(19)
(11) EP 1 914 475 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.11.2013 Bulletin 2013/47

(43) Date of publication A2:
23.04.2008 Bulletin 2008/17

(21) Application number: 07397034.5

(22) Date of filing: 12.10.2007
(51) International Patent Classification (IPC): 
F23C 10/28(2006.01)
 F23N 5/00(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 13.10.2006 FI 20065655

(71) Applicant: Fortum OYJ
02150 Espoo (FI)

(72) Inventor:
  • Raiko, Markku
    05800 Hyvinkää (FI)

(74) Representative: Hovi, Simo Pekka Tapani et al
Seppo Laine Oy, Itämerenkatu 3 B
00180 Helsinki
00180 Helsinki (FI)

   


(54) Method and apparatus for controlling combustion in a furnace


(57) Method for controlling of combustion in real time for example in a fluidizised bed furnace. The invention is suitable especially for controlling combustion of fuels that have variable composition and are difficult to combust. Such are for example waste fuels and biomasses. In the method flue gas is taken from the furnace, the flue gas is led to a washer to interact with the washing media of the washer and at least one property of the washing media of the washer is measured for evaluating properties of the gas phase indirectly.







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Search report