Download or read book Equation d tat lectrolyte pr dictive pour le captage du CO2 written by Justyna Rozmus and published by . This book was released on 2012 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is a contribution to the development of a predictive equation of state for the CO2 capture. It is driven by the need for development of new solvents which can be used for CO2 postcombustion capture using aqueous amine-based scrubbing. For this purpose, the PPC-SAFT equation of state is used, coupled with a group contribution method, called GC-PPC-SAFT. This approach is developed and validated in several stages: an accurate description of the pure compounds behaviour, a validation of the binary interactions on mixtures, the evaluation of the effects resulting from ions formation in the aqueous phase, and finally the chemical reactions. To this end, new group parameters have been determined for primary, secondary and tertiary amines and their mixtures with alkanes and alcohols. The bubble point experimental database was complemented with new ebulliometric measurements performed with mixtures containing tertiary amines. The multifunctional molecules such as alkanolamines, diamines and alkanediols have been investigated specifically, in view of their high complexity. Subsequently the primary amine aqueous solutions were studied. Finally, the ions (strong electrolytes) were taken into account by using two additional contributions (MSA and Born) to the Helmholtz free energy. The solvation is described using water-ion association. The accurate behaviour of the model is confirmed by predictions made for numerous properties of all systems of interest in a wide temperature, pressure and concentration range