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Calcium sulphide formation in fluidized bed boilers

Anders Lyngfelt (Institutionen för energiteknik) ; Vratislav Langer (Institutionen för oorganisk miljökemi) ; Britt-Marie Steenari (Institutionen för oorganisk miljökemi) ; Kathy Puromäki (Institutionen för oorganisk miljökemi)
The Canadian Journal of Chemical Engineering (0008-4034). Vol. 73 (1995), 2, p. 228-233.
[Artikel, refereegranskad vetenskaplig]

Analyses of samples of bed ash from a stationary fluidized bed boiler show the presence of calcium sulphide. In some samples, half of the total sulphur was present as sulphide. The samples containing CaS were obtained unstaged conditions and with a high excess air ratio, 1.3 to 1.4. The samples were taken after a stop in the limestone addition, i.e. at high SO2 emissions of about 1000 mL/m3 (ppm). No CaS was found during limestone addition when the SO2 emission was 300-400 mL/m3. This indicates that formation of large amounts of CaS may be initiated as the SO2 concentration exceeds some critical level.

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Denna post skapades 2011-01-18. Senast ändrad 2016-04-28.
CPL Pubid: 134633


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Institutioner (Chalmers)

Institutionen för energiteknik (1970-2004)
Institutionen för oorganisk miljökemi (1900-2004)



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