公开(公告)号：US5270025A

公开(公告)日：1993-12-14

申请号：US858316

申请日：1992-03-25

申请人： Loc Ho ,  Shih L. Chen ,  William R. Seeker ,  Peter M. Maly

发明人： Loc Ho ,  Shih L. Chen ,  William R. Seeker ,  Peter M. Maly

IPC分类号： B01D53/56 ,  C01B21/00 ,  B01J8/00 ,  C01B17/00 ,  C01B17/20

CPC分类号： B01D53/56 ,  Y02C20/10

摘要： Method for controlling N.sub.2 O emissions from stationary combustion systems having variable flue gas temperatures are disclosed. The N.sub.2 O emissions are controlled by the introduction of a N.sub.2 O control agent, such as an alkaline compound, into the effluent stream. In addition, the present invention discloses methods for controlling N.sub.2 O emissions from stationary combustion systems having variable flue gas temperatures while reducing NO.sub.x emissions. Use of an NO.sub.x reducing agent and an N.sub.2 O control agent, such as urea and monosodium glutamate, enlarges the temperature window for effective selective noncatalytic NO.sub.x reduction while significantly eliminating N.sub.2 O emissions commonly experienced with urea injection. Further, the present invention discloses methods for controlling N.sub.2 O emissions from stationary combustion systems having variable flue gas temperatures while reducing SO.sub.x emissions. Use of an NO.sub.x reducing agent, an SO.sub.x reducing agent, and an N.sub.2 O control agent, such as urea, an alkaline-earth metal compound, and an alkali-metal compound, respectively, enlarges the temperature window for effective NO.sub.x and SO.sub.x reductions while significantly eliminating N.sub.2 O emissions.

摘要翻译： 公开了用于控制具有可变烟道气温度的固定燃烧系统的N2O排放的方法。 通过在流出物流中引入N2O控制剂，例如碱性化合物来控制N2O排放。 此外，本发明公开了用于控制具有可变烟道气温度的固定燃烧系统的N2O排放的方法，同时减少NOx排放。 使用NO x还原剂和N2O控制剂，如尿素和谷氨酸钠，可以扩大用于有效选择性非催化NOx还原的温度窗口，同时显着消除尿素喷射通常经历的N2O排放。 此外，本发明公开了用于控制具有可变烟道气温度的固定燃烧系统的N2O排放的方法，同时减少SO x排放。 分别使用NO x还原剂，SOx还原剂和N2O控制剂，如尿素，碱土金属化合物和碱金属化合物，可大大增加有效NOx和SOx还原的温度窗口 消除N2O排放。

公开(公告)号：US06863005B2

公开(公告)日：2005-03-08

申请号：US10724251

申请日：2003-12-01

申请人： William Steven Lanier ,  Charles M. Booth ,  Vitali V. Lissianski ,  Vladimir M. Zamansky ,  Peter M. Maly ,  William Randall Seeker

发明人： William Steven Lanier ,  Charles M. Booth ,  Vitali V. Lissianski ,  Vladimir M. Zamansky ,  Peter M. Maly ,  William Randall Seeker

IPC分类号： B01D53/64 ,  F23J15/00

CPC分类号： B01D53/64

摘要： 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.

摘要翻译： 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。

公开(公告)号：US06471506B1

公开(公告)日：2002-10-29

申请号：US09707123

申请日：2000-11-06

申请人： Vladimir M. Zamansky ,  Peter M. Maly ,  Jerald A. Cole ,  Vitali V. Lissianski ,  William Randall Seeker

发明人： Vladimir M. Zamansky ,  Peter M. Maly ,  Jerald A. Cole ,  Vitali V. Lissianski ,  William Randall Seeker

IPC分类号： F23J700

CPC分类号： F23G5/14 ,  B01D53/56 ,  B01D53/565 ,  B01D2251/2062 ,  B01D2251/2067 ,  F23G2207/101 ,  F23G2207/103 ,  F23J7/00 ,  F23J2219/20

