EP 3256780 A1 20171220 - METHOD FOR REDUCING NITROGEN OXIDE EMISSIONS IN A BUBBLING FLUIDIZED BED BOILER AND BUBBLING FLUIDIZED BED BOILER
Title (en)
METHOD FOR REDUCING NITROGEN OXIDE EMISSIONS IN A BUBBLING FLUIDIZED BED BOILER AND BUBBLING FLUIDIZED BED BOILER
Title (de)
VERFAHREN ZUR REDUZIERUNG VON STICKSTOFFOXIDEMISSIONEN IN EINEM BRODELNDEN FLIESSBETTKESSEL UND BRODELNDER FLIESSBETTKESSEL
Title (fr)
PROCÉDÉ DE RÉDUCTION DES ÉMISSIONS D'OXYDE D'AZOTE DANS UNE CHAUDIÈRE À LIT FLUIDISÉ BOUILLONNANT ET CHAUDIÈRE À LIT FLUIDISÉ BOUILLONNANT
Publication
Application
Priority
- FI 20155088 A 20150209
- FI 2016050079 W 20160208
Abstract (en)
[origin: WO2016128616A1] The invention relates to a meth- od for reducing nitrogen oxide emissions in a bubbling fluidized bed boiler. The method comprises supplying nitrogen oxide reductant in the boiler furnace at a cer- tain injection level where the tempera- ture in the furnace is such as to enable the nitrogen oxide reductant to reduce nitrogen oxide concentration in the flue gas. Combustion air for volatile matter is supplied into the first combustion zone (I) along with the fuel supply such that part of the combustion air for vola- tile matter is supplied as mixed with the fuel supply and part of the combustion air for volatile matter is supplied as surrounding at least part of the fuel supply. The velocity at which the combus- tion air for volatile matter is supplied is 10 to 25 m/s. The invention further relates to a bubbling fluidized bed and to ause thereof.
IPC 8 full level
F23C 10/12 (2006.01); F23C 10/20 (2006.01); F23J 7/00 (2006.01); F23L 1/02 (2006.01); F23L 9/02 (2006.01)
CPC (source: EP FI)
F23C 10/12 (2013.01 - EP); F23C 10/20 (2013.01 - EP); F23C 10/22 (2013.01 - FI); F23J 7/00 (2013.01 - EP); F23L 1/02 (2013.01 - EP); F23L 9/02 (2013.01 - EP); F23L 9/06 (2013.01 - FI); F27B 15/10 (2013.01 - FI); F23J 2215/10 (2013.01 - EP)
Citation (search report)
See references of WO 2016128616A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2016128616 A1 20160818; EP 3256780 A1 20171220; FI 126253 B 20160831; FI 20155088 A 20160810
DOCDB simple family (application)
FI 2016050079 W 20160208; EP 16704032 A 20160208; FI 20155088 A 20150209