Kinetics of Carbon Dioxide with Amines. I. Stopped-Flow Studies in Aqueous Solutions. A Review

Gabriel Couchaux 1 Danielle Barth 2 Marc Jacquin 1 Abdelaziz Faraj 1 Julien Grandjean 1
1 IFPEN - IFP Energies nouvelles
2 PRISM - Parallélisme, Réseaux, Systèmes, Modélisation
Abstract : It is possible to find plenty of information about kinetics of reaction between amine and carbone dioxide in the literature. However, there are several experimental techniques and several possible mechanisms which lead to observe sometimes high dispersion of experimental results with various interpretations. A method which enables to compare kinetic constant got by different authors is proposed in this work. First, we present experimental techniques and justify comparison of data obtained by stopped-flow technique. Then, we plot kinetic data for all amines studied in the literature by a power law dependency with the concentration. This representation illustrates some structure-activity relationships and enables to confront experimental results with the different mechanisms. Advantages and limits of each mechanism are discussed. Finally, we justify the choice of the termo-lecular model to compare data got by different authors. This model leads to a compensation effect which is an argument in favour of this mechanism.
Keywords : Kinetics Carbon dioxide Amines Thermomolecula model
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Gabriel Couchaux, Danielle Barth, Marc Jacquin, Abdelaziz Faraj, Julien Grandjean. Kinetics of Carbon Dioxide with Amines. I. Stopped-Flow Studies in Aqueous Solutions. A Review. Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, Institut Français du Pétrole, 2014, 69 (5), pp.865 - 884. ⟨10.2516/ogst/2013150⟩. ⟨hal-01085331⟩

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