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Calcination kinetics and surface area of dispersed limestone particles

✍ Scribed by R. H. Borgwardt

Publisher
American Institute of Chemical Engineers
Year
1985
Tongue
English
Weight
875 KB
Volume
31
Category
Article
ISSN
0001-1541

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✦ Synopsis

The rates of calcination of two types of limestones, ranging in particle size from 1 to 90 pm, were measured over the temperature range 516 to 1,OOO"C. A kinetic model based on the B.E.T. (Brunauer-Emmett-Teller method) surface area of the CaCO3 correlates the results over 5 orders of magnitude in reaction rate. The B.E.T. surface area of CaO formed by rapid calcination in dispersedparticle systems is 50 to 90 m2/g.

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