A KINETIC STUDY OF THE DRY SO2-LIMESTONE REACTION AT LOW TEMPERATURE |
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Authors: | JONAS KLINGSPOR HANS T KARLSSON INGEMAR BJERLE |
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Affiliation: | Dept. of Chemical Engineering , Lund Institute of Technology , P. O. Box 740, Lund, S-220 07, Sweden |
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Abstract: | The dry reaction between SO2 and limestone has been investigated at low temperatures. The study was focused on the wet-dry scrubbing application. Parameters investigated included: temperature: 313–353 K, SO2 concentration: 50–4000 ppm, oxygen concentration: 0–9 percent, carbon dioxide concentration: 0–10 percent, relative humidity 0–92 percent, limestone panicle diameter: 4–100 microns, and limestone conversion: 0–95 percent. The study has revealed that the relative humidity, the particle diameter and the limestone conversion have the most dramatic impacts on the reaction rate. A suggested reaction mechanism is outlined in great detail. |
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