Carbon dioxide mass transfer to non-linear alkanes

Authors

  • D. Gómez-Díaz,

    1. Department of Chemical Engineering, ETSE, High Technical School of Engineering, University of Santiago de Compostela, Rúa Lope Gómez de Marzoa, Santiago de Compostela E-15782, Spain
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  • J. M. Navaza

    Corresponding author
    1. Department of Chemical Engineering, ETSE, High Technical School of Engineering, University of Santiago de Compostela, Rúa Lope Gómez de Marzoa, Santiago de Compostela E-15782, Spain
    • Department of Chemical Engineering, ETSE, High Technical School of Engineering, University of Santiago de Compostela, Rúa Lope Gómez de Marzoa, Santiago de Compostela E-15782, Spain.
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Abstract

In the present article, it has been studied the gas–liquid mass transfer process corresponding to carbon dioxide/2,2,4-trimethylpentane (isooctane) and carbon dioxide/cyclohexane systems, and it has been characterized in relation to the effect caused by the operation variables, such as stirring rate and gas flow-rate. The non-linear nature of the alkanes used in this article has been analyzed using the comparison with the behaviour previously observed behaviour in the carbon dioxide/linear alkanes absorption process. Different models have been used to correlate the experimental mass transfer coefficient and to compare the fitting results.

Abstract

Dans le présent article, on a étudié le procédé de transfert de matière gaz–liquide correspondant aux systèmes dioxyde de carbone/triméthylpentane-2,2,4 (isooctonane) et dioxyde de carbone/cyclohexane, et l'effet des variables opératoires, tels la vitesse d'agitation et le débit de gaz, a été caractérisé. La nature non linéaire des alcanes utilisés dans cet article a été analysée par comparaison avec le comportement observé antérieurement dans le procédé d'absorption avec le système dioxyde de carbone/alcanes linéaires. On a utilisé différents modèles pour corréler le coefficient de transfert de matière expérimental et comparer les résultats de calage.

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