Secondary amines for CO 2 capture: A kinetic investigation using N-ethylmonoethanolamine

Experimental Measurements and Thermodynamic Modelling of Carbon Dioxide Capture with use of 2-(Ethylamino) Ethanol

“…An additional advantage is that, produced from agriculture products or residues ethanol is used to produce ethylamine and ethylene oxide. Both those chemicals react to form EAE [9]. Moreover, methyldiethanolamine (MDEA) is often applied during amine washing to ensure H 2 S removal [2], however its rate constant of second-order reaction is lower than for EAE [8], and existing biogas power plants already removed H 2 S prior to combustion at CHP unit [1,2].…”

“…Moreover, methyldiethanolamine (MDEA) is often applied during amine washing to ensure H 2 S removal [2], however its rate constant of second-order reaction is lower than for EAE [8], and existing biogas power plants already removed H 2 S prior to combustion at CHP unit [1,2]. 2-(Ethylamino)ethanol has been already proved as an absorbent for CO 2 capture [9], and also as an activator in aqueous N,N-diethylethanolamine (DEEA) solutions [10]. However, there is still little experimental data on CO 2 capture with EAE at high loading rates (mol CO 2 mol EAE -1 > 1), and while the focus was rather on kinetics of reaction [8][9][10][11][12], no publication on thermodynamic modelling representing vapour-liquid equilibrium in the CO 2 -EAE -H 2 O system was found.…”

“…2-(Ethylamino)ethanol has been already proved as an absorbent for CO 2 capture [9], and also as an activator in aqueous N,N-diethylethanolamine (DEEA) solutions [10]. However, there is still little experimental data on CO 2 capture with EAE at high loading rates (mol CO 2 mol EAE -1 > 1), and while the focus was rather on kinetics of reaction [8][9][10][11][12], no publication on thermodynamic modelling representing vapour-liquid equilibrium in the CO 2 -EAE -H 2 O system was found. Therefore in this research the Electrolyte Non Random Two-Liquid (eNRTL) model was applied for modelling the EAE's performance, since it has been widely applied for other amines like MEA [13], MEA and DEA [14], DGA [15], DGA and MDEA [16].…”

CO2 Capture by Absorption in Activated Aqueous Solutions of N,N-Diethylethanoloamine

“…Nowadays, aqueous monoethanolamine (MEA), which is a primary amine, has been most commonly used for gas purification [2][3][4]. Primary and secondary amines react to form carbamates via a fast reaction with CO 2 .…”

Development of NaY zeolite derived from biomass and environmental assessment of carbon dioxide reduction

“…The increase effects atmospheric CO 2 is one of the greenhouse gases. Many researchers have suggested that CO 2 emissions could be reduced by capturing using solvents [1], membranes [2] and solid absorbents [3]. However, liquid absorption method suffers from several drawbacks such as high regeneration energy, large equipment size, solvent degradation, and equipment corrosion [4].…”