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Agglomeration of coal ash in fluidized beds

✍ Scribed by Prabir Basu; A. Sarka

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
323 KB
Volume
62
Category
Article
ISSN
0016-2361

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✦ Synopsis

The defluidization behaviour of ash derived from Indian coal by combustion in a fluidized bed has been studied. Sintering temperatures for ash in several ranges of particle size were measured with a dilatometer. In agreement with the earlier work on other coals it was found that above the sintering temperature pairs of complementary, limiting values of fluidization velocity and bed temperatures exist which mark the onset of defluidization when the ash particles are heated in a fluidized bed. A linear relation wasobserved between bad temperatureand limiting defluidization velocity. Theconstants in the corresponding equations were calculated for two size ranges of particles.

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