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Liquid-phase catalytic oxidation of smelting-gases containing SO2 in low concentration

✍ Scribed by Sun Pei-Shi; Ning Ping; Song Wen-Biao

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
162 KB
Volume
6
Category
Article
ISSN
0959-6526

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✦ Synopsis

In order to approach an applicable method of purifying smelting-gases containing SO 2 in low concentration, the catalytic oxidation of SO 2 in low concentration in smelting-gas, using Mn +2 , Fe +2 and Zn +2 in liquid-phase, was performed separately in a foam absorbing column in a copper smelter. The absorption solution, containing metal ions in an optimal proportion according to an orthogonal test, demonstrates an improved purification capability for smelting-gas. When the concentration of H 2 SO 4 in the solution rises to 20%, the removal efficiency of SO 2 in smelting-gas can be still maintained above 85%. The method is demonstrably effective for the waste gas treatment at small and mid-scale smelters of non-ferrous metals.

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Oxidation of SO2 in a Trickle Bed Reacto
Oxidation of SO2 in a Trickle Bed Reactor Packed with Activated Carbon at Low Liquid Flow Rates
✍ Y. Suyadal; H. Oguz πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 173 KB πŸ‘ 2 views

In this study, the oxidation of SO 2 on activated carbon (AcC) by using distilled water and air was carried out in a laboratory scale trickle bed reactor (TBR). Distilled water and air containing 1.7 % (v/v) SO 2 were fed co-currently downward through a fixed bed of AcC particles in a range of 1Β±7 c