公开(公告)号：US20060275724A1

公开(公告)日：2006-12-07

申请号：US11143534

申请日：2005-06-02

Applicant: Mahendra Joshi ,  Xianming Li

Inventor： Mahendra Joshi ,  Xianming Li

IPC: F23C5/08

CPC classification number: F23C7/02 ,  F23C5/28 ,  F23C6/047 ,  F23C7/008 ,  F23C2201/101 ,  F23D14/22 ,  F23D14/32 ,  F23L2900/07007 ,  Y02E20/344

Abstract: A furnace combustion system includes a plurality of burners adapted to generate a plurality of flames and an oxidant port disposed between and surrounded by at least two of the burners. Each burner is spaced apart from another burner and adapted to combust a stream of a first fuel or an other fuel with a stream of a first oxidant or an other oxidant and to generate a flame. The oxidant port is adapted to transmit at least one jet of the first oxidant or the other oxidant axially between at least two of the flames. The at least one jet is transmitted from the oxidant port at a controlled flow rate. At least a portion of the first oxidant or the other oxidant in the jet is required to complete combustion of at least a portion of at least one stream of the first fuel or the other fuel.

Abstract translation: 炉燃烧系统包括适于产生多个火焰的多个燃烧器和设置在燃烧器中的至少两个燃烧器之间并被其包围的氧化剂口。 每个燃烧器与另一个燃烧器间隔开并且适于使第一燃料或其它燃料的流与第一氧化剂或其它氧化剂的流一起燃烧并产生火焰。 氧化剂端口适于在至少两个火焰之间轴向传输第一氧化剂或另一氧化剂的至少一个射流。 至少一个射流以受控流速从氧化剂端口传输。 需要喷射中的第一氧化剂或其它氧化剂的至少一部分来完成第一燃料或其它燃料的至少一部分流的至少一部分的燃烧。

公开(公告)号：US20060230996A1

公开(公告)日：2006-10-19

申请号：US11296367

申请日：2005-12-08

Applicant: Edward Kaczenski ,  Lawrence Bool ,  Hisashi Kobayashi

Inventor： Edward Kaczenski ,  Lawrence Bool ,  Hisashi Kobayashi

IPC: F23B99/00 ,  F23B90/00

CPC classification number: F23L7/007 ,  F23C6/045 ,  F23C2201/101 ,  F23C2201/20 ,  F23C2900/99004 ,  F23J2215/10 ,  Y02E20/344

Abstract: Emissions of NOx and CO are reduced from combustion devices such as coal-fired furnaces by increasing the stoichiometric ratio of burner(s) having a lower average temperature and increasing the stoichiometric ratio of burner(s) having a higher average temperature.

公开(公告)号：US20050103243A1

公开(公告)日：2005-05-19

申请号：US10714939

申请日：2003-11-18

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: F23J1/00 ,  B01D53/10 ,  B01D53/64 ,  F23C6/04 ,  F23C99/00 ,  F23J15/06 ,  F23J11/00 ,  F23B7/00

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.

Abstract translation: 公开了一种减少煤燃烧排放气体中的汞的方法。 通过分级燃烧过程和/或减少锅炉过量的氧气可以减少汞排放。 在燃烧分级条件下形成的飞灰比典型燃烧条件下形成的飞灰更能反应汞。 减少锅炉过量氧气也可以提高飞灰吸附汞的能力。

公开(公告)号：US20050036926A1

公开(公告)日：2005-02-17

申请号：US10640262

申请日：2003-08-14

Applicant: Vitali Lissianski ,  Vladimir Zamansky ,  Peter Maly ,  William Seeker

Inventor： Vitali Lissianski ,  Vladimir Zamansky ,  Peter Maly ,  William Seeker

IPC: B01D53/34 ,  B01D53/64

CPC classification number: F23C1/00 ,  B01D53/64 ,  B01D2257/602 ,  F23C6/047 ,  F23C2201/101 ,  F23C2201/301

Abstract: A method to reduce mercury in gas emissions from the combustion of low rank coal in a combustion system, said method including: combusting coal having a low chlorine content in the combustion system, wherein elemental mercury (Hg0) is released in the flue gas produced by the combustion of the low rank coal; releasing chlorine into the flue gas by combusting a coal having a high chlorine in the combustion system; reacting the elemental mercury and released chlorine in the flue gas to oxidize the mercury; adsorbing at least a portion of the oxidized mercury generated by the combustion of the coal with an adsorbent in the flue gas, and collecting the adsorbent with the oxidized mercury in a combustion waste treatment system.

