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Simulation of SO2 absorption into sulfuric acid solutions containing hydrogen peroxide in the fast and moderately fast kinetic regimes by S. Colle; J. Vanderschuren; D. Thomas is a Engineering article available to read on EtoBox.

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Absorption of sulfur dioxide into aqueous solutions containing hydrogen peroxide results in the irreversible oxidation to sulfuric acid. As shown in previous works, the absorption rate increases with the concentration of oxidizing agent but decreases with the rise of acidity. This paper presents a thorough kinetic investigation of the liquid-phase reaction of SO 2 for a wide range of H 2 O 2 and H 2 SO 4 concentrations. Absorption of sulfur dioxide was carried out at 20 • C in a pilot-scale packed column. The experimental data were modelled thanks to the theory of absorption in the fast or moderately fast chemical reaction regimes defined by classical Hatta numbers and depending on the H 2 O 2 concentration at a given acidity. For both regimes, a satisfactory agreement was obtained between experimental results and predictions of models including original values of kinetic parameters.

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Author

S. Colle; J. Vanderschuren; D. Thomas

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0009-2509)

Published

2005

Language

EN

Field

Engineering (Physical Sciences)