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- W235399134 abstract "This paper gives results of a study of the reaction of SO/sub 2/ with Ca(OH)/sub 2/ at conditions similar to those of commercial-scale bag filters: 19-74% relative humidity (RH), 30.4-95 C, and 300-4000 ppm SO/sub 2/. The study was carried out in a bench-scale reactor with powder reagent Ca(OH)/sub 2/ dispersed in silica sand. The gas phase was a mixture of N/sub 2/, SO/sub 2/, and water vapor. The effects of Ca(OH)/sub 2/ leading, temperature, RH, inlet SO/sub 2/ concentration, and additives were investigated. Of the additives tried (buffer acids, and organic and inorganic deliquescents), only the deliquescent salts improved Ca(OH)/sub 2/ reactivity toward SO/sub 2/. The improvement depends on the type and amount of salt and on the RH. The experimental data were modeled by a shrinking core model with zero-order kinetics in SO/sub 2/, using an empirical correlation to account for shape and surface roughness of the Ca(OH)/sub 2/ particles. The diffusion coefficient of the SO/sub 2/ through the product layer (De) increases linearly with RH and the amount of additive, and the kinetic rate constant (ks) increases exponentially with RH and the amount of additive." @default.
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- W235399134 date "1988-07-01" @default.
- W235399134 modified "2023-09-27" @default.
- W235399134 title "Effect of relative humidity and additives on the reaction of sulfur dioxide with calcium hydroxide. Final report, January 1984-June 1986" @default.
- W235399134 hasPublicationYear "1988" @default.
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