/34

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

摘要： A combustion apparatus for combusting including: a boiler defining an enclosed flue gas path having a combustion zone and a burnout zone, wherein flue gas is formed in the combustion zone and the combustion flue gas comprising nitrogen oxides; a fuel injector aligned with and introducing fuel into the combustion zone and a combustion air injector aligned with and introducing air into the combustion zone; an overfire air system adjacent the burnout zone comprising an overfire air port adjacent the burnout zone and through which overfire air flows into the burnout zone, and a nitrogen reagent injector having an outlet aligned with the overfire air system and injecting nitrogen reagent gas or small droplets into said overfire air, wherein said small droplets have an average diameter of no greater than 50 microns.

摘要翻译： 一种用于燃烧的燃烧装置，包括：锅炉，限定具有燃烧区和燃烧区的封闭烟道，其中烟道气在燃烧区中形成，燃烧烟气包含氮氧化物; 燃料喷射器，其将燃料对准并将燃料引入燃烧区域;以及燃烧空气喷射器，其将空气对准并将其引入燃烧区域; 邻近燃尽区的过火空气系统包括邻近燃烧区的过火空气口，并且过热空气流过燃烧区;以及氮试剂注射器，其具有与过火空气系统对准的出口并注入氮气反应气体或小液滴 进入所述过火空气，其中所述小液滴具有不大于50微米的平均直径。

公开(公告)号：US07374736B2

公开(公告)日：2008-05-20

申请号：US10705820

申请日：2003-11-13

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

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

IPC分类号： B01D53/56

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

摘要： 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.

摘要翻译： 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：US08501131B2

公开(公告)日：2013-08-06

申请号：US13327121

申请日：2011-12-15

申请人： David Kelly Moyeda ,  Wei Zhou ,  Antonio Marquez ,  Xu Guang ,  Santosh Nareddy

发明人： David Kelly Moyeda ,  Wei Zhou ,  Antonio Marquez ,  Xu Guang ,  Santosh Nareddy

IPC分类号： B01D53/56 ,  B01D53/74 ,  B01D53/79 ,  B05D7/04 ,  F23D11/38

CPC分类号： B01D53/56 ,  B01D53/8631 ,  B01D2257/404 ,  B01D2258/0283 ,  F23J15/003 ,  F23J2215/10 ,  F23J2219/10 ,  F23J2219/20

摘要： An apparatus to introduce a reagent to reduce nitrogen oxides in flue gas including: nozzles mounted to a passage for the flue gas, wherein the nozzles are mounted downstream of a SNCR system and upstream of a SCR system, wherein the nozzles are mounted on one or more walls of the passage and are configured to inject a pressurized fluid into the flue gas; a source of the pressurized fluid which is in fluid communication with the nozzles such that the pressurized fluid flows to the nozzles; a source of a NOx reducing reagent and a mixing device which mixes the reagent with the pressurized fluid such that the pressurized fluid flowing to the nozzles includes the reagent.

摘要翻译： 一种用于引入试剂以还原烟道气中的氮氧化物的装置，包括：安装到烟道气通道的喷嘴，其中喷嘴安装在SNCR系统的下游和SCR系统的上游，其中喷嘴安装在一个或 更多的通道壁被构造成将加压流体注入烟气中; 加压流体的源与喷嘴流体连通，使得加压流体流到喷嘴; NOx还原剂的来源和将试剂与加压流体混合的混合装置，使得流到喷嘴的加压流体包括试剂。

公开(公告)号：US20130156671A1

公开(公告)日：2013-06-20

申请号：US13327121

申请日：2011-12-15

申请人： David Kelly Moyeda ,  Wei Zhou ,  Antonio Marquez ,  Xu Guang ,  Santosh Nareddy

发明人： David Kelly Moyeda ,  Wei Zhou ,  Antonio Marquez ,  Xu Guang ,  Santosh Nareddy

IPC分类号： B01D53/56 ,  F22D11/00

CPC分类号： B01D53/56 ,  B01D53/8631 ,  B01D2257/404 ,  B01D2258/0283 ,  F23J15/003 ,  F23J2215/10 ,  F23J2219/10 ,  F23J2219/20

摘要： An apparatus to introduce a reagent to reduce nitrogen oxides in flue gas including: nozzles mounted to a passage for the flue gas, wherein the nozzles are mounted downstream of a SNCR system and upstream of a SCR system, wherein the nozzles are mounted on one or more walls of the passage and are configured to inject a pressurized fluid into the flue gas; a source of the pressurized fluid which is in fluid communication with the nozzles such that the pressurized fluid flows to the nozzles; a source of a NOx reducing reagent and a mixing device which mixes the reagent with the pressurized fluid such that the pressurized fluid flowing to the nozzles includes the reagent.

摘要翻译： 一种用于引入试剂以还原烟道气中的氮氧化物的装置，包括：安装到烟道气通道的喷嘴，其中喷嘴安装在SNCR系统的下游和SCR系统的上游，其中喷嘴安装在一个或 更多的通道壁被构造成将加压流体注入烟气中; 加压流体的源与喷嘴流体连通，使得加压流体流到喷嘴; NOx还原剂的来源和将试剂与加压流体混合的混合装置，使得流到喷嘴的加压流体包括试剂。

公开(公告)号：US20100081102A1

公开(公告)日：2010-04-01

申请号：US12241623

申请日：2008-09-30

申请人： Donald K. Morrison ,  Wei Zhou ,  Bob Frato ,  David Kelly Moyeda ,  Robert W. Waltz

发明人： Donald K. Morrison ,  Wei Zhou ,  Bob Frato ,  David Kelly Moyeda ,  Robert W. Waltz

IPC分类号： F23D14/00 ,  F23D1/00

CPC分类号： F27D99/0033 ,  C21C5/5217 ,  F23D1/00 ,  F23D17/00 ,  F27D99/0003 ,  Y02P10/216

摘要： Embodiments of the invention can include systems and methods for facilitating varying coal pipes for a pulverized coal burner. In one embodiment, a method for improving operation of a pulverized coal burner comprising at least one burner comprising at least one coal pipe having an inner diameter, and an outer diameter. The method can include installing at least one sleeve or at least one liner within the coal pipe between the inner and outer diameter of the coal pipe, wherein velocity of a primary air and pulverized coal mixture is increased in an upstream portion of the coal pipe. The method can also include reducing the at least one sleeve or liner, wherein velocity of the primary air and pulverized coal mixture is reduced in a downstream portion of the coal pipe.

摘要翻译： 本发明的实施例可以包括用于促进粉煤燃烧器的改变煤管的系统和方法。 在一个实施例中，一种用于改善粉煤燃烧器的操作的方法，包括至少一个燃烧器，其包括至少一个具有内径和外径的煤管。 该方法可以包括在煤管的内外径之间的煤管内安装至少一个套筒或至少一个衬套，其中一次空气和粉煤混合物的速度在煤管的上游部分增加。 该方法还可以包括减少至少一个套筒或衬套，其中一次空气和粉煤混合物的速度在煤管的下游部分减少。