Abstract translation: 一种在燃烧系统中减少来自低等级煤的燃烧的气体排放中的汞的方法，所述方法包括：在燃烧系统中燃烧具有低氯含量的煤，其中在烟道中释放元素汞（Hg） 由低级煤燃烧产生的气体; 通过在燃烧系统中燃烧具有高氯气的煤，将氯气释放到烟道气中; 使烟道气中的元素汞和释放的氯反应以氧化汞; 在烟道气中吸附由燃烧煤产生的至少一部分氧化汞和吸附剂，并在燃烧废物处理系统中用氧化汞收集吸附剂。

公开(公告)号：US06790031B2

公开(公告)日：2004-09-14

申请号：US10346009

申请日：2003-01-16

Applicant: Lawrence D. Berg ,  Edmund S. Schindler ,  Nigel John Garrad ,  John Joseph Halloran

Inventor： Lawrence D. Berg ,  Edmund S. Schindler ,  Nigel John Garrad ,  John Joseph Halloran

IPC: F23M300

CPC classification number: F23C6/047 ,  F23C5/32 ,  F23C2201/101 ,  Y02E20/344

Abstract: A tangential fired boiler has a circumferential wall defining a combustion zone and a plurality of fuel inlets disposed along the circumferential wall. The plurality of fuel inlets inject fuel at non-uniform rates in order to produce localized fuel rich, oxygen poor zones and fuel lean, oxygen rich zones within the combustion zone, and to cause ambient boiler gases to be entrained into and mix with the oxygen poor zone to achieve fuel staging of the boiler.

Abstract translation: 切向燃烧的锅炉具有限定燃烧区域的周向壁和沿着周向壁设置的多个燃料入口。 多个燃料入口以不均匀的速率喷射燃料，以便在燃烧区内产生局部富燃料，贫氧区和燃料贫乏的富氧区，并且使环境锅炉气体被夹带并与氧气混合 不良区域实​​现锅炉燃油分级。

公开(公告)号：US20040074427A1

公开(公告)日：2004-04-22

申请号：US10436164

申请日：2003-05-13

Inventor： Hisashi Kobayashi ,  Lawrence E. Bool III

IPC: F23D001/00 ,  F23C001/10

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.

Abstract translation: 碳氢化合物液体和固体的燃烧是通过向燃料流中加入少量的氧来形成较少的NOx来实现的。

公开(公告)号：US06699030B2

公开(公告)日：2004-03-02

申请号：US10194601

申请日：2002-07-11

Applicant: Lawrence E. Bool, III ,  Hisashi Kobayashi

Inventor： Lawrence E. Bool, III ,  Hisashi Kobayashi

IPC: F23M304

CPC classification number: F23C6/045 ,  F23C5/32 ,  F23C6/047 ,  F23C7/004 ,  F23C2201/101 ,  F23C2201/20 ,  F23C2900/06041 ,  F23C2900/99004 ,  F23D1/00 ,  F23D14/24 ,  F23D2900/00006 ,  F23D2900/01001 ,  F23L7/007 ,  F23L9/04 ,  F23L2900/07006 ,  F23L2900/07007 ,  F23N2037/08 ,  F23N2037/28 ,  Y02E20/344

Abstract: Improved operational characteristics such as improved fuel efficiency, reduction of NOx formation, reduction of the amount of unburned carbon in the ash, and lessened tendency to corrosion at the tube wall, in a multi-burner furnace are obtained by reducing the flow rate of combustion air to the burners and selectively individually feeding oxidant to only some of the burners.

Abstract translation: 通过降低燃烧流量来获得改进的燃料效率，NOx形成的减少，灰分中未燃烧碳的量的减少以及管壁上的腐蚀倾向的改善的操作特性 空气到燃烧器并且选择性地将氧化剂单独地供给到仅一些燃烧器。

公开(公告)号：US20030101725A1

公开(公告)日：2003-06-05

申请号：US10006350

申请日：2001-12-03

Applicant: American Air Liquide, Inc.

Inventor： Ovidiu Marin ,  Erwin Penfornis

IPC: F01K025/06 ,  F01K025/08 ,  F01K025/00

CPC classification number: F25J3/04145 ,  F23C2201/101 ,  F23L7/00 ,  F23L2900/07002 ,  F23L2900/07005 ,  F25J3/04018 ,  F25J3/0403 ,  F25J3/04115 ,  F25J3/04533 ,  F25J3/04563 ,  F25J3/04581 ,  F25J3/04593 ,  F25J3/04612 ,  F25J2215/50 ,  F25J2260/42 ,  Y02E20/344 ,  Y02P80/154

Abstract: This invention proposes innovative techniques of NOx reduction in boiler operation through an adaptation of staged combustion in combustion boilers. In preferred processes, air is fed into an air separation unit, and a nitrogen-enriched stream is combined with air to produce a nitrogen-enriched first stage air stream, and at least a portion of an oxygen-enriched stream is mixed with air to produce an oxygen-enriched second stage air stream. A reduction in NOx and increase in efficiency is promoted by the inventive processes and systems.

