Publisher DOI: 10.1016/j.fluid.2018.01.007
Title: Modeling the solubility of CO₂ in aqueous methyl diethanolamine solutions with an electrolyte model based on COSMO-RS
Language: English
Authors: Gerlach, Thomas 
Ingram, Thomas 
Sieder, Georg 
Smirnova, Irina 
Issue Date: 15-Apr-2018
Source: Fluid Phase Equilibria (461): 39-50 (2018-04-15)
Journal or Series Name: Fluid phase equilibria 
Abstract (english): A new COSMO-RS based electrolyte model (COSMO-RS-ES) was applied to the prediction of the solubility of CO₂ in aqueous MDEA solutions. For this purpose, the model was combined with the Soave-Redlich-Kwong equation of state to describe the gas phase non-ideality. First, it was shown that the model can successfully describe the phase equilibria in the CO₂ + water, as well as in alkanolamine + water systems. Using a region specific interaction parameter for the amine, the accuracy of the model for the prediction of the phase equilibrium in alkanolamine + water systems was further improved. Additionally, a detailed investigation of different amine + water systems based on the calculation of the partial molar enthalpies and entropies provided valuable insights on the properties of the systems. The description of the ternary CO₂ + MDEA + H₂O system was successful after a readjustment of selected interaction energy equations of the model using few parameters. The model was then applied to the prediction of the species distribution as well as the prediction of the partial pressure of CO₂ at low gas loading.
ISSN: 0378-3812
Institute: Thermische Verfahrenstechnik V-8 
Type: (wissenschaftlicher) Artikel
Appears in Collections:Publications without fulltext

Show full item record

Page view(s)

Last Week
Last month
checked on Oct 1, 2020

Google ScholarTM


Add Files to Item

Note about this record


Items in TORE are protected by copyright, with all rights reserved, unless otherwise indicated.