Removal of hydrogen sulfide through an electrochemically assisted scrubbing process using an active Co(III) catalyst at low temperatures
| Autor: | Il-Shik Moon, Jae Wook Jang, Sang-Joon Chung, Muthuraman Govindan |
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| Rok vydání: | 2012 |
| Předmět: |
Reaction conditions
Wet scrubber Chemistry General Chemical Engineering Hydrogen sulfide Inorganic chemistry Pulse voltammetry General Chemistry Industrial and Manufacturing Engineering Volumetric flow rate Catalysis chemistry.chemical_compound Scientific method Environmental Chemistry Data scrubbing |
| Zdroj: | Chemical Engineering Journal. 209:601-606 |
| ISSN: | 1385-8947 |
| Popis: | The authors describe the development and application of an electrochemically assisted wet scrubbing process for H 2 S removal at low temperature. Measurements of the oxidation efficiency of Co(II) at different temperatures demonstrated that its efficiency increased markedly at low temperatures (10 °C). Electro-reactor and normal pulse voltammetry results showed that the removal of H 2 S (95%) proceeded via mediated electrocatalytic oxidation. An increase in the total acidity of the anolyte solution suggested that SO 4 2 - could be the final product. Experiments were optimized using different reaction conditions, such as, by changing H 2 S loading, active Co(III) concentration, and hydrogen sulfide flow rates. At a high active Co(III) concentration (0.066 M) and a low H 2 S flow rate (10 L min −1 ), H 2 S removal was favorable at 10 °C. The use of Co(III) as a mediator at low temperature during electrochemically assisted wet scrubbing appears to offer a means of effectively removing H 2 S during the winter. |
| Databáze: | OpenAIRE |
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