Solubility of CO₂ in H₂O+N‐methyldiethanolamine +(H₂SO₄ or Na₂SO₄)

Abstract

The solubility of carbon dioxide in aqueous solutions of methyldiethanolamine ( ) ( ) ( MDEA sulfate 1 m , in aqueous solutions of MDEA and MDEA sulfate 2 m and 1 ) ( m, respecti®ely , and in aqueous solutions of MDEA and sodium sulfate 2 m and 1 m, ) respecti®ely was measured at 313 K to 413 K and total pressures up to 10.6 MPa. The experimental results were used to extend and test a model for the thermodynamic equilibrium encountered in the solubility of carbon dioxide in such aqueous solutions.

Thermodynamics of fluid‐phase equilibria for standard chemical engineering operations

“…The early theory by Edwards has been much improved by applying the full Pitzer theory. Maurer and coworkers have presented an extensive correlation of VLE for aqueous solutions of weak electrolyte gases with or without selected added salts (Rumpf et al, 1993;Bieling et al 1995, Kamps et al, 2002, Kamps et al, 2003.…”

Solubility of Carbon Dioxide in Aqueous Solutions of Monoethanolamine in the Low and High Gas Loading Regions

“…The model used to describe the electrolyte solution is similar to the model used previously in our group. [3][4][5][6][7][8]11,33,34 A crude outline of the model is given below. More details are presented in the Supporting Information document.…”

Correlation of CO2 solubility in N-methyldiethanolamine+piperazine aqueous solutions using extended Debye–Hückel model

“…Silkenbäumer et al [8], Kuranov et al [9], Xu et al [10], and Kamps et al [15][16] studied the solubility of sour gases in aqueous solutions of alkanolamines using Pitzer's equation for the excess Gibbs free energy. Kaewsichan et al [11] and Austgen et al [12] correlated the solubility of acid gases in aqueous solutions of MEA and MDEA using the electrolyte-UNIQUAC and electrolyte-NRTL models respectively.…”