Studies of carbonaceous cenospheres from fluidised-bed combustors
article
FIy ash from fluidised bed combustion of bituminous coals contains carbonaceous cenospheres of several forms including thick-walled opaque, transparent with a skeletal structure and 'balloons' without skeletons. The influence
on cenosphere formation of particle size, temperature, heating rate, petrographic composition, etc. is reviewed. The probability of cenospheres surviving beyond the combustion zone under typical FBC conditions is estimated. Particles from experimental and industrial scale combustors were examined. Differences in chemical composition within single cenospheres were demonstrated and concentrations of major-, trace-elements and PAHs were measured. The possible significance of cenospheres in the environment is discussed.
on cenosphere formation of particle size, temperature, heating rate, petrographic composition, etc. is reviewed. The probability of cenospheres surviving beyond the combustion zone under typical FBC conditions is estimated. Particles from experimental and industrial scale combustors were examined. Differences in chemical composition within single cenospheres were demonstrated and concentrations of major-, trace-elements and PAHs were measured. The possible significance of cenospheres in the environment is discussed.
Topics
TNO Identifier
229606
ISSN
00489697
Source
Science of the Total Environment, 36, pp. 239-246.
Publisher
Elsevier
Collation
8 p.
Place of publication
Amsterdam
Pages
239-246
Files
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