Record Display for the EPA National Library Catalog
RECORD NUMBER: 28 OF 194| Main Title | Calcination Kinetics and Surface Area of Dispersed Limestone Particles. | |||||||||||
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| Author | Borgwardt, R. H. ; | |||||||||||
| CORP Author | Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. | |||||||||||
| Year Published | 1985 | |||||||||||
| Report Number | EPA/600/J-85/041; | |||||||||||
| Stock Number | PB85-220366 | |||||||||||
| Additional Subjects | Roasting ; Limestone ; Reaction kinetics ; Surfaces ; Air pollution control ; Particle size ; Nitrogen oxides ; Sulfur oxides ; Industrial wastes ; Combustion products ; Mass transfer ; Reprints ; Acid rain ; Limestone injection multistage burners | |||||||||||
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| Collation | 11p | |||||||||||
| Abstract | The paper gives results of measurements of the rates of calcination of two types of limestones, ranging in particle size from 1 to 90 micrometers, and over the temperature range of 516 to 1000 C. A kinetic model, based on the B.E.T. (Brunauer-Emmett-Teller) surface area of the CaCO3, correlates the results over five orders of magnitude in reaction rate. The B.E.T. surface area of CaO, formed by rapid calcination in dispersed-particle systems is 50 to 60 square m/g. |