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Type: Artigo de periódico
Title: Performance of a UV-assisted Hydrogen-peroxide-fed Spray Tower for Sulfur Dioxide Abatement
Author: Codolo, M
Bizzo, W
Bertazzoli, R
Abstract: Spray towers are widely used for controlling air pollution by gases such as SO2, CO2, NOx, and HCl. Results of sulfur dioxide absorption in a spray tower using solutions of 1gL-1 and 2gL-1 of hydrogen peroxide are reported. For comparison, a water and sodium hydroxide solution was also used for SO2 abatement. The results indicate that H2O2 may be an important alternative for SO2 removal in spray towers. A set of experimental removal efficiency data was obtained as a function of gas and liquid flow rates. Volumetric mass transfer coefficients (kga) were calculated and an experimental relationship among kga, gas, and liquid flow rates was proposed. As a final experiment, an oxidation process assisted by UV radiation using a 1gL-1 solution of H2O2 was carried out to speed up the SO2 removal rate. The results obtained in this condition are similar to those achieved with a solution of 2gL-1 H2O2.
Subject: Hydrogen peroxide
Mass transfer
Spray tower
Sulfur dioxide
Country: Alemanha
Editor: Wiley-v C H Verlag Gmbh
Citation: Chemical Engineering & Technology. Wiley-v C H Verlag Gmbh, v. 36, n. 7, n. 1255, n. 1260, 2013.
Rights: fechado
Identifier DOI: 10.1002/ceat.201200699
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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