摘要： Various methods for decreasing the amount of nitrogen oxides released to the atmosphere as a component of combustion gas mixtures are provided. The methods specifically provide for the removal of nitric oxide and nitrogen dioxide (NOx) from gas mixtures emitted from stationary combustion systems. In particular, methods for improving efficiency of nitrogen oxide reduction from combustion systems include injecting metal-containing compounds into the main combustion zone and/or the reburning zone of a combustion system. The metal containing compounds react with active combustion species, and these reactions change radical concentrations and significantly improve NOx conversion to molecular nitrogen. The metal-containing additives can be injected with the main fuel, in the main combustion zone, with secondary or reburning fuel addition, or at several locations in the main combustion zone and reburning zone. Optionally, nitrogenous reducing agents and/or overfire air can be injected downstream to further increase NOx reduction.

摘要翻译： 提供了用于减少作为燃烧气体混合物的组分释放到大气中的氮氧化物的量的各种方法。 该方法专门提供从固定燃烧系统排放的气体混合物中去除一氧化氮和二氧化氮（NOx）。 特别地，用于提高燃烧系统中氮氧化物还原效率的方法包括将含金属化合物注入燃烧系统的主燃烧区和/或再燃烧区。 含金属化合物与活性燃烧物质反应，这些反应改变自由基浓度，并显着提高NOx转化为分子氮。 在主燃烧区域中，含金属添加剂可以与主要燃料一起注入二次燃烧或再燃燃料添加剂，或在主燃烧区域和再燃烧区域的多个位置。 任选地，可以向下游注入含氮还原剂和/或过量空气以进一步增加NOx还原。

公开(公告)号：US5756059A

公开(公告)日：1998-05-26

申请号：US848773

申请日：1997-05-02

申请人： Vladimir M. Zamansky ,  Peter M. Maly ,  William Randall Seeker

发明人： Vladimir M. Zamansky ,  Peter M. Maly ,  William Randall Seeker

IPC分类号： B01D53/56 ,  F23C6/04 ,  F23J7/00 ,  B01J8/00

CPC分类号： B01D53/56 ,  F23C6/047 ,  F23J7/00 ,  F23C2201/101 ,  F23C2201/301 ,  F23C2900/01001 ,  F23J2215/10 ,  F23J2219/20 ,  Y02C20/10

摘要： The present invention is related to methods and systems for preventing the release of nitrogen oxides with combustion flue gases emitted to the atmosphere. The invention is specifically directed to the removal of nitric oxide, nitrogen dioxide, and nitrous oxide from flue gas in stationary combustion systems. The methods of the invention improve efficiency of conventional reburning and advanced reburning processes by two key improvements, including the injection of a reducing agent into the reburning zone and the use of promoters, which considerably enhance NO.sub.x control. The promoters are metal-containing compounds that can be added to the reducing agents. These improvements allow either one or two stages of reducing agent injection for greater NO.sub.x control.

摘要翻译： 本发明涉及用于防止排放到大气中的燃烧烟道气释放氮氧化物的方法和系统。 本发明特别涉及在固定燃烧系统中从烟道气中去除一氧化氮，二氧化氮和一氧化二氮。 本发明的方法通过两个关键的改进提高了常规再燃烧和高级再燃烧过程的效率，包括将还原剂注入再燃烧区域以及使用促进剂，这显着增强了NOx控制。 促进剂是可以添加到还原剂中的含金属化合物。 这些改进允许一个或两个阶段的还原剂注入用于更大的NOx控制。

