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Gas Absorption Accompanied by Chemical Reaction in a System of Three-phase Slurry-foam Reactors in Series by Susanta K. Jana; Ashok N. Bhaskarwar is a Engineering article available to read on EtoBox.

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Experiments have been performed in a semi-batch reactor for the absorption of carbon-dioxide gas in an aqueous foam-slurry containing suspended particles of calcium hydroxide. One each of cationic, anionic and non-ionic surfactants has been used as the foaming agent. Single-stage model for such a reactor, reported earlier by the present authors, agrees well with the present experimental data. The single-stage model was developed to account for the contribution of the storage section as well, instead of the foam section alone as reported in the literature, towards gas absorption and chemical reaction, considering that the storage constitutes 60-85 percent of the total liquid/slurry charged into the reactor. A system of continuous slurry-foam reactors in series has been simulated for the carbonation reaction mentioned above using the single-stage semi-batch reactor model and the material balance equations. Values of k sl and εl , required for this, have been calculated from dimensionless correlations developed using the experimental data. Design charts have been presented in the form of figures. A comparison of a foam-bed reactor with other gas-liquid/gas-liquid-solid contactors in r

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Author

Susanta K. Jana; Ashok N. Bhaskarwar

Publisher

Institution of Chemical Engineers; Elsevier ; Institute of Chemical Engineers; Elsevier BV (ISSN 0263-8762)

Published

2011

Language

EN

Field

Engineering (Physical Sciences)