Experimental Investigation and Modeling of Catalytically Supported Sulfite/Bisulfite Oxidation with Oxygen

Kracker-Semler, Gunther; Marr, Rolf; Siebenhofer, Matthäus

doi:10.1002/ceat.200403122

Cited by 10 publications

(1 citation statement)

References 10 publications

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“…Further, Bronlkowska explained the oxidation mechanism of calcium sulfite catalyzed by manganese with employing a kinetic model. The results obtained by Semler also have proved the catalytic effect of ferrous ions. Moreover, we have investigated the catalytic effect of organic acids, in which the kinetic parameters were achieved in presence of peracetic acid catalyst .…”

Section: Introductionmentioning

confidence: 68%

Oxidation Rate of Magnesium Sulfite Catalyzed by Cobalt Ions

Wang

Zhao

et al. 2014

Environ. Sci. Technol.

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Oxidation of magnesium sulfite is important for recycle of byproduct in the magnesium desulfurization. The oxidation rate of magnesium sulfite, prepared by vacuum evaporation method, was investigated in a bubbling tank in presence of transition metal catalysts, which shows cobalt is the most effective. The general reaction orders with respect to cobalt, magnesium sulfite, and oxygen are 0.44, 0, and 0.46, respectively, and the apparent activity energy is 17.43 KJ·mol. The catalytic performance of cobalt compared with other metals was also analyzed employing the ion potential theory. Integrated with the three-phase reaction model, we inferred that the general oxidation rate of magnesium sulfite is controlled by mass transfer of oxygen. Further, the intrinsic kinetics was predicted, indicating that the reaction orders with respect to cobalt and oxygen are 1.0 and 0, respectively. The results are helpful for the recycle of magnesium sulfite in magnesia desulfurization.

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Section: Introductionmentioning

confidence: 68%

Oxidation Rate of Magnesium Sulfite Catalyzed by Cobalt Ions

Wang

Zhao

et al. 2014

Environ. Sci. Technol.

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Intrinsic oxidation kinetics of sulfite catalyzed by peracetic acid under different water quality and light conditions

Wang

Zhao

et al. 2009

Sci. China Ser. B-Chem.

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Oxidation of sulfite is an important process in wet flue gas desulfurization. Using highly purified water or distilled water as a reaction medium and a transparent or an opaque intermittent reaction apparatus, the intrinsic oxidation kinetics of sulfite catalyzed by peracetic acid was investigated under four different conditions. The reaction order of the reagents and the activation energy were obtained. The results indicate that water quality and light have no obvious effects on the reaction order and activation energy, but have an influence on the reaction rate constant. The mechanism of the intrinsic reaction is proposed. The results derived with this mechanism are in good agreement with the experimental results.light, water character, peracetic acid, catalyzed oxidation, sulfite, kinetics

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Selectivity of transition metal catalysts in promoting the oxidation of solid sulfites in flue gas desulfurization

Wang

Pan

et al. 2015

Applied Catalysis A: General

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Experimental Investigation and Modeling of Catalytically Supported Sulfite/Bisulfite Oxidation with Oxygen

Cited by 10 publications

References 10 publications

Oxidation Rate of Magnesium Sulfite Catalyzed by Cobalt Ions

Oxidation Rate of Magnesium Sulfite Catalyzed by Cobalt Ions

Intrinsic oxidation kinetics of sulfite catalyzed by peracetic acid under different water quality and light conditions

Selectivity of transition metal catalysts in promoting the oxidation of solid sulfites in flue gas desulfurization

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