Precipitation of Sulfur Dioxide from Gaseous Feed by Oxidative Chemisorption
| Autor: | Martin Vorbach, Rolf Marr, Matthaeus Siebenhofer |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
inorganic chemicals
Process Chemistry and Technology General Chemical Engineering Inorganic chemistry chemistry.chemical_element Filtration and Separation Sorption General Chemistry Sulfur Chemical reaction Reaction rate chemistry.chemical_compound chemistry Mass transfer Absorption (chemistry) Hydrogen peroxide Sulfur dioxide |
| Zdroj: | Separation Science and Technology. 39:879-891 |
| ISSN: | 1520-5754 0149-6395 |
| Popis: | Several sorption processes based on precipitation of sulfur dioxide by absorption with chemical reaction have been investigated. The target of this study was the evaluation of process boundaries and boundaries of application for the following processes: • Absorption of sulfur dioxide with caustic soda. • Catalytically supported oxidation of sulfur dioxide in the liquid phase. • Absorption of sulfur dioxide with dichromate. • Absorption of sulfur dioxide with sulfate acidic hydrogen peroxide. The processes were investigated in a lab‐scale falling‐film absorption column. Mass transfer area of the film was 0.22 m2. In absorption of sulfur dioxide with aqueous solution of dichromate below pH values of 2.5, the rate of reaction of dichromate with sulfur dioxide is very fast. As a consequence, absorption of sulfur dioxide is mainly controlled by mass transfer in the gaseous phase. Absorption of sulfur dioxide with caustic additives from an oxygen‐containing gaseous phase is followed by oxidation in the... |
| Databáze: | OpenAIRE |
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