Abstract translation: 本发明通过适应燃烧锅炉中的分段燃烧来提出锅炉运行中NOx还原的创新技术。 在优选的方法中，将空气进料到空气分离单元中，并且将富氮流与空气混合以产生富氮第一级空气流，并且至少一部分富氧流与空气混合 产生富氧第二级气流。 本发明的方法和系统促进了NOx的降低和效率的提高。

公开(公告)号：US20030091948A1

公开(公告)日：2003-05-15

申请号：US10194601

申请日：2002-07-11

Inventor： Lawrence E. Bool III ,  Hisashi Kobayashi

IPC: F23M003/04

CPC classification number: F23C6/045 ,  F23C5/32 ,  F23C6/047 ,  F23C7/004 ,  F23C2201/101 ,  F23C2201/20 ,  F23C2900/06041 ,  F23C2900/99004 ,  F23D1/00 ,  F23D14/24 ,  F23D2900/00006 ,  F23D2900/01001 ,  F23L7/007 ,  F23L9/04 ,  F23L2900/07006 ,  F23L2900/07007 ,  F23N2037/08 ,  F23N2037/28 ,  Y02E20/344

Abstract: Improved operational characteristics such as improved fuel efficiency, reduction of NOx formation, reduction of the amount of unburned carbon in the ash, and lessened tendency to corrosion at the tube wall, in a multi-burner furnace are obtained by reducing the flow rate of combustion air to the burners and selectively individually feeding oxidant to only some of the burners.

Abstract translation: 通过降低燃烧流量来获得改进的燃料效率，NOx形成的减少，灰分中未燃烧碳的量的减少以及管壁上的腐蚀倾向的改善的操作特性 空气到燃烧器并且选择性地将氧化剂单独地供给到仅一些燃烧器。

公开(公告)号：US20020144636A1

公开(公告)日：2002-10-10

申请号：US10101795

申请日：2002-03-19

Inventor： Toshikazu Tsumura ,  Hirofumi Okazaki ,  Miki Shimogori ,  Kenji Kiyama ,  Kouji Kuramashi ,  Hitoshi Kikuchi ,  Yoshitaka Takahashi ,  Shigeki Morita ,  Kazuhito Sakai ,  Masayuki Taniguchi ,  Hironobu Kobayashi

IPC: F23D001/00

CPC classification number: F23C6/045 ,  F23C5/32 ,  F23C7/004 ,  F23C7/008 ,  F23C2201/101 ,  F23D1/00 ,  F23D2201/20 ,  F23D2208/10 ,  F23D2209/20 ,  F23L15/00 ,  Y02E20/348

Abstract: According to a burner of the present invention, a stable combustion is obtained in a wide range from a high-load operation condition to a low-load operation condition even in the case of low quality solid fuel such as brown coal. The amount of air supplied from additional air holes or additional air nozzles 12 can be adjusted depending on the combustion load of furnace 41. At a low load, the amount of air supplied from additional air holes or additional air nozzles 12 is increased, whereby the oxygen concentration in a recirculation zones 19 formed downstream of the outside of a fuel nozzle 11 exit, permits a stable combustion. At a high load, the amount of air supplied from additional air holes or additional air nozzles 12 is reduced, whereby a flame is formed in a position far from the fuel nozzle 11. This suppresses thermal radiation onto a solid fuel burner 42 structure and a furnace 41 wall. The solid fuel burner 42 is applicable to combustion using low-quality solid fuel such as brown coal and exhaust gas as the carrier gas.

Abstract translation: 根据本发明的燃烧器，即使在低质量的固体燃料（例如褐煤）的情况下，也能够在从高负荷运转状态到低负荷运转状态的宽范围内得到稳定的燃烧。 从附加空气孔或附加空气喷嘴12供应的空气量可以根据炉41的燃烧负荷来调节。在低负载下，从附加气孔或附加空气喷嘴12供应的空气量增加，由此 形成在燃料喷嘴11外侧的再循环区域19中的氧浓度离开，能够稳定地燃烧。 在高负载下，从附加空气孔或附加空气喷嘴12供应的空气量减少，从而在远离燃料喷嘴11的位置形成火焰。这抑制了对固体燃料燃烧器42结构的热辐射和 炉41墙。 固体燃料燃烧器42适用于使用诸如褐煤和废气的低质量固体燃料作为载气的燃烧。