(19)
(11) EP 1 243 638 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.01.2004 Bulletin 2004/01

(43) Date of publication A2:
25.09.2002 Bulletin 2002/39

(21) Application number: 02396034.7

(22) Date of filing: 18.03.2002
(51) International Patent Classification (IPC)7: C10L 10/02
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 21.03.2001 FI 20010572

(71) Applicant: VALTION TEKNILLINEN TUTKIMUSKESKUS
02150 Espoo 15 (FI)

(72) Inventors:
  • Hämäläinen, Jouni
    40270 Palokka (FI)
  • Orjala, Markku
    40500 Jyväskylä (FI)

(74) Representative: Helke, Kimmo Kalervo 
Kespat Oy, P.O. Box 601
40101 Jyväskylä
40101 Jyväskylä (FI)

   


(54) Method for sulphur retention in a power plant


(57) The invention relates to a method for sulphur retention in a power plant, in which, along with a fuel with a sulphur content and air, an additive is added to the firebox of a thermal boiler, which binds the sulphur dioxide arising in connection with combustion. According to the invention, the said additive is wood ash.






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