公开(公告)号：US07452517B2

公开(公告)日：2008-11-18

申请号：US11164713

申请日：2005-12-02

申请人： Vitali Lissianski ,  Randy Seeker ,  Peter M. Maly

发明人： Vitali Lissianski ,  Randy Seeker ,  Peter M. Maly

IPC分类号： B01D53/64 ,  F23J3/00 ,  F23J15/00

CPC分类号： B01D53/64 ,  B01D2251/106 ,  B01D2253/102 ,  B01D2257/602 ,  F23C6/042 ,  F23C2201/101 ,  F23C2900/06041 ,  F23J15/003 ,  F23J2215/60 ,  F23J2217/10 ,  F23J2219/30

摘要： Method for reducing mercury emissions from coal-fired combustion comprising staging of a combustion unit to remove mercury with fly ash from the flue gas, introducing activated carbon to remove mercury from the flue gas, and collecting the fly ash, activated carbon, and associated mercury in a particulate control device.

摘要翻译： 用于减少燃烧燃烧的汞排放的方法，包括分级燃烧单元以从烟道气中飞散灰分，引入活性炭以从烟道气中去除汞，以及收集飞灰，活性炭和相关汞 在微粒控制装置中。

公开(公告)号：US06726888B2

公开(公告)日：2004-04-27

申请号：US10054850

申请日：2002-01-25

申请人： William Steven Lanier ,  Charles M. Booth ,  Vitali V. Lissianski ,  Vladimir M. Zamansky ,  Peter M. Maly ,  William Randall Seeker

发明人： William Steven Lanier ,  Charles M. Booth ,  Vitali V. Lissianski ,  Vladimir M. Zamansky ,  Peter M. Maly ,  William Randall Seeker

IPC分类号： C01G1300

CPC分类号： B01D53/64

摘要： 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.

摘要翻译： 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。

公开(公告)号：US06206685B1

公开(公告)日：2001-03-27

申请号：US09387631

申请日：1999-08-31

申请人： Vladimir M. Zamansky ,  Peter M. Maly ,  Jerald A. Cole ,  Vitali V. Lissianski ,  William Randall Seeker

发明人： Vladimir M. Zamansky ,  Peter M. Maly ,  Jerald A. Cole ,  Vitali V. Lissianski ,  William Randall Seeker

IPC分类号： B01D5334

CPC分类号： F23G5/14 ,  B01D53/56 ,  B01D53/565 ,  B01D2251/2062 ,  B01D2251/2067 ,  F23G2207/101 ,  F23G2207/103 ,  F23J7/00 ,  F23J2219/20

摘要： Various methods for decreasing the amount of nitrogen oxides released to the atmosphere as a component of combustion gas mixtures are provided. The methods specifically provide for the removal of nitric oxide and nitrogen dioxide (NOx) from gas mixtures emitted from stationary combustion systems. In particular, methods for improving efficiency of nitrogen oxide reduction from combustion systems include injecting metal-containing compounds into the main combustion zone and/or the reburning zone of a combustion system. The metal containing compounds react with active combustion species, and these reactions change radical concentrations and significantly improve NOx conversion to molecular nitrogen. The metal-containing additives can be injected with the main fuel, in the main combustion zone, with secondary or reburning fuel addition, or at several locations in the main combustion zone and reburning zone. Optionally, nitrogenous reducing agents and/or overfire air can be injected downstream to further increase NOx reduction.

摘要翻译： 提供了用于减少作为燃烧气体混合物的组分释放到大气中的氮氧化物的量的各种方法。 该方法专门提供从固定燃烧系统排放的气体混合物中去除一氧化氮和二氧化氮（NOx）。 特别地，用于提高燃烧系统中氮氧化物还原效率的方法包括将含金属化合物注入燃烧系统的主燃烧区和/或再燃烧区。 含金属化合物与活性燃烧物质反应，这些反应改变自由基浓度，并显着提高NOx转化为分子氮。 在主燃烧区域中，含金属添加剂可以与主要燃料一起注入二次燃烧或再燃燃料添加剂，或在主燃烧区域和再燃烧区域的多个位置。 任选地，可以向下游注入含氮还原剂和/或过量空气以进一步增加NOx还原。