CO2 CAPTURE MODELING IN AQUEOUS SOLUTION OF METHYLDIETHANOLAMINE AND HEXYLAMINE
AMMAR MEHASSOUEL 1*, CHAKIB BOUALLOU 2 1. Université Ouargla, Faculté des Hydrocarbures, Département de Production, Ouargla, Algérie
2 MINES ParisTech, PSL Research University, CES - Centre d'Efficacité Energétique des Systèmes- 60, Boulevard Saint Michel, Paris, France
*Corresponding author: mehassouel.am@gmail.com; am_me18@yahoo.fr
The aim of this work is to establish a thermodynamic model using Non-Random Two-Liquid (NRTL) Electrolyte Aspen PlusTM model, which allows to simulate the CO2 capture by an aqueous mixture of methyldiethanolamine (MDEA) and hexylamine (HA) with mass concentration of MDEA 37 wt % + HA 3 wt %. CO2 solubility data in the mixture were obtained by our experiment in different temperatures 298, 313 and 333 K, and were introduced in Aspen PlusTM, the binary interaction parameters and electrolyte pairs as well as the parameters of the kinetic constants reaction between CO2 and aqueous solution with mass concentration MDEA 37 wt % + HA 3wt % + H2O have been regressed. The average relative deviation on the mole fraction of CO2 in the liquid phase is estimated. The results obtained show that our model represents the experimental data with an error of 17 %.
