Calcium sulphide formation in fluidized bed boilers
Journal article, 1995

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.

Author

Anders Lyngfelt

Chalmers, Department of Energy Technology

Vratislav Langer

Chalmers, Department of Environmental Inorganic Chemistry

Britt-Marie Steenari

Chalmers, Department of Environmental Inorganic Chemistry

Kathy Puromäki

Chalmers, Department of Environmental Inorganic Chemistry

Canadian Journal of Chemical Engineering

0008-4034 (ISSN) 1939019x (eISSN)

Vol. 73 2 228-233

Areas of Advance

Energy

Subject Categories

Chemical Engineering

DOI

10.1002/cjce.5450730209

More information

Created

10/7/2017