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1.发明专利
公开(公告)号：DE602004029978D1
公开(公告)日：2010-12-23
申请号：DE602004029978
申请日：2004-12-22
Applicant: GEN ELECTRIC
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公开(公告)号：CA2510604C
公开(公告)日：2014-02-11
申请号：CA2510604
申请日：2005-06-23
Applicant: GEN ELECTRIC
Abstract: Methods and systems for reducing nitrogen oxides in combustion flue gas is provided. The method includes combusting a fuel (22) in a main combustion zone (14) 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.
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公开(公告)号：DE602004025439D1
公开(公告)日：2010-03-25
申请号：DE602004025439
申请日：2004-11-17
Applicant: GEN ELECTRIC
Inventor： LISSIANSKI VITALI VICTOR , SEEKER WILLIAM RANDALL , ZAMANSKY VLADIMIR M , MALY PETER MARTIN , PAYNE ROY , HO LOC
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.
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Patent Agency Ranking
公开(公告)号：ES2358328T3
公开(公告)日：2011-05-09
申请号：ES04256968
申请日：2004-11-10
Applicant: GEN ELECTRIC
Inventor： PAYNE ROY , LISSIANSKI VITALI VICTOR , SWANSON LARRY WILLIAM , ZHOU WEI , ZAMANSKY VLADIMIR M
Abstract: Un procedimiento de disminución de la concentración de óxidos de nitrógeno en un gas de escape de combustión (24) que comprende: a. formar un gas de escape de combustión en una zona de combustión (12), comprendiendo el gas de escape de combustión óxidos de nitrógeno; b. proporcionar aire de sobre fuego (28) y gotitas de una solución, partículas o un gas de un agente reductor selectivo (34) en una zona de abrasamiento (16), siendo las gotitas o partículas de un tamaño inferior a 50 micrómetros para promover la rápida reducción de los óxidos de nitrógeno de forma que la vida promedio de la gotita en el gas de escape de combustión y el aire de sobre fuego (28) sea igual al periodo durante el cual el aire de sobre fuego (28) se mezcla con el gas de escape de combustión; c. mezclar (34) el aire de sobre fuego y el agente reductor selectivo con el gas de escape de combustión en la zona de abrasamiento a una temperatura por encima de un intervalo de temperatura óptimo para la reducción de los óxidos de nitrógeno; d. a medida que el gas de escape de combustión calienta el aire de sobre fuego y el agente reductor selectivo hasta el intervalo de temperatura óptimo (54) de 871 ºC (1600 ºF) a 1093 ºC (2000 ºF) se reducen los óxidos de nitrógeno con el agente reductor, y e. continuar aumentando la temperatura del aire de sobre fuego y el agente reductor selectivo más allá del intervalo de temperatura óptimo con el gas de escape.
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公开(公告)号：DE602004031077D1
公开(公告)日：2011-03-03
申请号：DE602004031077
申请日：2004-11-10
Applicant: GEN ELECTRIC
Inventor： PAYNE ROY , LISSIANSKI VITALI VICTOR , SWANSON LARRY WILLIAM , ZHOU WEI , ZAMANSKY VLADIMIR M
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公开(公告)号：AT457193T
公开(公告)日：2010-02-15
申请号：AT04257133
申请日：2004-11-17
Applicant: GEN ELECTRIC
Inventor： LISSIANSKI VITALI VICTOR , SEEKER WILLIAM RANDALL , ZAMANSKY VLADIMIR M , MALY PETER MARTIN , PAYNE ROY , HO LOC
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.
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公开(公告)号：DE102007044731A1
公开(公告)日：2008-04-10
申请号：DE102007044731
申请日：2007-09-18
Applicant: GEN ELECTRIC
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公开(公告)号：CA2510604A1
公开(公告)日：2006-01-06
申请号：CA2510604
申请日：2005-06-23
Applicant: GEN ELECTRIC
Abstract: Methods and systems for reducing nitrogen oxides in combustion flue gas is provided. The method includes combusting a fuel (22) in a main combustion zone (14) such that a flow of combustion flue gas is generated wherein the combustion flue gas includes at least one nitrogen oxide species, establishi ng 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 element al nitrogen such that a concentration of nitrogen oxides is reduced.
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