Mass Transfer and Liquid-Film Formation in a Spray Tower for SO2 Removal in Sodium Hydroxide Solution

Mass Transfer and Liquid-Film Formation in a Spray Tower for SO2 Removal in Sodium Hydroxide Solution

Author Codolo, Milene Costa Autor UNIFESP Google Scholar
Bizzo, Waldir Antonio Google Scholar
Abstract Spray towers allow for controlling air pollution in which a liquid is sprayed in small droplets to produce a large interfacial area for mass transfer between a gas and a liquid phase. An experimental study of a spray tower for removing SO2 is described. The experiments were carried out under different operating conditions by varying the gas velocity, liquid flow rate, and SO2 concentration. SO2 removal efficiency, volumetric mass transfer coefficient, and liquid-film formation as a result of the collision of droplets against the tower wall are investigated. Removal efficiency and volumetric mass transfer coefficient are analyzed as a function of gas velocity, liquid flow rate, and SO2 concentration, while liquid-film formation is evaluated as a function of tower height. The results indicate high removal efficiency. Correlations to predict the volumetric mass transfer coefficient are also proposed.
Keywords Absorption
Liquid films
Mass transfer coefficients
SO2 removal
Spray towers
xmlui.dri2xhtml.METS-1.0.item-coverage Weinheim
Language English
Sponsor Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Date 2016
Published in Chemical Engineering & Technology. Weinheim, v. 39, n. 10, p. 1939-1945, 2016.
ISSN 0930-7516 (Sherpa/Romeo, impact factor)
Publisher Wiley-V C H Verlag Gmbh
Extent 1939-1945
Origin http://dx.doi.org/10.1002/ceat.201500389
Access rights Closed access
Type Article
Web of Science ID WOS:000387054200021
URI https://repositorio.unifesp.br/handle/11600/56977

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