<abstract xmlns="http://www.w3.org/1999/xhtml"> The CO2 absorption process using aqueous amine solutions has been the most promising technique used for the removal of CO2 from gas streams in energy sector. In recent years, many researchers tested solutions which are composed of several compounds: a slow reacting tertiary amine- and a fast amine acting as an activator. In this paper, the CO2 absorption rate in an aqueous solution of N,N-diethylethanoloamine (DEEA) and activated solutions DEEA is investigated experimentally. The activators considered are sterically hindered amines: 2-amino-2-methyl-1-propanol (AMP), 2-amino-2-methyl-1,3-propanediol (AMPD) and N-methyl-1,3-propanediamine (MAPA) from the group of polyamines. The experiments were conducted over the temperature range of 303-333 K and the total amine concentration of 2 M. From the CO2 absorption experiments into mixed aqueous solutions of DEEA and MAPA, it was found that the addition of small amounts of MAPA into aqueous DEEA solutions has a significant effect on the enhancement of the CO2 absorption rate. The application of hindered amines: AMP or AMP as activators resulted in a marginally improvement of the absorption rate of CO2.</abstract>

The CO2 absorption process using aqueous amine solutions has been the most promising technique used for the removal of CO2 from gas streams in energy sector. In recent years, many researchers tested solutions which are composed of several compounds: a slow reacting tertiary amine- and a fast amine acting as an activator. In this paper, the CO2 absorption rate in an aqueous solution of N,N-diethylethanoloamine (DEEA) and activated solutions DEEA is investigated experimentally. The activators considered are sterically hindered amines: 2-amino-2-methyl-1-propanol (AMP), 2-amino-2-methyl-1,3-propanediol (AMPD) and N-methyl-1,3-propanediamine (MAPA) from the group of polyamines. The experiments were conducted over the temperature range of 303-333 K and the total amine concentration of 2 M. From the CO2 absorption experiments into mixed aqueous solutions of DEEA and MAPA, it was found that the addition of small amounts of MAPA into aqueous DEEA solutions has a significant effect on the enhancement of the CO2 absorption rate. The application of hindered amines: AMP or AMP as activators resulted in a marginally improvement of the absorption rate of CO2.

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

Ecological Chemistry and Engineering S

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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

The CO2 absorption process using aqueous amine solutions has been the most promising technique used for the removal of CO2 from gas streams in energy sector....

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

Published Online: Jul 13, 2017

Page range: 239 - 248

DOI: https://doi.org/10.1515/eces-2017-0016

Keywords
CO2 capture, absorption kinetics, N,N-diethylethanolamine, amine blends

© by Hanna Kierzkowska-Pawlak

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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

Published Online: Jul 13, 2017

Page range: 239 - 248

DOI: https://doi.org/10.1515/eces-2017-0016

KeywordsCO2 capture, absorption kinetics, N,N-diethylethanolamine, amine blends

© by Hanna Kierzkowska-Pawlak

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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

Keywords
CO2 capture, absorption kinetics, N,N-diethylethanolamine, amine blends