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Advantages in the Use of Membrane Contactors for the Study of Gas−Liquid and Gas−Liquid−Solid Reactions

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Dipartimento di Chimica, Università degli Studi di Napoli Federico II, Complesso Universitario del Monte di Sant'Angelo, 80126 Napoli, Italy, and Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso 31, 16146 Genova, Italy
Cite this: Ind. Eng. Chem. Res. 2005, 44, 25, 9451–9460
Publication Date (Web):June 1, 2005
https://doi.org/10.1021/ie050226g
Copyright © 2005 American Chemical Society

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    Abstract

    Laboratory membrane reactors have been studied with the main aim of using such types of devices in kinetic studies of gas−liquid and gas−liquid−solid reactions. As a matter of fact, these reactors allow a better control of the gas−liquid mass transfer phenomena thanks to the absence of emulsions and foams, the interfacial area being constant and stable with different flow rates, and the modular design and ease of scale-up.Four different reactors have been tested to determine what impacts gas absorption from the internal part of the membrane-tube toward the liquid, both in the absence and in the presence of a chemical reaction. In particular, two different agitated reactors have been used:  one well-stirred without membranes and the other moderately stirred and containing a coiled bundle of membranes. These two reactors had exactly the same size and stirrer, with the presence of the membrane being the unique difference. The performances of these reactors have been compared for both the physical absorption of oxygen in water and the absorption of oxygen in a sulfite solution containing a cobalt salt. Furthermore, two tubular membrane reactors have been used:  one with a single membrane-tube and another one containing a bundle of membrane-tubes. The tubular reactors have been tested in both oxygen physical absorption in water and CO2 chemical absorption in a solution of NaOH. Finally, an attempt has been made to quantitatively evaluate the effect of very fast chemical reactions on the mass transfer rate in membrane reactors.

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     Università degli Studi di Napoli Federico II.

     Università degli Studi di Genova.

    *

     To whom correspondence should be addressed. Tel.:  +39-081-674027. Fax:  +39-081-674026. E-mail:  santacesaria@ chemistry.unina.it.

    Cited By

    This article is cited by 2 publications.

    1. Abdullahi Adamu, Fernando Russo-Abegão, Kamelia Boodhoo. Process intensification technologies for CO2 capture and conversion – a review. BMC Chemical Engineering 2020, 2 (1) https://doi.org/10.1186/s42480-019-0026-4
    2. Pallabi Das, Krishna Kant Kumar Singh, Suman Dutta. Insight into emerging applications of forward osmosis systems. Journal of Industrial and Engineering Chemistry 2019, 72 , 1-17. https://doi.org/10.1016/j.jiec.2018.12.021

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