HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Modeling of the CO 2 Absorption in a Wetted Wall Column by Piperazine Solutions

Abstract : Theoretical and experimental investigations on the reactive absorption of CO 2 in aqueous solutions of PZ using a wetted wall column are presented. A rigorous two dimensional absorption model, accounting for kinetics, hydrodynamics and thermodynamics, has been developed for a wetted wall column. Major innovative features of the model, compared to previous work, are the account on the variation of the gas-side CO 2 concentration over the reactor height as well as the computation of the gas-liquid equilibrium by a thermodynamically consistent approach. A laboratory-scale wetted wall column was conceived and constructed and the gas-side mass-transfer coefficient was estimated. CO 2 absorption experiments were carried out on unloaded and loaded aqueous solutions of PZ over the range of 298-331 K, and for total PZ concentrations varying from 0.2 to 1 M. The reactor model permitted to predict the absorption fluxes in loaded as well as in unloaded solutions with an excellent accuracy, i.e. 3.2% AAD. In loaded solutions, the gas-side CO 2 concentration gradient, as well as the dicarbamate formation reaction has to be taken into account.
Document type :
Journal articles
Complete list of metadata

Cited literature [29 references]  Display  Hide  Download

Contributor : Françoise Bertrand Connect in order to contact the contributor
Submitted on : Friday, November 21, 2014 - 11:26:11 AM
Last modification on : Monday, March 28, 2022 - 11:26:04 AM
Long-term archiving on: : Friday, April 14, 2017 - 8:23:23 PM


Publisher files allowed on an open archive



Alberto Servia, Nicolas Laloue, Julien Grandjean, Sabine Rode, Christine Roizard. Modeling of the CO 2 Absorption in a Wetted Wall Column by Piperazine Solutions. Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, Institut Français du Pétrole (IFP), 2014, 69 (5), pp.885 - 902. ⟨10.2516/ogst/2013136⟩. ⟨hal-01085340⟩



Record views


Files downloads