%0 Journal Article
%T Investigating the Solubility of CO2 in the Solution of Aqueous K2CO3 Using Wilson-NRF Model
%J Iranian Journal of Oil and Gas Science and Technology
%I Petroleum University of Technology
%Z 2345-2412
%A Moradi, Reza
%A Mazloumi, Seyed Hossein
%D 2019
%\ 07/01/2019
%V 8
%N 3
%P 89-100
%! Investigating the Solubility of CO2 in the Solution of Aqueous K2CO3 Using Wilson-NRF Model
%K CO2 capture
%K Solubility
%K Non-electrolyte Wilson-NRF
%K Thermodynamic Modeling
%K Potassium carbonate
%K Ion-specific Parameters
%R 10.22050/ijogst.2018.122093.1443
%X Hot potassium carbonate (PC) solution in comparison with amine solution had a decreased energy of regeneration and a high chemical solubility of . To present vapor and liquid equation (VLE) of this system and predict solubility, the ion specific non-electrolyte Wilson-NRF local composition model (isNWN) was used in this study; the framework of this model was molecular. Therefore, it was suitable for both electrolyte and non-electrolyte solutions. The present research employed the NWN model and the Pitzer-Debye-Hückel theory in order to assess the contribution of the excess Gibbs energy of electrolyte solutions in a short and long range. The data of solubility in water and the system of aqueous were correlated in the model considering a temperature range of and a pressure range of and . The average absolute error of ( ) and ( ) systems were and respectively. The results and comparisons with other models proved that the experimental data were exactly correlated in the model.
%U http://ijogst.put.ac.ir/article_94250_811c9d2763d2f9e1940c87c51f98af9d.pdf